Edge colored hypergraphic arrangements
Algebraic Topology
2009-03-26 v1 Combinatorics
Abstract
A subspace arrangement defined by intersections of hyperplanes of the braid arrangement can be encoded by an edge colored hypergraph. It turns out that the characteristic polynomial of this type of subspace arrangement is given by a generalized chromatic polynomial of the associated edge colored hypergraph. The main result of this paper supplies a sufficient condition for the existence of non-trivial Massey products of the subspace arrangements complex complement. This is accomplished by studying a spectral sequence associated to the Lie coalgebras of Sinha and Walter.
Cite
@article{arxiv.0903.4221,
title = {Edge colored hypergraphic arrangements},
author = {Matthew Miller and Max Wakefield},
journal= {arXiv preprint arXiv:0903.4221},
year = {2009}
}
Comments
17 pages, to appear in Pure and Applied Mathematics Quarterly