2018
Apr
25

# Analysis Seminar: Latif Eliaz "The Essential Spectrum of Schroedinger Operators on Graphs"

12:00pm to 1:00pm

## Location:

Room 70, Ross Building

It is known that the essential spectrum of aSchrödinger operator H on\ell^2(\mathbb{N}) is equal to the union of the spectra of right limits ofH. The naturalgeneralization of this relation to \mathbb{Z}^n is known to hold as well.In this talk we study thepossibility of generalizing this characterization of \sigma_{ess}(H) tographs. We show that the general statement fails, while presenting natural families of models where it still holds.