North Atlantic Noncommutative Geometry Seminar

16 kwietnia 2025 17:15
ROBERTA ISEPPI (Georg-August-Universität Göttingen, Germany)
FIRST STEPS TOWARDS THE QUANTISATION OF THE SPECTRAL ACTION: THE BATALIN-VILKOVISKY CONSTRUCTION OF FINITE SPECTRAL TRIPLES (FIRST STEPS TOWARDS THE QUANTISATION OF THE SPECTRAL ACTION: THE BATALIN-VILKOVISKY CONSTRUCTION OF FINITE SPECTRAL TRIPLES)

9 kwietnia 2025 17:15
IVÁN RUIZ CAMPOS (Universidad de Málaga, Spain)
ASSOCIATIVE COMMUTATIVE REPRESENTATIONS OF EVOLUTION ALGEBRAS IN DIMENSION TWO (ASSOCIATIVE COMMUTATIVE REPRESENTATIONS OF EVOLUTION ALGEBRAS IN DIMENSION TWO)

2 kwietnia 2025 17:15
MARIUSZ TOBOLSKI (Uniwersytet Wrocławski, Poland)
GLUING TOPOLOGICAL-GRAPH C*-ALGEBRAS (GLUING TOPOLOGICAL-GRAPH C*-ALGEBRAS)

26 marca 2025 17:15
ŁUKASZ KACZMARCZYK (Uniwersytet Warszawski, Poland)
INFORMATION GEOMETRY OF BAYESIAN UPDATING AND REPLICATION (INFORMATION GEOMETRY OF BAYESIAN UPDATING AND REPLICATION)

19 marca 2025 17:15
GÁBOR ETESI (Budapesti Műszaki és Gazdaságtudományi Egyetem, Hungary)
AN OPERATOR ALGEBRAIC CHARACTERIZATION OF THE VACUUM EINSTEIN EQUATION IN FOUR DIMENSIONS (AN OPERATOR ALGEBRAIC CHARACTERIZATION OF THE VACUUM EINSTEIN EQUATION IN FOUR DIMENSIONS)

12 marca 2025 17:15
JACOPO BASSI (MPAN, Warszawa, Poland)
ON ISOMETRIES FOR SPECTRAL TRIPLES ON AF ALGEBRAS (ON ISOMETRIES FOR SPECTRAL TRIPLES ON AF ALGEBRAS)

5 marca 2025 17:15
MARCELO LACA (University of Victoria, Canada)
A HIGH-TEMPERATURE PHASE TRANSITION FROM NUMBER THEORY (A HIGH-TEMPERATURE PHASE TRANSITION FROM NUMBER THEORY)

26 lutego 2025 17:15
ARNAUD BROTHIER (Università di Trieste, Italy & UNSW Sydney, Australia)
MODULI OF REPRESENTATIONS OF THE CUNTZ ALGEBRA OBTAINED VIA VAUGHAN JONES TECHNOLOGY (REPRESENTATIONS OF THE CUNTZ ALGEBRA OBTAINED VIA VAUGHAN JONES TECHNOLOGY)

22 stycznia 2025 17:15
CARLA FARSI (University of Colorado, Boulder, USA)
METRIC LIMITS OF SPECTRAL TRIPLES AND NONCOMMUTATIVE PRINCIPAL G-BUNDLES (METRIC LIMITS OF SPECTRAL TRIPLES AND NONCOMMUTATIVE PRINCIPAL G-BUNDLES)
The spectral propinquity, a generalization of the Gromov-Hausdorff distance to the realm of noncommutative geometry, is a distance on metric spectral triples developed within the framework of metric noncommutative geometry by Latrémolière. Metric spectral triples …

15 stycznia 2025 17:15
RYSZARD NEST (Københavns Universitet, Denmark)
AUTOMORPHISMS OF THE BOUTET DE MONVEL ALGEBRA (AUTOMORPHISMS OF THE BOUTET DE MONVEL ALGEBRA)

8 stycznia 2025 17:15
TOMASZ MASZCZYK (Uniwersytet Warszawski, Poland)
THE CLIFFORD-DIRAC QUANTIZATION OF THE DE RHAM COMPLEX (THE CLIFFORD-DIRAC QUANTIZATION OF THE DE RHAM COMPLEX)
We show that the de Rham complex is a degeneration of a one parameter family of filtered Z/2Z-graded algebras with a degree one almost derivation that are generically isomorphic to the Clifford algebra equipped with …

18 grudnia 2024 17:15
PALLE JORGENSEN (University of Iowa, Iowa City, USA)
q-CANONICAL COMMUTATION RELATIONS AND THE STABILITY OF THE CUNTZ ALGEBRA (q-CANONICAL COMMUTATION RELATIONS AND THE STABILITY OF THE CUNTZ ALGEBRA)
Motivated by questions from quantum physics, we study commutation relations with a deformation parameter q. The case q=0 yields the Cuntz relations and the Cuntz algebra. We show that there are C*-isomorphisms for values of …

11 grudnia 2024 17:15
BENJAMIN ANDERSON-SACKANEY (University of Saskatchewan, Saskatoon, Canada)
C*-SIMPLICITY AND BOUNDARY ACTIONS OF DISCRETE QUANTUM GROUPS (C*-SIMPLICITY AND BOUNDARY ACTIONS OF DISCRETE QUANTUM GROUPS)
A group is C*-simple if its reduced C*-algebra is simple. Two of the most historically important notions used for proving a group is C*-simple are Powers’ averaging property and topologically free boundary actions. These techniques …

4 grudnia 2024 17:15
MATTHEW KENNEDY (University of Waterloo, Canada)
INTERMEDIATE SUBALGEBRAS FOR REDUCED CROSSED PRODUCTS OF DISCRETE GROUPS (INTERMEDIATE SUBALGEBRAS FOR REDUCED CROSSED PRODUCTS OF DISCRETE GROUPS)

27 listopada 2024 17:15
DIMITRIS M. GERONTOGIANNIS (IMPAN, Warszawa, Poland)
THE log-LAPLACIAN ON AHLFORS REGULAR SPACES AND NONCOMMUTATIVE BOUNDARIES (THE log-LAPLACIAN ON AHLFORS REGULAR SPACES AND NONCOMMUTATIVE BOUNDARIES)