English

Cup-products in generalized moment-angle complexes

Algebraic Topology 2010-08-31 v2 Algebraic Geometry

Abstract

Given a family of based CW-pairs (X,A)={(X;A)}i=1m(\underline{X},\underline{A})=\{(X;A)\}^m_{i=1} together with an abstract simplicial complex KK with mm vertices, there is an associated based CW-complex Z(K;(X,A))Z(K;(\underline{X},\underline{A})) known as a generalized moment-angle complex. The decomposition theorem of \cite{bbcg}, \cite{bbcg2} splits the suspension of Z(K;(X,A))Z(K; (\underline{X}, \underline{A})) into a bouquet of spaces determined by the full sub-complexes of KK. Thatdecomposition theorem is used here to describe the ring structure for the cohomology of Z(K; (\underline{X}, \underline{A})). Explicit computations are made for families of suspension pairs and for the cases where XiX_i is the cone on AiA_i. These results complement and generalize those of Davis-Januszkiewicz, Franz, Hochster as well as Panov, and Baskakov-Buchstaber-Panov. Under conditions stated below, these theorems also apply for generalized cohomology theories.

Keywords

Cite

@article{arxiv.1001.3372,
  title  = {Cup-products in generalized moment-angle complexes},
  author = {A. Bahri and M. Bendersky and F. R. Cohen and S. Gitler},
  journal= {arXiv preprint arXiv:1001.3372},
  year   = {2010}
}

Comments

An example is corrected

R2 v1 2026-06-21T14:36:44.129Z