Postdoctoral Short Talks 2009-10

Short Talks by Postdoctoral Members

October 02, 2009 | 2:00pm - 3:00pm

In this short talk I will formulate a functorial desingularization theorem for qe schemes of characteristic zero and explain why this result implies desingularization in other categories including formal schemes and analytic spaces. If time permits...

Short Talks by Postdoctoral Members

October 02, 2009 | 2:00pm - 3:00pm

I will discuss the relation between: (a) the Weak Regularity Lemma of Frieze and Kannan, a result in graph theory, (b) the "Dense Model Theorem" of Green, Tao and Ziegler, a result in additive combinatorics, that helps transfer results about dense...

Short Talks by Postdoctoral Members

September 30, 2009 | 4:00pm - 5:00pm

Let s(n) denote the sum of the proper divisors of the natural number n. We call n *perfect* if n = s(n) and *amicable* if n = s(s(n) . We discuss some old problems and recent results related to perfect numbers, amicable numbers, and their...

Short Talks by Postdoctoral Members

September 30, 2009 | 2:00pm - 3:00pm

In the lecture I will explain how various fundamental structures from group representation theory appear naturally in the context of discrete harmonic analysis and can be applied to solve concrete problems from digital signal processing. We will...