Regular CW-complexes and poset resolutions of monomial ideals
Commutative Algebra
2013-10-10 v1
Abstract
We use the natural homeomorphism between a regular CW-complex X and its face poset P_X to establish a canonical isomorphism between the cellular chain complex of X and the result of applying the poset construction of arXiv:0806.4532v1 to P_X. For a monomial ideal whose free resolution is supported on a regular CW-complex, this isomorphism allows the free resolution of the ideal to be realized as a CW-poset resolution. Conversely, any CW-poset resolution of a monomial ideal gives rise to a resolution supported on a regular CW-complex.
Keywords
Cite
@article{arxiv.1310.2315,
title = {Regular CW-complexes and poset resolutions of monomial ideals},
author = {Timothy B. P. Clark and Alexandre Tchernev},
journal= {arXiv preprint arXiv:1310.2315},
year = {2013}
}