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Cohomology in algebra, geometry, physics and statistics

usually takes place every Wednesday at 11:30 AM Institute of Mathematics of ASCR, Žitná 25, Praha 1, konírna
Chair: Anton Galaev, Roman Golovko, Igor Khavkine, Alexei Kotov, Hong Van Le and Petr Somberg

In this seminar we shall discuss topics concerning constructions and applications of cohomology theory in algebra, geometry, physics and statistics. In particular we shall discuss in first four seminars the relations between vertex algebras and foliations on manifolds, Gelfand-Fuks cohomology on singular spaces, cohomology of homotopy Lie algebras. The expositions should be accessible for all participants.

Linking: causality and black holes; and cosmic censorship of smooth structures
Vladimir Chernov
Dartmouth College
Wednesday, 1. December 2021 - 11:30 to 12:30
in IM building, ground floor + ZOOM meeting
Two events in a spacetime are called causally related if the information can get from one event point to the other.
 
In the joint works with Stefan Nemirovski we established that Legendrian linking of the spheres of light rays passing through the two points completely determines causality for spacetimes of dimensions greater or equal than 4. For the spaces times of dimension 3 causal structure is completely determined by topological linking.
 
These results settle the... more

TBA
Ha Quang Minh
RIKEN Institute, Tokyo
Wednesday, 24. November 2021 - 11:30 to 12:30
ZOOM meeting
TBA

TBA
Dmitri Alekseevsky
Institute for Information Transmission Problems, Moscow
Wednesday, 10. November 2021 - 11:30 to 12:30
ZOOM meeting
TBA

TBA
Arthur J. Parzygnat
IHES, Paris
Wednesday, 3. November 2021 - 11:30 to 12:30
ZOOM meeting
TBA

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