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Mathematics/Computer Science Colloquium

Daniel Kane
Stanford University
Title: Diffuse Decompositions of Polynomials

Abstract: We study some problems relating to polynomials evaluated either at random Gaussian or random Bernoulli inputs. We present a structure theorem for degree-d polynomials with Gaussian inputs. In particular, if p is a given degree-d polynomial, then p can be written in terms of some bounded number of other polynomials q_1,...,q_m so that the joint probability density function of q_1(G),...,q_m(G) is close to being bounded. This says essentially that any abnormalities in the distribution of p(G) can be explained by the way in which p decomposes into the q_i. We then present some applications of this result.

Date: Wednesday, March 19, 2014
Time: 4:30 pm
Location: Wean Hall 7500
Submitted by:  Bohman
Note: Refreshments at 4:00 pm, Wean Hall 6220