Previous Conferences & Workshops

Nov
19
2013

Computer Science/Discrete Mathematics Seminar II

Interactive Channel Capacity
10:30am|S-101

In a profoundly influential 1948 paper, Claude Shannon defined the entropy function \(H\), and showed that the capacity of a symmetric binary channel with noise rate (bit flip rate) \(\mathrm{eps}\) is \(1-H(\mathrm{eps})\). This means that one can...

Nov
18
2013

Members’ Seminar

Interacting Brownian motions in the Kadar-Parisi-Zhang universality class
2:00pm|S-101

A widely studied model from statistical physics consists of many (one-dimensional) Brownian motions interacting through a pair potential. The large scale behavior of this model has has been investigated by Varadhan, Yau, and others in the 90's. As a...

Nov
18
2013

Computer Science/Discrete Mathematics Seminar I

Efficient reasoning in PAC semantics
Brendan Juba
11:15am|S-101

Machine learning is often employed as one step in a larger application, serving to perform information extraction or data mining for example. The rules obtained by such learning are then used as inputs to a further analysis. As a consequence of the...

Nov
15
2013

Joint IAS/Princeton University Symplectic Geometry Seminar

Calabi-Yau mirror symmetry: from categories to curve-counts
Tim Perutz
1:30pm|S-101

I will report on joint work with Nick Sheridan concerning structural aspects of mirror symmetry for Calabi-Yau manifolds. We show (i) that Kontsevich's homological mirror symmetry (HMS) conjecture is a consequence of a fragment of the same...

Nov
14
2013

Joint IAS/Princeton University Number Theory Seminar

Independence of \(\ell\) and local terms
4:30pm|S-101

Let \(k\) be an algebraically closed field and let \(c:C\rightarrow X\times X\) be a correspondence. Let \(\ell \) be a prime invertible in \(k\) and let \(K\in D^b_c(X, \overline {\mathbb Q}_\ell )\) be a complex. An action of \(c\) on \(K\) is by...

Nov
13
2013

Mathematical Conversations

Multiplying Integer Matrices
6:00pm|Dilworth Room

We will state a number of problems with completely different origins, and reformulate them in terms of questions about what happens when you multiply integer matrices. (In fancy words, these are called the "Affine Sieve" or a "Local-Global Principle...

Nov
13
2013

Princeton University Mathematics Department Colloquium

Tales of Our Forefathers
Barry Simon
4:30pm|Fine 314, Princeton University

This is not a mathematics talk but it is a talk for mathematicians. Too often, we think of historical mathematicians as only names assigned to theorems. With vignettes and anecdotes, I'll convince you they were also human beings and that, as the...