Generalized Bessel Functions in High Dimension

Thu Nov 16, 2023 4:00 p.m.—5:00 p.m.
Exterior of Sheffield-Sterling-Strathcona Hall featuring a stone carving of Yale's coat of arms and motto

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Seminar: 
Analysis

Event time: 
Thursday, November 16, 2023 - 4:00pm

Location: 
KT 219

Speaker: 
Colin McSwiggen

Speaker affiliation: 
NYU Courant

Event description: 
Many quantities of interest throughout mathematics are basically Bessel functions of a vector argument. As a result, natural asymptotic questions in various fields can be reduced to understanding the behavior of multivariable Bessel functions as the dimension of the domain grows large. In this talk, I’ll introduce the theory of generalized Bessel functions and describe how these functions form a useful link between subjects as diverse as random matrix theory, harmonic analysis and integrable systems. Then I’ll present a new result that characterizes the high-dimensional asymptotics of generalized Bessel functions by studying the hydrodynamics of associated stochastic processes. Joint work with Jiaoyang Huang