Palestras e Seminários
29/06/2022
14:00
Online / à distância
Palestrante: Alessandra Verri
Responsável: Phillipo Lappicy (Este endereço de email está sendo protegido de spambots. Você precisa do JavaScript ativado para vê-lo.)
Webinar on Evolution Equations and Dynamical Systems
Resumo: Let −∆DΩ be the Dirichlet Laplacian in a three dimensional waveguide Ω. If Ω is bounded, it is known that the spectrum of −∆DΩ is purely discrete. The situation changes when Ω is unbounded. For example, if Ω is a straight infinite waveguide, the operator −∆DΩ does not have discrete eigenvalues. However, local deformations in Ω can create them. In this talk some constructions for Ω will be presented to show how its geometry can affect the spectral behavior of −∆DΩ . In particular, when Ω is a broken sheared waveguide, we will show that the discrete spectrum is non empty.
Os interessados na palestra podem acessar o link e o calendário do grupo em https://sites.google.com/usp.br/evol-eq-and-dyn-systems
