Computational model of cardiac cycle driven brain pulsation: a novel tool for brain disease exploration
Collier, A Haste, P Hayman, E Rezayaraghi, F Lam, T Waters, S Kurt, M Jerusalem, A Computers in Biology and Medicine volume 197 issue A (28 Aug 2025)
Tue, 11 Nov 2025
16:00
C3

Fixed Points of the Berezin Transform on Fock-Type Spaces

Ghazaleh Asghari
(University of Reading)
Abstract

We study the fixed points of the Berezin transform on the Fock-type spaces F^{2}_{m} with the weight e^{-|z|^{m}}, m > 0. It is known that the Berezin transform is well-defined on the polynomials in z and \bar{z}. In this talk from Ghazaleh Asghari from Reading University, we focus on the polynomial fixed points and we show that these polynomials must be harmonic, except possibly for countably many m \in (0,\infty). We also show that, in some particular cases, the fixed point polynomials are harmonic for all m.

Tue, 04 Nov 2025
16:00
C3

Cuntz-Pimsner algebras of homeomorphisms twisted by vector bundles

Aaron Kettner
(Institute of Mathematics, Czech Academy of Sciences)
Abstract

In this talk, Aaron Kettner, Institute of Mathematics, Czech Academy of Sciences, will show how to construct a C*-correspondence from a vector bundle together with a (partial) homeomorphism on the bundle's base space. The associated Cuntz-Pimsner algebras provide a class of examples that is both tractable and potentially quite large. Under reasonable assumptions, these algebras are classifiable in the sense of the Elliott program. If time permits, Aaron will sketch some K-theory calculations, which are work in progress.

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