UofT Mathematics Logo

Department of Mathematics Seminars and Talks

 
Seminar

Analysis & Applied Math

Talk Information
Title
Extremal problems motivated by focusing NLS soliton condensates
Start date and time
14:00 on Friday November 21, 2025
Duration in minutes
60 (until 15:00 on Friday November 21, 2025)
Room
HSB614
Streaming link
Streaming password
External video link
Abstract

Given a finite subset $E \subset \mathbb{C}$, Chebotarev’s continuum problem consists in finding a continuum $K \subset \mathbb{C}$ of minimal logarithmic capacity that contains $E$. In this talk we will discuss a modification of Chebotarev’s problem, where $E$ and $K$ are subsets of $\mathbb{C}^+$ and where we minimize the Dirichlet energy of $\mathbb{C}^+ \setminus K$ instead of the logarithmic capacity of $K$. The later problem was motivated by study of focusing NLS soliton condensates of minimal intensity with prescribed endpoints of the spectral support set.

Speaker Information
Full Name
Alexander Tovbis
Personal website
Institution
University of Central Florida
Institution URL