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 Events
Pontifical Catholic University of Chile (PUC)
Tue 24 Nov 2020, 3:30pm
Diff. Geom, Math. Phys., PDE Seminar
Online
Quantization of edge currents along magnetic interfaces: A K-theory approach
Online
Tue 24 Nov 2020, 3:30pm-4:30pm

Abstract

The purpose of this talk is to explain how to describe the propagation of topological currents along magnetic interfaces (also known as magnetic walls) of a two-dimensional material using K-theory. We initially consider tight-binding magnetic models associated with generic magnetic multi-interfaces and we will describe the K-theoretical setting in which a bulk-interface duality can be derived. Then,  we will focus on  the (non trivial) case of the Iwatsuka magnetic field. The exposition is intended to be pedagogical and aimed at a non-specialist audience.
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Vitali Vougalter
University of Toronto
Tue 12 Jan 2021, 3:30pm
Diff. Geom, Math. Phys., PDE Seminar
Zoom
Solvability of some integro-differential equations with anomalous diffusion in higher dimensions
Zoom
Tue 12 Jan 2021, 3:30pm-4:30pm

Abstract

The work deals with the studies of the existence of solutions
of an integro-differential equation in the case of the anomalous diffusion
with the negative Laplace operator in a fractional power in R^d, d=4,5.
The proof of the existence of solutions relies on a fixed point technique.
Solvability conditions for non Fredholm elliptic operators in unbounded
domains are used.
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UC Irvine
Thu 18 Mar 2021, 3:30pm SPECIAL
Diff. Geom, Math. Phys., PDE Seminar
TBA
TBA
TBA
Thu 18 Mar 2021, 3:30pm-4:30pm

Abstract

 
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