Title: Little by little
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Permanent Link: http://ufdc.ufl.edu/UF00094647/00006
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Title: Little by little
Physical Description: Serial
Language: English
Creator: Department of Mathematics, University of Florida
Publisher: Department of Mathematics, University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: Spring 2007
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Bibliographic ID: UF00094647
Volume ID: VID00006
Source Institution: University of Florida
Holding Location: University of Florida
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The year 2006-2007 was highlighted by the Special Year
which was recognized by an unprecedented award from
Foundation that provided complete travel and lodging supp
six conferences. The principle investigators on the NSF grant
Cenzer, William Mitchell, and Jindrich Zapletal -the m
ably assisted by colleagues Gerard Emch, Jean Larson, an
Year in Logic and Set Theory, which was the sixth special ye;
tion to this very successful program which began in 2001-2

The six conferences of the year in
logic and set theory were:
* Combinatorial set theory, Septem-
ber 15-17, 2006,
* Computability and complexity in
analysis, November 1-5, 2006,
* Model theory and computable
model theory, February 5-10, 2007,
* Singular cardinal combinator-
ics and inner models, March 5-9,
* the Annual Meeting of the As-
sociation of Symbolic Logic, March
10-13, 2007,and
* Set theory of the reals, May 5-11,
The Annual Meeting of the As-
sociation of Symbolic Logic was brought

Special Year In Logic.................................. 2
UF Mathematics in the
V irg in Isla n d s .................... .............. . 4
Math Launches Ramanujan
Colloquium Sponsored by
George Andrews.. ........ ........... ..... 5
Retiree David Drake Honored....................6
The Thompson-Chandler
Research Assistant Professorship ...............7

down to Gaine
cial year activity
exaggeration t
the world's act
took place in o
The year
tured talks of
ber 3, 2006, P
Cornell Univer
Ulam Colloqui
vistas in the
systems. On N
Alexander Kec
the ninth Erdc
Set theory ar
In addition, th
Lectures by Pr
Soare of the U

A Note of Thanks
Faculty & Staff Nc
Christmas Party &
Annual Appreciat
Alexander Bednar
Alumni News.......
Thank You for Yo
Keep Your Classr


November 1, 2006, and by Professor Gerald Sachs of
Harvard and MIT on February 5, 2007.
In March 2007 the Department launched a new
annual distinguished lecture series called the Ramanu-
jan Colloquium. The brilliant young mathematician
Manjul Bhargava of Princeton University delivered the
First Ramanujan Colloquium on Mar 19, 2007 and
followed it with three lectures in the number theory
seminar. Evan Pugh Professor George Andrews of
E C H A I R The Pennsylvania State University, who is Distinguished
by Krishnaswami Alladi Visiting Professor in the Department each spring term,
is the sponsor of the Ramanujan Colloquium. For more
in Logic and Set Theory
on this see page 5.
the National Science on this see page 5.
t o al cThe steady stream of eminent visitors to our
ort for all participants for
ort fr a pr s for department due to the Special Years and other pro-
were Professors Doug
grams has brought increased visibility of our research
ain organizers, who were
Rick Smith. The Special and this has helped in the placement of our graduate
j Rick Smith. The Special
ST ca students. We are very proud that two of our Ph.D.
was a fitting culmstudents received very prestigious post-doctoral
positions. Weihong Guo, who finished her Ph.D. in
esville owing to our spe- Applied Mathematics under the direction of Professor
ies. Thus, it would be no Yunmei Chen, received three academic job offers, one
o say, that in 2006-2007, of which was a prestigious post-doc fellowship at the
ion in mathematical logic NSF funded Institute for Pure and Applied Mathemat-
*ur department. ics (IPAM) at UCLA. She also received a tenure-track
n logic had several fea- assistant professorship from the University of Alabama
wide appeal. On Novem- which she accepted. Dan Warren, who graduated
professor Anil Nerode of with a Ph.D. in Combinatorics under the direction
sity delivered the ninth of Professor Miklos Bona, received the prestigious
um on the topic New Ross Assistant Professorship at Ohio State University
control of complex Graduate student Hung Nguyen, who is working
Aay 7, 2007, Professor under the direction of Professor Pham Tiep, was
hris of Caltech delivered invited to participate at a conference conducted by the
s Colloquium entitled Mathematisches Forschungsinstitut in Oberwolfach,
d dynamical systems. Germany Participation at Oberwolfach conferences
ere were two History is by invitation only, and it is very rare for a graduate
ofessor Professor Robert student to secure such an invitation. Our congratula-
Iniversity of Chicago on tions to these students and their advisors.
In addition to our high level research activities, our
department takes our teaching mission very seriously.
Two of our graduate students Minah Oh and Ruth
Chabot received College of Liberal Arts and Sciences
)tes........................8 Teaching Awards. We were allowed to nominate only
two students, and both received the teaching awards.
io n D ay ........................ 1 0
n .........10 Our congratulations to them.
ek 1933-2007 ............11 Our Department has a very dedicated and ef-
............ ...................... 11 ficient staff w ho cheerfully attend to their m anifold
ur Support................... 12 duties in a timely manner. In March 2007, Provost
iates Up to Date.......... 12 Janie Fouke presented Ms. Margaret Somers with
a Superior Accomplishment Award. The number
of travel reimbursement requests that need to be
Chair continued on page 3






II ,


... .. I

by Douglas Cenzer and Jean Larson
The Department hosted the NSF-sponsored Special Year in Logic during the 2006-07 academic year. Unprecedented support
of $138,000 from the National Science Foundation (awarded to Professors Douglas Cenzer, William Mitchell and Jin-
drich Zapletal) helped make the year a great success. The year featured six conferences, four semester visitors, and numer-
ous speakers and short-term visitors.

Professor Robert Soare (University of Chica-
go) delivering a History Lecture on November

Professor Anil Nerode (Cornell University)
delivering the Ninth Ulam Colloquium on
November 3, 2007.

The first visitors, Guohua Wu of Singapore
and Geoff LaForte of the University of West
Florida, came to Gainesville during the
summer of 2006 and worked with Cenzer
beginning several projects in computability
theory Computability theorists Rebecca We-
ber of Dartmouth and George Barmpalias of
Leeds visited for the fall semester of 2006.
They worked on algorithmic randomness
with Cenzer, and helped organize the CCA
2006 meeting. Set theorists Arnie Miller of
U. Wisconsin and Vladimir Kanovey of Mos-
cow, Russia visited for the spring semester
of 2007.
The Combinatorial Set Theory confer-
ence took place September 15-17 and was
organized by Jean Larson. There were nine
speakers, including Mirna Dzamonja, Stevo
Todorcevic of Toronto and Menachem Magi-
dor, the President of the Hebrew University,
Jerusalem. Representing combinatorics of
discrete semi-groups was Neil Hindman of
Howard University, who has had more Afri-
can American Ph.D. students than any other
person. Jaroslav Nesetril of Charles Univer-
sity in Prague gave a colloquium on Ramsey
theory of homogeneous (finite) structures.
Peter Komjath, known by some for his work
with the Budapest semesters, visited for two
weeks. Mirna gave her presentation as a
poster session since the conference occurred
shortly after she gave birth to her daughter
CCA 2006 (Computability and Com-
plexity in Analysis) took place November 1-5
and was organized by Doug Cenzer and
Klaus Weihrauch of Hagen University, Ger-
many with the tireless assistance given by
graduate student Paul Brodhead. The con-
ference began with four tutorials, two on ef-
fectively closed sets given by Steve Simpson
of Penn State and Rebecca Weber and two
on randomness given by Denis Hirschfeldt
of Chicago and Rod Downey of Wellington,
New Zealand. Anil Nerode of Cornell gave
the ninth annual Ulam Colloquium, a lecture
on hybrid control. Robert Soare of Chicago
gave a Department History Lecture on
computability theory. There were four other
hour speakers, including Ed Griffor of Daim-

