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This page contains a list of Mathematics and Computer Science seminars
for the current semester. Links to previous semesters can be found at
the bottom of the page.
Spring 2008
Algebra Seminar
Analysis Seminar
Topology-Geometry Seminar
Math & CS Club
Algebra Seminar
Thursdays, 2:10 - 3:00 in Ritter Hall 128
| DATE |
SPEAKER |
TITLE |
January 31
|
Bryan Clair
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"Zeta functions of graphs"
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Abstract: This will be a
two-part lecture. The first day will consist of
motivations, definitions, and applications, particularly the
relationship with expander graphs and Ramanujan graphs. The
second will be about infinite graphs and in particular "periodic
graphs" which are equipped with Z-actions.
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February
7
|
Bryan Clair |
"Zeta functions of graphs II"
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| February 14 |
Bryan
Clair |
"Zeta functions of graphs III"
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February 21 1:00 -
1:50 pm
|
Greg
Marks |
"Skew generalized power
series rings and right annihilator lattices." |
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Analysis Seminar
Tuesdays, 2:10 - 3:00 in Ritter Hall 30
Further
information: Analysis Seminar Page
| DATE |
SPEAKER
|
TITLE |
January 22
|
Eugenio Hernández (Universidad
Autónoma de Madrid)
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"Democracy for a collection of
translates of a function."
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| Abstract:The democratic
property of a basis in a Banach space is closely related
to the near-best approximation property of the basis for N-term
non-linear approximation. Also, principal shift invariant subspaces in L2(R)
are central in the theory of wavelets. These are generated by the
integer translates of a function in L2(R). We will
study under which conditions the system of integer translates of a
function is a democratic collection in L2(R). The
problem is still unsolved. |
January 29
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Brody Johnson
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"Non-linear approximation
with dual frames."
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February 5
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Brody Johnson
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"Non-linear approximation
with dual frames."
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February 19
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Chun-Yen Shen (Indiana
University)
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"Explicit sum-product estimates
of different sets in finite fields."
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| Abstract: The sum-product
phenomenon has received a great deal of attention,
since Erd\"{o}s and Szemer\`{e}di made their well known conjecture that
$\max(|A+A|,|AA|) \geq C_{\epsilon} |A|^{2-\epsilon} \forall \epsilon
> 0.$ where $A$ is a finite subset of integers and $A+A=\{a+b: a \in
A, b \in A \},$ and $AA=\{ab: a \in A, b \in A \}.$ In this talk ,we
will discuss the analogy results in finite fields and its applications.
In particular, we address how to use Garaev's inequalities to get
quantitative sum-product estimates in finite fields and how Fourier
analysis could be applied to attack these kinds of problems. |
February 26
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Tom
McNamara
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"Group
Representations and Special Functions."
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Topology-
Geometry Seminar
Thursdays, 3:10 - 4:00 in Ritter Hall 320
Math
& CS Club
Wednesdays, 4:10 - 5:00 in Ritter Hall 142
See the Math and CS Club
Page for events and times.
Previous Semesters:
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