Seminars Sorted by Series

Short Talks by Postdoctoral Members

Sep
21
2010

Short Talks by Postdoctoral Members

Extended Scaling Relations for Weak-Universal Models
2:30pm|S-101

I will introduce some example of models of Statistical Mechanics that are called 'weak-universal' and I will discuss the role of the extended scaling relations for the critical indexes. Finally I will mention some results and some works in progress...

Sep
27
2010

Short Talks by Postdoctoral Members

p-Adic Galois Representations and (\varphi,\Gamma)-Modules
2:15pm|S-101

We will explain the equivalences between p-adic Galois representations and various types of (\varphi,\Gamma)-modules.

Sep
30
2010

Short Talks by Postdoctoral Members

Sparce Approximation of PSD Matrices
2:15pm|S-101

I will discuss the problem of approximating a given positive semidefinite matrix A , written as a sum of outer products vv^T , by a much shorter weighted sum in the same outer products. I will then mention an application to sparsification of finite...