ler-Chrysler and a former year-long visitor
to our department, as well as 20 half-hour
talks, five posters, and a total of 50 par-
ticipants. Graduate student Paul Brodhead
gave a paper and was co-author of a second
paper and Cenzer was co-author of two pa-
pers. The conference papers were published
in the Springer Electronic Lecture Notes in
Computer Science (edited by Cenzer) and
bound volumes were distributed at the
meeting. Two post-conference proceedings
will appear in special issues of the journals
"Archive for Mathematical Logic" (edited
by Cenzer) and also "Mathematical Logic
Quarterly." The conference dinner was held
in the Arredondo room at the Reitz Union.
The final day of the conference featured an
excursion to Cedar Key with dinner for 20
at the Captain's Table (hosted by "Captain
The Workshop on Model Theory and
Computable Model Theory took place
February 5-10, 2007 and was organized
by Doug Cenzer, with Valentina Harizanov
of George Washington University, David
Marker of Illinois-Chicago and Carol Wood
of Wesleyan University. Tutorials were given
by Thomas Scanlon of Berkeley (Definability
in fields) and Julia Knight of Notre Dame
(Computable model theory). Gerald Sachs of
Harvard gave a History Lecture on Vaught's
Problem. There were 17 other hour speak-
ers, including Denis Hirschfeldt, Gregory
Cherlin of Rutgers, and Richard Shore of
Cornell, and a total of 60 participants. Se-
lected papers from the workshop will appear
in a special issue of the Archive for Math-
ematical Logic, edited by Cenzer, Harizanov,
Marker and Wood. Some of the participants
spent the free afternoon hiking at the San
Felasco Hammock State Park.
The 2007 Annual Meeting of the
Association for Symbolic Logic took place
March 10-13 and was organized (primarily)
by Jean Larson, Mirna Dzamonja and Jindra
Zapletal, with assistance from Doug Cenzer
and William Mitchell. The Godel Lecture
was given by Thomas Scanlon for Ehud
Hrushovskii. There were 10 plenary lectures,
including one by our own William Mitchell

2 Little by Little, the newsletter of the Department of Mathematics at the University of Florida, Volume 20, Issue 1, Spring 2007

Professor Gerald Sachs (Harvard University) delivering a History Lecture
on February 5, 2007.

Professor Alexander Kechris (Caltech) delivering the Ninth Erdos Col-
loquium on May 7, 2007.

and one by Michael Benedikt of Bell Labs.
Denis Hirschfeldt completed the "Hat Trick"
with his third lecture of the Special Year.
There were four special sessions, Algebraic
Model Theory (M. Aschenbrenner of Illinois),
Computability Theory (N. Greenberg of
New Zealand), Connections of Set Theory
with Boolean Algebras and Topology (M.
Dzamonja and J. Larson), and Logic Research
for Undergraduates (W. White of Cornell),
with 39 half-hour talks, as well as 9 shorter
contributed talks. Speakers included Ph.D.
alumni Diego Rojas-Rebolledo, current
student Brodhead, and return visitors Barm-
palias, Knight, Simpson and Wu. There were
about 150 participants in all. The conference
reception was held in the Keene Center and
there was a second reception, hosted by the
Philosophy Department, in the McQuown
Room, also in Dauer Hall.
The conference on Singular Cardinal
Combinatorics and Inner Model Theory
took place March 5-9 and was organized
by William Mitchell, Matthew Foreman
(UC Irvine) and John Steel (UC Berkeley).

Chair, continued from page 1
processed each year has risen significantly
especially with the conferences we are con-
ducting annually. Ms. Somers has been able
to deal with this admirably and was justly
recognized with the award.
A very pleasant and unexpected devel-
opment during an otherwise dismal budget
year was the donation that the department
received from William and Cynthia Chan-
dler which helped revive the prestigious John
Thompson Research Assistant Professorship.
We are especially thankful to our colleague
Professor Tim Olson, who was primarily
responsible in convincing the Chandlers to
help the Department in this manner. Interim
Dean Joe Glover of the College of Liberal
Arts and Sciences agreed to match the
donation by the Chandlers suitably so that

Tutorial lectures were given by Itay Neeman
(UCLA) on Hierarchies of Forcing Axioms
and Matt Foreman on Generic Elementary
Embeddings. There were 14 other lectures,
including talks by Mirna Dzamonja, Sy
Friedman (Vienna), Vladimir Kanovey and
Hugh Woodin (UC Berkeley) and a total of
30 participants. Bill Mitchell and Jean Larson
hosted the conference party at their house.
Participants especially enjoyed the Wednes-
day afternoon excursion to the Alachua Sink
on Paynes Prairie led by Bill Mitchell, where
many large alligators were seen up close.
The conference on Set Theory of
the Reals took place May 5-11 and was
organized by Jindra Zapletal, Alex Kechris
(Cal Tech) and Stevo Todorcevic (Toronto).
Tutorials were given by Thomas Schlum-
precht (Texas A&M) on Banach Spaces, by
V Kanovey on Borel Equivalence Relations,
and by Benjamin Weiss (Hebrew University)
on Ergodic Theory. There were 15 other
lectures, including talks by Arnie Miller
and Justin Moore (recently hired by Cornell
University). Matt Foreman encouraged Bill

the Thompson-Chandler Research Assistant
Professorship in Applied Mathematics could
be offered as a three year position starting in
2008-2009. During the Annual Recognition
Tea on April 24, 2007, the Chandlers were
honored for their contribution. For more on
this see page 7.
At the end of Spring 2007, Professor
David Drake retired after more than three
decades of distinguished service to the De-
partment including a five year term as Chair
(1988-1993). Professor Drake was honored
at the Annual Recognition Tea on April 24,
2007. For more on this see page 6.
Professor Al Bednarek, who was Chair-
man of the Mathematics Department for
seventeen years (1967-1984), died in March
2007 after a long battle with cancer. During

Mitchell to lead a reprise of the Paynes Prai-
rie trip, but the area was closed to visitors
the day before the scheduled trip because of
danger from the alligators in a time of high
Southeastern regional visitors during
the year included Howard Becker of South
Carolina, Jeff Hirst of Appalachian State,
Renling Jin of the College of Charleston,
Geoffrey LaForte of West Florida, Bob Lubar-
sky of Florida Atlantic and Alan Dow of UNC

