November 2007

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Friday, November 2, 2007 — 3:30 PM to 4:30 PM EDT

The Direct-Product Property, Subdistribution Bounds, and Applications

Speaker: Ashwin Nayak Affiliation: University of Waterloo Room: Mathematics & Computer Building (MC) 5158

Abstract:

Friday, November 9, 2007 — 3:30 PM to 4:30 PM EST

Are Most Graphs Determined by their Spectrum?

Speaker: Chris Godsil Affiliation: University of Waterloo Room: Mathematics & Computer Building (MC) 5158

Abstract:

The spectrum of a graph is the spectrum of its adjacency matrix. We will discuss the question raised in the title. At this point it is not even clear what the right conjecture is.

Friday, November 16, 2007 — 3:30 PM to 4:30 PM EST

New Nonlinear Functions for S-Boxes in Cryptography and their Fourier Transform

Speaker: Gary McGuire Affiliation: University College Dublin Room: Mathematics & Computer Building (MC) 5158

Abstract:

Friday, November 23, 2007 — 3:30 PM to 4:30 PM EST

Greedy Algorithms and Complexity for Nonnegative Matrix Factorization

Speaker: Steve Vavasis Affiliation: University of Waterloo Room: Mathematics & Computer Building (MC) 5158

Abstract:

Friday, November 30, 2007 — 3:30 PM to 4:30 PM EST

The Resolution Complexity of Random Constraint Satisfaction Problems

Speaker: Mike Molloy Affiliation: University of Toronto Room: Mathematics & Computer Building (MC) 5158

Abstract:

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