Multipliers and Approximation Properties

Lyudmila Turowska (Chalmers University of Technology)

01-Sep-2021, 19:00-20:00 (3 years ago)

Abstract: One can encode various properties of locally compact groups from properties of Banach algebras associated to the groups and vice versa. In this talk I will explain how Herz-Schur multipliers have been used to study some of those properties. Then I will talk about generalization of such multipliers to the setting of dynamical systems and explain how the technique of Herz-Schur multipliers can be extended to study approximation properties of crossed product C*-algebras. I shall also discuss compact and completely compact multipliers.

geometric topologynumber theoryoperator algebrasrepresentation theory

Audience: researchers in the topic

( slides | video )


Noncommutative Geometry in NYC

Series comments: Noncommutative Geometry studies an interplay between spatial forms and algebras with non-commutative multiplication. Our seminar welcomes talks in Number Theory, Geometric Topology and Representation Theory linked to the context of Operator Algebras. All talks are kept at the entry-level accessible to the graduate students and non-experts in the field. To join us click sju.webex.com/meet/nikolaei (5 min in advance) and igor DOT v DOT nikolaev AT gmail DOT com to subscribe/unsubscribe for the mailing list, to propose a talk or to suggest a speaker. Pending speaker's consent, we record and publish all talks at the hyperlink "video" on speaker's profile at the "Past talks" section. The slides can be posted by providing the organizers with a link in the format "myschool.edu/~myfolder/myslides.pdf". The duration of talks is 1 hour plus or minus 10 minutes.

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