Editor's Note: As a pleasant follow-up to
the events of the Special Year in Logic, we
are pleased to be able to announce that the
National Science Foundation approved a
Focused Research Group proposal for Algo-
rithmic Randomness submitted by Professor
Douglas Cenzer at UF along with leading
researchers at 9 other universities including
the University of Chicago and UC Berkeley
The award is for $580,000 over three years.
UF will host a tutorial during Summer 2008
as part of this program.

the Bednarek era many important develop-
ments took place, including the creation of
the Center for Applied Mathematics, as well
as the initial appointment of John Thomp-
son as Graduate Research Professor in the
Fall for two years (1986, 87). Recollections
of Professor Bednarek's life and contributions
can be found on page 11.
As I move into my tenth and final year
as Chair, I look forward to 2007-2008 and
the future with hope. The Department has
accomplished much in the past decade and
its international reputation is at an all time
high. We hope that the Administration will
recognize the Department for its accomplish-
ments and provide the resources needed to
further its progress.

Little by Little, the newsletter of the Department of Mathematics at the University of Florida, Volume 20, Issue 1, Spring 2007 3





by Paul Ehrlich and Bernard Mair

During the summer of 2006, the Mathemat-
ics Department was involved in a minority
outreach effort in the Virgin Islands. Specifically,
Professor Bernard Mair led a team of three
faculty (Professors Murali Rao, Rick Smith and
himself) and two graduate students (Juan Liu
and Paul Brodhead) from the UF Mathematics
Department to the University of the Virgin Islands
(UVI) in St. Thomas to conduct a Research Experi-
ences for Undergraduates (REU) program on
Imaging during June 4-30, 2006. Nine students
from UVI participated in the REU. This was a chal-
lenging assignment for us, since the students had
backgrounds ranging from Pre-Calculus through
all levels up to junior-level Probability and Statis-
tics. As a result, the team tailored the curriculum
to match the mixed levels of students in the
program. We also included peer mentoring by
dividing the students into teams.
A typical day consisted of lectures in the morning
and computer lab sessions in the afternoon. The faculty
presented material on Numerical Linear Algebra, Fourier
Analysis, and Medical Imaging, and the graduate stu-
dents took the lead in the lab sessions. In the afternoon
lab sessions, MATLAB was used to aid in understanding
the morning lectures. These sessions were very intense

A view of the dormitories on the University of Virgin Islands campus.

since the students were learning the
computer software at the same time
as the mathematical application (which
was typically beyond their experience).
We all worked individually with the
students on their assignments. These
sessions were very interactive and spon-
taneous. Sometimes we would have to
interrupt the computing work to review
and explain mathematical topics to the
entire class to facilitate their under-
standing. This made for many exciting
and animated discussions. This format
kept the students engaged even though
the lab sessions were typically over
three hours long. Our team spent many
late nights re-working the presentations
and assignments for the next day in
order to address challenges that were
encountered each day.
After about two and a half weeks,
the students started working in teams
on three projects:
1. Image Compression with Singular
Value Decomposition and the Huff-
man Code,
2. Reconstruction of Positron Emission
Tomography Images, and
3. The Effects of Hann Filtering on Posi-
tron Emission Tomography Images.
The workshop culminated with

student presentations on these topics
to a larger group of UVI faculty and
students. All the students were familiar
with making PowerPoint presentations
and seemed to enjoy working on the
research projects, and making these
presentations. One of the research
projects (Reconstruction of Positron
Emission Tomography Images) was
developed by the students into a paper
that was accepted for presentation in
the 2006 Annual Biomedical Research
Conference for Minority Students
(ABRCMS), November 8-11, 2006 in
Anaheim, California. This REU was
funded by a grant from the NSF to the
Office of the Provost (PI: J. Glover), and
was administered by Dr. Anne Donnelly,
Director of the South East Alliance for
Graduate Education and the Professori-
ate (SEAGEP) at UF. Dr. Mark Boume-
dine, a faculty member at UVI, made
local arrangements. Given the SEAGAP
involvement, it was especially a pleasure
to have our SEAGEP Fellow Paul Brod-
head participating with us. Many of the
UVI students were interested in attend-
ing UF for graduate school. We wish to
express our thanks to all participants in
making this a rewarding and successful

One of the UVI student teams presenting their results
on their project.

The UF instructors and UVI students at the kickoff of the REU.

4 Little by Little, the newsletter of the Department of Mathematics at the University of Florida, Volume 20, Issue 1, Spring 2007





by Krishnaswami Alladi

In Spring 2007, the Mathematics Department launched a new distin-
guished colloquium series called the Ramanujan Colloquium. Distin-
guished Visiting Professor George Andrews of The Pennsylvania State
University is the sponsor of this new colloquium series. Professor Manjul
Bhargava of Princeton University delivered the First Ramanujan Colloqui-
um on March 19, 2007-a new phenomenon in the mathematical world

The Department currently has three very
well established series of distinguished
colloquia-the Erd6s Colloquium in
pure mathematics, the Ulam Col-
loquium in applied mathematics and
the Center for Applied Math (CAM)
Colloquium. These featured colloquia
have brought very eminent speakers to
our department and have raised our vis-
ibility campus wide and nationally. The
Department has one of the strongest
programs in the world on areas of
mathematics influenced by the Indian
genius Srinivasa Ramanujan* and
the appointment of George Andrews
as Distinguished Visiting Professor each
spring has raised the stature of this
program significantly. Thus it was felt
worthwhile to launch this new collo-
quium series which will be on areas of
mathematics influenced by Ramanujan.
Professor Manjul Bhargava of Princ-
eton University who delivered the First
Ramanujan Colloquium, is at the young
age of 32, one of the most eminent
mathematicians in the world. When
appointed as Full Professor at Princeton
University at the age of 28, he was the
youngest to hold that high rank at that
hallowed institution. His phenomenal
career began early and recognition
have come to him in rapid succession.
He is the recipient of the Frank and

Brennie Morgan Prize of the American
Mathematical Society (AMS) in 1996. As
an undergraduate at Harvard, he was
a University Salutatorian and winner of
the Hoopes Prize. He then went to do
his Ph.D. at Princeton University under
the direction of Prof. Andrew Wiles of
Fermat's Last Theorem fame. Bhargava
wrote a revolutionary thesis in which
obtained path-breaking extensions
of Gauss' composition law for binary
quadratic forms which was published as
four papers in the prestigious research
journal Annals of Mathematics. For
this and other work he was awarded
the AMS Blumenthal Prize in January
2005, the Clay Mathematics Prize in
November 2005, and the First SASTRA
Ramanujan Prize in December 2005.
Not resting on his laurels, Bhargava (in
collaboration with Jonathan Hanke)
went on to solve a famous problem
of Ramanujan on the determination
of universal quadratic forms. It was
this work that he presented in the First
Ramanujan Colloquium as a survey talk
accessible to a wide audience. He then
followed this with three lectures in the
next two days in the Number Theory
and Combinatorics Seminars in which
he presented the details of the proof of
the main theorem.

