Seminar «Combinatorics, algebraic topology and volumes of polyhedral»

Seminar «Combinatorics, algebraic topology and volumes of polyhedral»

The event passed
23 Apr 2020
Location
Online
About the event

Speaker: Grigory Solomadin, RUDN University

Topic: «Lexicographical shelling of matroids; simplicial polytopes and g-theorem»

Abstract: In the next lecture we will introduce a particularly useful construction for shelling of matroids. In what follows, we advance to the study of combinatorics of polytopes. We will prove the Dehn-Sommerville relations on h-numbers of convex polytopes in Euclidean space by applying shellability concept. We will start to discuss the g-theorem, which describes the values of the f-vector on simplicial polytopes.

Online

Related eventsAll events
2023
11 Oct
Seminar “Dynamics of language endangerment: a comparison of three Northern Tungusic lects spoken in the Russian Federation”
2023
3 Oct
Seminar “Absence of nontrivial weak solutions, some nonlinear algorithms with gradient nonlinearity”
2023
3 Oct
Seminar “Mathematical modeling of nonequilibrium phase transformations in metastable media”
2023
4 Oct
Seminar “Environmental Protection in Agriculture”