1 citations · 1 across the 3 of their papers we have counts for
3 papers
math.AT2015★ 1 cited
Twisted Simplicial Groups and Twisted Homology of Categories
J. Y. Li, V. V. Vershinin, J. Wu
Let be either a simplicial complex or a small category with as its set of vertices or objects. We define a twisted structure on with coefficients in…
math.GT2006
Yamada Polynomial and Khovanov Cohomology
V. Vershinin, A. Vesnin
For any graph G we define bigraded cohomology groups whose graded Euler characteristic is a multiple of the Yamada polynomial of G.
math.GR2005
On presentations of generalizations of braids with few generators
Vladimir Vershinin
In his initial paper on braids E.Artin gave a presentation with two generators for an arbitrary braid group. We give analogues of this Artin's presentation for various generalizati…