Editorial Note: The Editor of the newsletter has been attending colloquium lectures for
over three decades and found Bhargava's presentation at UF to be among the finest
lectures he has ever heard, equaled only by a presentation of Fields Medalist John Milnor
which the Editor heard while a graduate student at Stony Brook. Colloquium Chair David
Groisser also felt the same way

Professor Manjul Bhargava delivering the First Ramanu-
jan Colloquium on March 19, 2007.

*Srinivasa Ramanujan (1887-1920), a self taught genius
from South India, dazzled mathematicians at Cambridge
University by communicating bewildering formulae in a series
of letters. G.H. Hardy invited Ramanujan to work with him
at Cambridge, convinced that Ramanujan was a "Newton of
the East". The rest is history. Within a period of five years, Ra-
manujan produced path breaking work in England by himself
and in collaboration with Hardy. Unfortunately, Ramanujan fell
ill in England and returned to India a very sick man in 1919
only to die a year later at the age of 32. Ramanujan's life story
is sad, yet awe inspiring, because without any formal training
he discovered so much in such a short span of time. He is
considered one of the greatest mathematicians in history.
It was therefore very appropriate, that for the First
Ramanujan Colloquium, we had a speaker of age 32, who
had himself created a revolution in mathematics, and solved
a problem stemming from Ramanujan's work. Thus the
Ramanujan Colloquium is off to a grand start, and we wish
to express our appreciation to Professor George Andrews for
sponsoring this colloquium.

Mathematics Chair Krishnaswami Alladi, Ramanujan
Colloquium speaker Prof. Manjul Bhargava (Princeton),
and Ramanujan Colloquium sponsor Prof. George
Andrews (Penn. State University), March 20, 2007.

Little by Little, the newsletter of the Department of Mathematics at the University of Florida, Volume 20, Issue 1, Spring 2007 5

by Paul Ehrlich

Faculty, staff and students, along with Profes-
sor David Drake and his wife Donna Born,
gathered in Little Hall 121 on April 26, 2007
prior to the Annual Recognition Tea in the
Atrium in order to celebrate the 40 years of ser-
vice that Drake has given to the Department of
Mathematics, the University of Florida, and the
mathematics profession. In introducing Profes-
sor Neil White to give a 30 minute presenta-
tion on Drake's research, Chair Krishna Alladi
commented that Drake was a noted combina-
torialist and that with his continued participa-
tion, the Combinatorics Seminar is the longest
running seminar currently still being held in the
Department of Mathematics.
Neil White summarized his presentation for the newslet-
ter as follows: "Prof. David A. Drake retired this Summer,
completing a forty-year career on the faculty of the Depart-
ment of Mathematics. He completed his B.A. (cum laude) at
Harvard University in 1959, and his Ph.D. at Syracuse Uni-
versity in 1967. He then moved to Gainesville with his wife,
Donna, and three daughters. He spent one year as a Research
Associate at University of Florida, five years as an Assistant
Professor, seven years as an Associate Professor, and 27 years
as a Professor. He also served as Chair of the Mathematics De-
partment from 1988 to 1993. The time he entered the Chair
position was one of relative turmoil in the Department, and
he was successful in bringing it back to calmer times. He was
also instrumental in the effort to bring Prof. John Thompson
to our Department.
Prof. Drake had three Ph.D. students, Phyrne Bacon,
Stephen Dow, and Cyrus Kitto. He had 59 research papers,
including some co-authored with his students, with col-
leagues at U.F. (including Prof. Larson, Prof. Keating, and the
late Prof. Ho), or with mathematicians from other institutions.
He was awarded two Humboldt Fellowships and a number of
N.S.F research grants.
His research centered on finite Hjelmslev planes, a type
of geometric object which allows more than one line between
a given pair of points. Hielmslev was a Danish physicist who

Professor Neil White delivered a 30 minute presentation on
Professor David Drake's research in over 4 decades of service
at UF

Professor David Drake thanking the department for being friendly and hardworking at the An-
nual Recognition Tea, where he was honored with a plaque for his years of service.

believed that such objects (in the infinite
3-dimensional analogue) were the best way
to describe our physical universe. Drake
also worked on a number of combinatorial
objects related to Hjelmslev planes, including
finite projective and affine planes, mutually
orthogonal Latin squares, blocking sets in
symmetric designs, ovals and hyperovals in
nets and finite projective planes.
Chair Alladi then began the second half
of the program in which further anecdotes
and tributes were presented to Professor
Drake by again recalling how when Graduate
Research Professor Thompson resigned after
spending two semesters in the department
during the 1987-1988 academic year, that
Drake worked throughout his term as chair
to effectuate the return of Thompson, a feat
which was accomplished only during the
final semester of his chairmanship. Alladi also
recalled that while he owes his presence at
UF in part to Paul Erd6s, Drake himself was
chair of the search committee the year that
Alladi was recruited.
In the context of the era of the 5 year
program to fill 20 positions beginning in
1987-1988, Professor Paul Ehrlich, who
came to UF during the first year of this pro-
gram, paid tribute to an aspect of the Drake
Chairmanship. In trying to carry this program
forward, David and Donna Drake and Paul
and Norma Sue Ehrlich participated in a
weekend excursion with famous (but very

taciturn) Professor John Mather of Princeton
University while Mather was on a weeklong
visit to UF around 1990. The group first suc-
cessfully saw a large alligator sunning on the
banks by the road at Lake Alice, then went
on to a Florida spring for a swim (Mather
was known to enjoy swimming), and finally
on to Cedar Key for a dinner at the Brown
Pelican, including the local heart of palm
Professor Stephen Saxon followed
with a tribute in which he welcomed the
chance to thank David for his many years of
service and acknowledged his gratitude for
Drake's unwavering integrity and how he
could always be counted on to do what was
right when he was chair. Office manager
Sandy Gagnon then spoke, recalling that
she started her years in the department in
1988 during the first semester of the Drake
Chairmanship in her very first position at UF
She thanked him for allowing her to serve
as his personal secretary in her first UF job.
Professor Miklos Bona recalled Drake's
effectiveness as a member of the hiring
committee in 1999 in recruiting Bona to
UF against highly competitive offers from
other institutions. Bona recalled an expedi-
tion during his interview trip to UF to the
Devil's Millhopper, where upon arrival, they
found the gate locked at ten minutes to six.
Undeterred, Drake found a way to get them
through the fence, to Bona's consternation.
Drake continued on page 7

