Coloquio Especial
Singular spectrum under large perturbations of self-adjoint operators.
Ponente: Eero Saksman (Universidad de Helsinki)Fecha: viernes 06 de noviembre de 2026 - 10:00Lugar: Aula Naranja, ICMAT
Resumen:
We give a gentle review of some well-known basic results in classical perturbation theory of self-adjoint operators, for example concerning 1-dimensional perturbations. Finally, we discuss some recent results on the behaviour of the singular spectrum in a new setup, where we allow the perturbations to be even of non-trace class. The talk is based on a joint work with Constanze Liaw (U. Delaware) and Sergei Treil (Brown U.)
Más información:
