English

Resolution of the residue class field via algebraic discrete Morse theory

Commutative Algebra 2016-09-07 v1 Combinatorics

Abstract

Forman's Discrete Morse theory is studied from an algebraic viewpoint. Analogous to independent work of Emil Skoeldberg we show that this theory can be extended to chain complexes of free modules over a ring. We provide three applications of this theory: We construct new resolutions of the residue class field kk over AA, where AA is the quotient of a (i) commutative polynomial ring or (ii) non-commutaitve polynomial ring by a (twosided) ideal and (iii) we construct a new resolution of AA as an AAopA \otimes A^{op}-module in the situation (ii). In either case we prove minimality of the resolution for certain classes of algebras AA.

Keywords

Cite

@article{arxiv.math/0501179,
  title  = {Resolution of the residue class field via algebraic discrete Morse theory},
  author = {Michael Joellenbeck and Volkmar Welker},
  journal= {arXiv preprint arXiv:math/0501179},
  year   = {2016}
}

Comments

40 pages