6 Little by Little, the newsletter of the Department of Mathematics at the University of Florida, Volume 20, Issue 1, Spring 2007


by Krishnaswami Alladi

n 2002-2003, the Department launched the Thompson Research As-
sistant Professorship to honor Graduate Research Professor John G.
Thompson after he received the National Medal of Science in Decem-
ber 2000 from President Clinton. This is a three-year position offered to
outstanding recent Ph.D.s, namely those who are no more than three
years from their degrees. This position, modeled along the lines of similar
named assistant professorships at mathematics departments in top
universities around the nation, has brought our department increased vis-
ibility and stimulated the research atmosphere. With support from CLAS,
RGP, and the Provost's office, the Thompson Assistant Professorship was
offered every year from 2002-2003 until 2005-2006. The position was
not offered for the next two years due to budget difficulties in CLAS and
the University. But now, due to a fortuitous circumstance, this position has
been restarted.
In April 2006, Mr. William and Mrs. Cynthia Chandler generously gave a
donation to restart this position. The College of Liberal Arts and Sciences provided a
suitable match so that we are able to offer a Thompson-Chandler Research Assistant
Professorship as a three-year position starting in Fall 2008. We are extremely grateful
to the Chandlers for helping us revive this prestigious named assistant professorship
The research specialties of the Thompson Assistant Professors during 2002-
2005 were algebra, topology, number theory, partial differential equations, and com-
binatorics. The Thompson-Chandler Research Assistant Professorship is in Applied
Mathematics, to suitably complement the above areas, and to recognize our vibrant
program in applied mathematics.
So how did the Chandler donation to our department come about? We owe
special thanks to our energetic colleague Professor Tim Olson, who is a close friend

I -
William and Cynthia Chandler, with Professor Thomp-
son, Chair Krishna Alladi, and Professor Tim Olson,
April 2001.

of the Chandlers, and who drew their attention to the
importance of reviving this prestigious named assistant
professorship. The Chandlers visited the Department
and the University on April 4, 2006, met with Professor
Thompson, CLAS Interim Dean Joseph Glover and me,
and made the pledge. In appreciation of their support,
the Chandlers were invited to the Annual Recognition
Tea on April 26, introduced to our faculty, staff, and
graduate students, and presented plaques-a small
token of our appreciation for their generous contribu-

Drake, continued from page 6
Professor Yunmei Chen joined the department during
the Drake Chairmanship. She recalled Drake's help in getting
her visa and his encouragement in her working on teaching
effectively in the unfamiliar American academic setting. She
also recalled learning what American homes look like on
attending a party at the Drakes. Professor John Klauder also
paid his tribute to Drake as chair Around 1990 with the fall
semester fast approaching, Klauder went in one week from
walking to being unable to walk and had emergency back
surgery. Drake then stepped in and taught the first half of
Klauder's assigned course while he was recuperating.
Somewhat in the spirit of some of the earlier anecdotes,
Professor Andy Vince recalled a past visit to the department
by the well known coding theorist Professor Vera Pless. In
order to show Vera the natural beauty of north central Florida,
David Drake organized a canoe trip to the Suwanee River. Of
the many canoe trips Andy has taken with Dave, this was the
only one in which Dave's canoe overturned. Unfortunately,
Vera was also in the canoe. She took it fairly well and was
able to quickly find a replacement for her eyeglasses lost at
the bottom of the river

by Krishna Alladi

t is again a pleasure to warmly thank all those who contributed to
the support of our educational activities in the department during
the past academic year. Donations received at the UF Foundation for
the fiscal year through June 30, 2007 totaled almost $4,000. Non-
anonymous alumni and friends donations during the time period
July 1, 2006 up through June 30, 2007 included contributions from
Elizabeth H. Albee, Mary Burner, Da-Mu Cai, Thomas Chi Ch-
ing Hoi, Donald Cook, Victoria H. Delesie, John Devine, David
Drake, Evelyn Farfante, Thomas Hagan, William Hare, William
Hemme, Kevin Keating, John Kenelly, James Marshall, Cyn-
thia Reed, Paul Robinson, Jeremy H. Simmons, Irvin L. Smith,
Lucinda F. Thomas, and Melvin H. Thomas.

Little by Little, the newsletter of the Department of Mathematics at the University of Florida, Volume 20, Issue 1, Spring 2007 7


by Paul Ehrlich
This January 2007, the Joint
Winter Mathematics Meeting was
held in post-Katrina New Orleans
with participation, as usual, by our
Ph.D. alumni, current graduate
students and faculty Professor
William Hager spoke in an AMS
Special Session on Nonsmooth
Analysis on Inverse and Variational
Problems on Asymptotic Conver-
gence Analysis of a New Class
of Proximal Point Methods, joint
research with his Ph.D. student
Dr. Hongchao Zhang. Hager's
current student, Beyza Caliskan
Asian, spoke in the AMS Session
on Partial Differential Equations on
A continuous approach to light-
ening discharge, a joint work
with Hager. Joint work of Profes-
sor Patrick DeLeenheer was
presented by co-author Professor
Michael Malisoff of Louisiana State
University at a SIAM mini sympo-
sium on Mathematical Modeling
of Complex Systems in Biology, in
a lecture On the Stability of Peri-
odic Solutions in the Perturbed
Chemostat. Professor Chawne
Kimber (Ph.D., 1999) of Lafayette
College was a co-organizer of
the Project NEXT Panel Discussion
on Publishing undergraduate
research and expository articles.
Professor Tony Shaska (Ph.D.,
2001) of Oakland University again
co-organized an AMS Special Ses-
sion on Computational Algebraic
and Analytic Geometry for Low
Dimensional Varieties.
On December 8-9, 2007, the
UF-FSU Topology Meeting was
held in Gainesville, with co-or-
ganizers Professors Alexander
Dranishnikov and Jed Keesling.
Dr. Sergei Melikhov, Ph.D.
2004, of the Steklov Institute in
Moskow, attended, lecturing on
The triple mu-invariant of links
is a cohomology invariant from
configuration space. Current
graduate students Thanos Genti-
mis and Yuri Turygin also spoke.
Gentimis reported on Groups of
asymptotic dimension one and
Turygin spoke on A Borsuk-Ulam
theorem for Z_(2^k)-actions on

Professor Krishnaswami Alladi
gave a plenary lecture on New
approaches to Jacobi's triple
product identity and a qua-
druple product expansion at
the Fourth China-Japan Confer-
ence in Weihai, China on August
31, 2006. While in China, he
also gave a colloquium at the Jai
Tong University in Shanghai on
August 29th. Enroute to China,
he stopped in India and gave a
colloquium at the Central Uni-
versity in Hyderabad on August
19. Alladi was also one of the
organizers of the International
Conference on Number Theory
and Combinatorics, December
20-22, 2006 at SASTRA University
in Kumbakonam, the hometown
of the Indian mathematical genuis
Srinivasa Ramanujan. Alladi was
PI on a grant from the Indo-US
Forum for Science and Technol-
ogy that supported the visits of
five mathematicians from the
USA to this conference, including
Professor Miklos Bona from our
department. On his way back to
the USA from India, Alladi par-
ticipated in the Annual Meeting
of the American Mathematical
Society in New Orleans during
January 2007. He was one of the
leaders of the Mathematics Chairs
Workshop conducted at this AMS
meeting. This was his third and
last year as Workshop Leader.
Between January 26 and February
3, 2007, Alladi was in the United
Arab Emirates as Chair of a team
for the accreditation of math-
ematics programs at the American
University of Sharjah, and the Uni-
versity of Sharjah. Alladi also gave
several popular lectures during the
year on various aspects of math-
ematics. These included a talk on
Paul Erd6s-his wonderful life
and mathematics in the Science
Lecture Series for students at Day-
tona Beach Community College
on September 21, 2006, and a
talk on Srinivasa Ramanujan-a
most extraordinary mathemati-
cian at the Oak Hammock Retire-
ment Community in Gainesville on
February 20, 2007.

