ΤΜΗΜΑ ΜΑΘΗΜΑΤΙΚΩΝ

Seminar: Functional Analysis and Operator Algebras

Συναρτησιακή Ανάλυση και Άλγεβρες Τελεστών

Friday, March 12, 16:00 Athens time (UTC+2)

Title: Co-universal C*-algebras for product systems (second talk)

Speaker: Elias Katsoulis (East Carolina University, USA)

Abstract: In these talks we will present parts of the recent paper of A.…

Seminar: Functional Analysis and Operator Algebras

Συναρτησιακή Ανάλυση και Άλγεβρες Τελεστών

Friday, March 5, 16:00 Athens time (UTC+2)

Title: Co-universal C*-algebras for product systems

Speaker: Elias Katsoulis (East Carolina University, USA)

Abstract: In these talks we will present parts of the recent paper of A. Dor-On, E.…

Seminar: Functional Analysis and Operator Algebras

Συναρτησιακή Ανάλυση και Άλγεβρες Τελεστών

Friday, February 26, 16:00 Athens time (UTC+2)

Speaker: Mahya Ghandehari (U. Delaware)

Title: Fourier algebras of the group of R-affine transformations and a dual convolution.

 

Abstract: A major trend in Non-commutative Harmonic Analysis is…

Friday, February 19, 16:00 Athens time (UTC+2)

Speaker: Aristomenis Siskakis, Aristotle University of Thessaloniki

Title: The Hilbert matrix and its continuous version.

Abstract: We will recount some known results on the discrete Hilbert matrix as an operator on spaces of analytic functions, and will consider the continuous version of the…

Friday, January 22, 16:00 Athens time (UTC+2) (NEW TIME)

Speaker:Pandelis Dodos.

Title: High-dimensional random arrays. Structural decompositions and concentration. (second talk)

Abstract: A d-dimensional random array is a stochastic process indexed by the set of all d-element subsets of a set I. We shall discuss the structure of finite,…

Συναρτησιακή Ανάλυση και Άλγεβρες Τελεστών

Friday, January 15, 16:00 Athens time (UTC+2) (NEW TIME)

Speaker: Pandelis Dodos.

Title: High-dimensional random arrays. Structural decompositions and concentration.

Abstract: A d-dimensional random array is a stochastic process indexed by the set of all d-element subsets of a set I. We shall…

Seminar: Functional Analysis and Operator Algebras

Συναρτησιακή Ανάλυση και Άλγεβρες Τελεστών

Friday, January 8, 2021, 16:00 Athens time (UTC+2) (NEW TIME)

Speaker: Aristides Katavolos

Title: Harmonic Operators and Crossed Products.

Abstract: We study the space of  harmonic operators for a probability measure μ (or a family of…

Friday, December 18, 16:00 Athens time (UTC+2) (PLEASE NOTE NEW TIME)

Speaker: Kenneth R. Davidson, University of Waterloo.

Title: Noncommutative Choquet theory

We introduce a new framework for noncommutative convexity. We develop a noncommutative Choquet theory and prove an analogue of the Choquet-Bishop-de Leeuw theorem.

This is joint…

Seminar: Functional Analysis and Operator Algebras

Συναρτησιακή Ανάλυση και Άλγεβρες Τελεστών

Friday, December 11, 15:00 Athens time (UTC+2)

Speaker: Apostolos Giannopoulos, NKUA.

Title: Isoperimetric constants of metric probability spaces (2nd talk)

For Zoom meeting coordinates

and additional information see the seminar webpage

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Friday, December 4, 15:00 Athens time (UTC+2)

Speaker: Apostolos Giannopoulos, NKUA

Title: Isoperimetric constants of metric probability spaces

Abstract: In this first talk we shall introduce four isoperimetric constants (the Cheeger constant, the Poincare constant, the exponential concentration constant and the first moment concentration…