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Department of Mathematics Seminars and Talks

 
Seminar

Analysis & Applied Math

Talk Information
Title
Boundary integral methods, eigenvalues and computational spectral geometry
Start date and time
14:10 on Friday November 06, 2026
Duration in minutes
50 (until 15:00 on Friday November 06, 2026)
Room
BA6183, Bahen Center, 40 St. George St.
Streaming link
Streaming password
External video link
Abstract

Computing eigenpairs of constant elliptic operators for all but the simplest domains is a challenging task. We'd like to compute eigenpairs to high accuracy, and we'd like to do this efficiently. In this talk, we'll survey a rather natural approach via boundary integral operators, which reduces the (volumetric) eigenproblem to a problem on the boundary. We'll show how this approach can be used for domains with smooth boundary as well as polygonal domains. We'll then describe some questions in spectral geometry which can be explored with this method. While the talk focuses on problems in the plane, the approach generalizes readily to $\mathbb{R}^3$.

Background info

Nilima also has some super-cool research "Skeletal muscles: modeling and simulation" that she'd be happy to discuss with anyone who asks. :)

Speaker Information
Full Name
Nilima Nigam
Institution
Simon Fraser University
Institution URL