Professor Louis Block gave an
invited lecture at the Czech Slovak
Workshop on Discrete Dynamical
Systems, Praded, Czech Republic,
on June 29, 2006. The title of
the lecture was Minimal Sets in
Dynamical Systems.
Professor Miklos Bona was in-
vited to the University of Witwa-
tersrand in Johannesburg, South
Africa during May 24-June 7,
2006. He gave a series of talks at
the John Knopfmacher Center of
Applicable Analysis and Num-
ber Theory. His host was Arnold
Knopfmacher, son of the late
John Knopfmacher. Bona gave
two short courses, one on pattern
avoiding permutations and a
second on enumerative combi-
natorics in addition to writing a
joint paper with Arnold Knopf-
macher. Then during December
19-22, 2006, Bona was invited
to the International Conference
on Number Theory and Combi-
natorics in Kumbakonen, India.
This city, located close to the
southeastern tip of India, is the
hometown of Ramanujan, and
is where SASTRA University is
located. It is a 7 hour ride to get
there from Chennai. The main
speaker at the conference was
Fields Medalist Terrance Tao, who
was awarded the Ramanujan
Prize during the meeting. One
of several afternoon programs
was a visit to Ramanujan's house
where he discovered many of his
theorems sitting at a particular
window. Bona had a great time,
even if his luggage never made
it to India, and was returned to
Gainesville only two months later.
Also, starting with fall, 2007,
Bona has been awarded a collab-
orative NSF grant for $ 500,000
along with researchers in CISE and
the Brain Institute, to understand
how viruses can decompose using
rooted trees, many of which have
icosahedral symmetries.
Professor Douglas Cenzer has
been named as a principal inves-
tigator on a Focused Research
Group Award with 10 universities

for $ 580,000 to study Algorith-
mic Randomness. Collaborating
institutions include the University
of Chicago and the University of
California-Berkeley. Ideas from re-
cursion theory, complexity theory
and other specialities will be ap-
plied in this project, which will
include workshops and summer
schools for graduate students.
Professor Yunmei Chen has been
appointed to the Editorial Board
of the newly formed SIAM Journal
on Imaging Sciences.
Professor Richard Crew was a
Visiting Professor at the University
of Rennes I in Rennes, France,
during March 2007. He lectured
on the theory of arithmetic D-
modules while in residence.
Professor Bruce Edwards gave a
plenary presentation on Multiple
Approaches to Teaching Calcu-
lus at a Houghton Mifflin Confer-
ence on Achieving Success in the
College Mathematics Classroom
in Orlando in March 2007. He was
also a plenary lecturer at the 2007
Joint Meeting of the Florida Sec-
tion of the Mathematics Associa-
tion of America and the Florida
Two Year College Mathematics
Association, held in Tallahassee
during February 16-17, 2007,
speaking on Understanding
How Your Calculator Calcu-
lates. Professor Chuck Lindsey
(Ph.D., 1988) of the Florida Gulf
Coast University, also gave a
plenary lecture at this meeting,
speaking on The Sunshine State
Standards for Mathematics.
Edwards also lectured at three
different universities in Columbia,
South America in March 2007,
lecturing in Spanish on teaching
with technology. Three textbooks
with co-authors Ron Larson and
Bob Hostetler have been pub-
lished by Houghton Mifflin-the
first edition of Essential Calculus;
the 5th edition of College Alge-
bra, A Graphing Approach; and
the first edition of Precalculus, A
Graphing Approach.

8 Little by Little, the newsletter of the Department of Mathematics at the University of Florida, Volume 20, Issue 1, Spring 2007

Professor Paul Ehrlich partici-
pated at a workshop on Finsler
and Semi-Riemannian Geometries
at the Universidad Autonoma de
San Luis Potosi, in San Luis Potosi,
Mexico, during May 2006. He
delivered two plenary lectures on
Comparison theory in Rieman-
nian and Lorentzian manifolds.
A book entitled Contributions
to Mathematical Physics, a
tribute to Emeritus Professor
Gerard Emch, has been pub-
lished in 2007, edited by Emch's
former students Twareque Ali and
Kalyan Sinha. The book includes
contributions from five of Emch's
students, long time colleagues
and friends the world over, includ-
ing a paper from faculty member
Professor John Klauder.
In fall 2007, Professor Bill Hager,
along with a Physics professor at
New Mexico Tech, was awarded
an NSF grant for $1,045,000 over
4 years, to continue their lightning
research. In this project, a network
of electric field sensors will be
deployed near Langmuir Labora-
tory near New Mexico Tech. Math-
ematical algorithms will be de-
veloped to determine the charge
flow in thunderstorms as they
pass over the sensor network. It is
hoped that the algorithms and in-
strumentation could be deployed
in the future near airports and
spacecraft launch facilities.
In June, 2006, Professor Jed
Keesling gave an invited talk at a
conference in Geometric Topology
at Peking University. On the same
trip, he gave two talks at the Uni-
versity of Science and Technology
of China in Hefei.
In addition to his directing the
REU Program at the University
of the Virgin Islands last summer
as reported in a separate article,
Professor Bernard Mair spoke
on Joint Emission and Motion
Estimation for a Cardiac Cycle
in Gated Emission Tomography
at the Workshop on Statistical
Inverse Problems at the University
of Gottingen in March 2006. In
August 2006 Mair was at the

Meeting on Mathematical Models Professor Pham Tiep gave an in-

in Tomography at Oberwolfach,
Germany, and lectured on An
Algorithm for Penalized Maxi-
mum Likelihood Estimation in
Professor Jorge Martinez served
on the Organizing Committee for
the International Conference on
Order, Algebra and Logics held at
Vanderbilt University in Nashville
during June 12-16, 2007. Marti-
nez lectured at this conference on
Epicompletion in frames with
skeletal maps.
Professor Yuli Rudyak spent
much of the summer 2007 in
Poland, lecturing in three separate
conferences. First, Rudyak par-
ticipated in the M.M. Postnikov
Memorial Conference on Alge-
braic Topology: Old and New held
during June 18-27 at the Stefan
Banach Mathematical Center in
Bedlewo. Next, Rudyak was on
the international organizing com-
mittee and a participant in a con-
ference on Topological Theory of
Fixed and Periodic Points held also
in Bedlewo during July 22-28.
Finally, Rudyak participated in the
First Joint International Meeting
of the American Mathematical
Society and the Polish Mathemati-
cal Society held at the University
of Warsaw during July 31-August
3, co-organizing a Special Session
on "Geometric Applications of
Homotopy Theory."
Staff member Margaret Somers,
a grants assistant, received a
Superior Accomplishment Award
from UF, the first time one of our
staff members has been so recog-
nized in some decades.
Professor Stephen Summers
gave a one-hour invited address at
the East Coast Operator Algebra
Symposium at Georgia Tech in
Atlanta on October 1, 2006. Sum-
mers also delivered an invited talk
in a Symposium on "Deep Beauty:
Mathematical Innovation and the
Search for an Underlying Intel-
ligibility of the Quantum World"
held at Princeton University during
October 3 and 4, 2007.

