Printable PDF
Department of Mathematics,
University of California San Diego

****************************

Math 269 - Seminar in Combinatorics

Dr. Akihiro Miyagwa

UC San Diego

Q-deformation of independent Gaussian random variables in non-commutative probability

Abstract:

In 1970, Frisch and Bourret introduced a q-deformation of independent Gaussian random variables (say "q-Gaussian system"). In one-variable case, q-Gaussian is the distribution whose orthogonal polynomials are q-Hermite polynomials, and this distribution interpolates between Rademacher (q=-1), semicircle (q=0), Gaussian (q=1) distribution. In multivariable case, q-Gaussian system is represented as a tuple of operators (which are non-commutative in general) on the q-deformed Fock space introduced by Bożejko and Speicher. 

In this talk, I will explain related combinatorics (pair partitions and number of crossings) and analysis for q-Gaussian system. 

January 7, 2025

2:00 PM

APM 7321

Research Areas

Combinatorics

****************************