Seminar «Combinatorics, algebraic topology and volumes of polyhedral»
Seminar «Combinatorics, algebraic topology and volumes of polyhedral»
2020 The event passed
23 Apr
Location
Online
Contact person
Krasnov V.A.
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

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