vited lecture at the conference on
Representations of Finite Groups
at Oberwolfach, Germany during
March 2006. Tiep also gave a
Colloquium in the Department
of Mathematics at Wisconsin in
September 2006.
With the events of fall 2006 in
which the plan for reduction in
size of certain departments in
CLAS set a somewhat sombre
tone for the academic year, the
Annual Student, Staff and Faculty
Appreciation Day, held on the
afternoon of April 26, 2007 none-
theless offered an opportunity to
celebrate our achievements during
the past academic year. Especially,
two members of the Staff marked
5 years service (Constance Doby
and Margaret Somers) and two
marked 10 years service (Gretch-
en Garrett and Marie Hahn).
Interestingly enough, at the
University level, not only did Mar-
garet Sommers receive a Superior
Accomplishment Award as noted
above, but also our past associ-
ates JoAnne McLeary and Vickie
Vallance (who preceded Margaret
in her position) received these
awards as well. Among the under-
graduate accomplishments, apart
from having 20 majors inducted
into the Phi Beta Kappa honorary
society, a mathematics and physics
major Bradford Barker received
a Goldwater Scholarship and two
undergraduates Ryan Flynn and
Michael Segal were University
Scholars, conducting undergradu-
ate research with faculty mentors.
In particular, Flynn's project led to
a co-authored paper in the Annals
of Combinatorics with faculty
advisor Professor Miklos Bona.
This spring, undergraduate Ryo
Fujita received the Kermit Sigmon
Scholarship and graduate student
Ogul Arslan received the second
Chat Yin Ho Scholarship. During
the summer 2006, fall 2006 and
spring 2007, 17 Masters De-
grees and 9 Ph.D. Degrees were
awarded. This year two of our
graduate students, Ruth Chabot
and Minah Oh received Certifi-

cates of Excellence at the CLAS
level and Remy Friends Ndan-
gali, Juan Liu, Doug Robeson,
and Ryan Sankarpersad received
departmental Certificates of Merit
for their teaching. As mentioned
elsewhere in the newsletter,
retiring Professor David Drake
was honored prior to the tea in a
ceremony celebrating his 40 years
service at UF At the tea, Chair
Alladi spoke again of some of
Drake's accomplishments and pre-
sented him with a plaque. David
Drake, in replying to the presen-
tation of the plaque, expressed
his appreciation and admiration
to the department, especially for
being friendly and hardworking.
Following this, Alladi presented a
plaque to William and Cynthia
Chandler for providing funds to
continue the Thompson post-
doctoral position for a 3 year
term beginning in 2008, to be
named the Thompson-Chandler
Research Assistant Professorship.
In presenting the plaque, Alladi
explained that Professor Timothy
Olson had been talking with
his friend William Chandler, a
contractor, when the opportunity
for Chandler to help the depart-
ment by contributing toward the
continuation of this postdoc had
arisen and Chandler decided to
make the contribution. In addition
to the plaque, Mr. Chandler was
presented with a UF tie and Mrs.
Chandler with a UF scarf by Alladi.
Chandler took the occasion to
remark that while he was just a
contractor and a straight B stu-
dent in college, that his wife had
a masters degree in English from
UF Alladi also presented Olson
with an orange and blue necktie
to mark his enthusiastic efforts on
behalf of the department. A cake
was at hand to mark these last
presentations, cut by the Chan-
dlers and David Drake.

Little by Little, the newsletter of the Department of Mathematics at the University of Florida, Volume 20, Issue 1, Spring 2007 9



As always the staff prepared a bountiful buffet spread for the an-
nual Christmas party

Newsletter editor Paul Ehrlich presented the custodians with their
annual gifts from the staff and faculty

7 -;r-:" rr

Professor Rick Smith roasted the Chair Krlshna Alladl with a present
commemorating the turbulent events of the fall semester, 2006 and
th-? ff Tr-? E y, t- -,r no- thI, 1 rI_ tm- rtl -i"

The audience, including Graduate Research Professor John
Thompson and Distinguished Professor John Klauder, enjoyed Rick's
roasting of the chair

Undergraduate Coordinator Professor David Groisser recognized
Bradford Barker, a math and physics major, for his receipt of a
Goldwater Scholarship at the Annual Appreciation Day

Next, Groisser recognized undergraduate students Michael Segal
and Ryan Flynn for their participation as University Scholars in this
undergraduate research program

Professor Bill Hager, faculty advisor for the SIAM Gators, presented a
certificate to club president Juan Liu

William and Cynthia Chandler, donors of funds for the Thompson-
Chandler Research Assistant Professorship, along with their friend
Professor Tim Olson, who spearheaded the donation, at the
App at on Tea

Chair Alladl recognized staff members Clerk Typist/Receptionist
Constance Doby (for 5 years service), Grants Assistant Margaret
Somers (for 5 years service), and Senior Word Processing Operator
Marie Hahn (for 10 years service) Graduate Secretary Gretchen Gar-
rett (not shown) was also recognized for 10 years service

Professors Jay Gopalaknshnan and Krishna Alladi with Grants
Assistant Margaret Somers, who was presented with a plaque
recognizing her UF Superior Accomplishment Award

Chair Alladl presented retiree Professor David Drake (shown also
with his wife Donna Born) with a plaque commemorating his
service to UF

Professor Kevin Keating, faculty advisor for the Putnam Competition Associate Chair Professor Jim Brooks presented certificates for
Team, presented Ryo Fujita with a certificate for his participation on excellence in teaching to graduate students Minah Oh, Juan Liu,
the team, during the Annual Appreciation Day, April 26, 2007 and Ryan Sankarpersad

Donors William and Cynthia Chandler cutting a cake at the conclu-
sion of the Appreciation Day tea recognizing their generous endow-
ment of the Thompson-Chandler Research Assistant Professorship

10 Little by Little, the newsletter of the Department of Mathematics at the University of Florida, Volume 20, Issue 1, Spring 2007

by Jean Larson

The Department of Mathematics has lost AI Bednarek, a long term chair, who
brought Stan Ulam to Florida as a Graduate Research Professor.

