Graeme Segal

TBA

December 17, 2021
15:00
EST
Organized by Americas GNCG Seminar.
Chao Li

TBA

December 3, 2021
15:00
EST
Organized by Americas GNCG Seminar.
Gilles de Castro

TBA

November 19, 2021
15:00
EST
Organized by Americas GNCG Seminar.
Sophie Mikkelsen

TBA

November 17, 2021
14:00
CET
Organized by Europe GNCG Seminar.
Dustin Clausen
TBA…
November 12, 2021
15:00
EST Toronto
Organized by Americas GNCG Seminar.
Ernesto Lupercio

TBA

November 5, 2021
15:00
EST
Organized by Americas GNCG Seminar.
Kasia Rejzner

TBA

November 3, 2021
14:00
CET
Organized by Europe GNCG Seminar.
Inna Zakharevich
TBA…
October 22, 2021
15:00
EST (Toronto)
Organized by Americas GNCG Seminar.
Benjamin Steinberg
 In the seventies, Feldman and Moore studied Cartan pairs of von Neumann algebras. These pairs consist of an algebra A and a…
October 8, 2021
15:00
EST
Organized by Americas GNCG Seminar.
Giles Gardam
The Kadison–Kaplansky conjecture states that the reduced C*-algebra of a torsion-free discrete group has no idempotents other than 0…
September 17, 2021
15:00
EST (Toronto)
Organized by Americas GNCG Seminar.
Alain Connes
I will analyze two fundamental “spaces” using the paradigms of spectral and of algebraic geometry. The spectral paradigm is…
September 3, 2021
15:00
EST (Toronto)
Organized by Americas GNCG Seminar.
Lachlan MacDonald
 Chern-Weil theory describes a procedure for constructing the characteristic classes of a smooth manifold from geometric data (such as…
June 21, 2021
09:00
UTC
Organized by Asia-Pacific GNCG Seminar.
Chi-Keung Ng
Motivated by quantum states with zero transition probability, we introduce the notion of ortho-set which is a set equipped…
June 9, 2021
14:00
CEST
Organized by Europe GNCG Seminar.
Alain Connes
This is joint work with C. Consani. When contemplating the low lying zeros of the Riemann zeta function one…
June 2, 2021
17:15
CEST
Organized by Americas GNCG Seminar.
Romain Tessera
In a joint work with Anthony Genevois, we classify up to quasi-isometry the class of lamplighter groups over one-ended finitely…
May 31, 2021
11:00
CEST
Organized by Asia-Pacific GNCG Seminar.
Zhengwei Liu
Quantum Fourier Analysis is a subject that combines an algebraic Fourier transform (pictorial in the case of subfactor theory) with…
May 17, 2021
11:00
CEST
Organized by Asia-Pacific GNCG Seminar.
Matthew Kennedy
Recently, Davidson and I introduced a new framework for noncommutative convexity and noncommutative function theory, along with a corresponding…
May 5, 2021
16:00
CEST
Organized by Europe GNCG Seminar.
Ieke Moerdijk
Simplicial sets form a classical and well known tool for modelling topological spaces, and more recently topologically enriched categories…
April 23, 2021
14:00
EDT
Organized by Americas GNCG Seminar.
Adam Rennie
 I will outline efforts to describe the Kasparov product of two unbounded Kasparov modules in terms of another unbounded…
April 12, 2021
09:00
UTC
Organized by Asia-Pacific GNCG Seminar.
Omar Mohsen
Using techniques from noncommutative geometry, I will present a very general inhomogeneous pseudo-differential calculus which allows us to obtain…
April 5, 2021
11:00
CEST
Organized by Asia-Pacific GNCG Seminar.
Dan Voiculescu
The quasicentral modulus is a numerical invariant associated with a n-tuple of Hilbert space operators and a normed ideal of…
March 26, 2021
18:00
UTC
Organized by Americas GNCG Seminar.
Joachim Cuntz
Kasparov’s KK-theory which is based on so called Kasparov-modules can be described much more algebraically using universal extensions and classifying maps…
March 1, 2021
10:00
CET
Organized by Asia-Pacific GNCG Seminar.
Eckhard Meinrenken
The idea of assigning weights to local coordinate functions appears in many areas of mathematics, such as singularity theory,…
February 19, 2021
14:00
EST
Organized by Americas GNCG Seminar.
Sergiy Neshveyev
Given a C$^*$-algebra $A$ with an almost periodic time evolution we define a new C$^*$-algebra $A_c$ whose states parameterize…
February 16, 2021
15:00
CET
Organized by Europe GNCG Seminar.