Bednarek was born July 15, 1933 in Buffalo,
New York. After two years in the US Army, he
went to SUNY Albany, where he graduated
Magna Cum Laude with a bachelor's degree in
1957. He then went to SUNY Buffalo, where
he earned his Ph.D. in 1961. After working at
Goodyear Aerospace at what he called "pre-
ventive mathematics" followed by a stint at
Akron State, he joined the University of Florida
in 1963 at the invitation of A.D. Wallace, who
had met and spoken with him in January 1963
at the Annual Meeting of the American Math-
ematical Society.
For the 1967-1968 academic year,
Bednarek served as secretary for a recruitment
committee at UF while the chair, A.D. Wal-
lace, was on leave at the University of Miami.
He described the experience as "mind-bog-
gling", saying "we hired 17 faculty members
and 5 postdoctoral fellows-all sight unseen."
Brooks, Drake, Keesling and Varma became
full professors from that group of recruits.
Bednarek served as chair of the depart-
ment from 1969-1986, and then again briefly
in 1988. He was ably assisted for several years
by Professor Zoran Pop-Stojanovic as Associ-
ate Chair and by Professor Chuck Nelson as
Undergraduate Coordinator.
When he started as chair, the Fall 1969
enrollment at the university was 20,769 stu-

dents and by Fall 1988, it had grown to 35,899
students. By way of comparison, in Fall 2006,
there were 51,520 students. A partial measure
of growth in the size of the mathematics over
the years may be provided by considering the
total number of assistant, associate and full
professors (but not including those of visiting
rank). During Kokomoor's chairmanship (1955-
1956), Maxfield's chairmanship (1965-1966),
and Bednarek's chairmanship (1985-1986), the
departmental totals of these three faculty ranks
were 12, 33, and 41, respectively.
During Professor Bednarek's long term in
office, there were several significant develop-
ments. The great Stan Ulam was appointed
Graduate Research Professor in 1975 and held
that position until his death in 1984. Ulam's
presence attracted several top mathematicians
as regular visitors, most notably Paul Erd6s,
who continued to visit even after Ulam died.
The eminent combinatorialist Gian Carlo Rota
(MIT) and the well-known analyst Lamberto
Cesari (Michigan) were regular visitors during
that time. It was also during the Bednarek-Ulam
period that the Center for Applied Mathemat-
ics was started. Professor Rudolf Kalman's
appointment as Graduate Research Professor
in Mathematics and Engineering also took
place during the Bednarek era. With Profes-
sor Kalman's appointment, the Center for

Mathematical Systems Theory was created, and
this center brought a steady stream of visiting
researchers to the Department. Professor John
Thompson started his association with the
department in 1986 as a Graduate Research
Professor appointed for the Fall term.
Bednarek published numerous academic
papers and co-edited the Proceedings of the
First and Second International Symposia on Dy-
namical Systems held at the University of Florida
in 1976 and 1981. He was a member of Sigma
Xi and the Polish Institute of Arts and Sciences.
His doctoral students were Marcus Mott
McWaters (1966), Eugene Michael Nor-
ris (1969), Dennis Raymond Anson (1971),
Esther Lee Kinsley Sanders (1975), Fay A.
Riddle (1978), Carolyn Johnson (1980) and
Robert Osteen (1980).
After a battle with cancer, Alexander
Bednarek died on March 19, 2007. He was an
accomplished jazz musician and avid golfer. He
had a wonderful sense of humor, which light-
ened the atmosphere during happy times and
difficult ones. We request his friends, associates
and former colleagues to share their memories,
which, with permission, we will post on the

by Paul Ehrlich
Professor John Kenelly, Ph.D. 1961, retired from
Clemson and serving as Treasurer of the Math-
ematical Association of America, reports that the
4th edition of his book Calculus Concepts has
been published by Houghton Mifflin.
Dr. Donald Cook, B.S. 1960, MA 1964,
writes from Albany, Georgia that "in the words
of Paul Ehrlich, I am an alumnus of the Maxfield
era. I was awarded the Ph.D. from New Mexico
State University in 1968. After retiring in 1998,
I've been writing in the history of mathematics,
photography, and conservation."
Jim Marshall, B.S. 1967, is a software engi-
neer at the U.S. Office of Personnel Management
in Washington, D.C.
Diane Y. Schliefstein, B.A. 1973, reports
that she has relocated as a result of Hurricane
Katrina from the Lakeview area of New Orleans
to Metarie. Her UF diploma was lost in the flood
waters, but the University sent her a replacement.
Veronica Yates-Riley, B.S. 1988, reports
that she was the recipient of the 2006-2007 Or-
ange County Public Schools Mathematics Teacher
of the Year in Orlando.
Professors Zoran Vondracek, Ph.D. 1990,
and Hrvoje Sikic, Ph.D. 1993, of the University
of Zagreb visited the department in March 2007.
Vondracek lectured on "On infima of Levy pro-

cesses and applications in risk theory" and Sikic
spoke on "Shift invariants of spaces and bases."
Professor Charles Lindsey, Ph.D. 1988,
currently at the Florida Gulf Coast University, is
one of two candidates for the position of Gov-
ernor of the Florida Section of the Mathematical
Association of America. Lindsey's current interests
include the history of mathematics and computa-
tional finance.
Professor Leon Couch III, B.A. 1992,
Ph.D. in music, University of Cincinnati, 2003,
has released the CD "Hamburger Rhetorik" on
the ProOrgano label (CD 7166). This recording
features the organ music from Hamburg with
performances of free and chorale-based works
by Dietrich Buxtude, his contemporaries, and his
Professor Tony Shaska, Ph.D. 2001, is
now an assistant professor in the Department of
Mathematics and Statistics at Oakland University
in Rochester, Michigan.
Dr Sergei Melikov, Ph.D. 2004, of the
Steklov Institute in Moscow has been awarded a
postdoctoral position at the University of Tennes-
see in Knoxville for 2007-2008.
Dr Daniel Warren, Ph.D. 2005, has
received a Ross Assistant Professorship at Ohio
State University.

Dr. Sheshadri Thiruvenkadam, Ph.D.
2005, has completed 2 years of his 3 year post-
doctoral appointment at UCLA. He writes that he
is "working on variational energy based models
for some interesting problems in computer vision,
graphics, and brain surface parametrization." He
also has mentored graduate student research and
been involved in writing two grant proposals. He
plans to take a research position in industry at the
conclusion of his postdoc.
We are pleased to be able to report that
two of our Ph.D. alumni were married in August
2006-Drs. Zia Uddin and Adriana Nenciu. Zia
is currently at the University of Wisconsin-Plat-
teville and Adriana at the University of Wisconsin-
Dr. Pengwen Chen, Ph.D. 2007, has
received an offer of a post-doctoral appointment
at the University of Connecticut.
Dr. Weihong Guo, Ph.D. 2007, has ac-
cepted a tenure track position at the University of
Alabama. Guo also received a postdoctoral offer
at the Institute for Pure and Applied Mathematics
at UCLA.
Dr. Juan Liu, Ph.D. 2007, has received a job
offer from Capital One Financial.

Little by Little, the newsletter of the Department of Mathematics at the University of Florida, Volume 20, Issue 1, Spring 2007 11


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Department of Mathematics
Little by Little Newsletter
Editor: Paul Ehrlich
Contributing Editor: Jean Larson
Copy Editor: Christopher Garland
Design & Production: Jane Dominguez

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