English

Mesoprimary decomposition of binomial submodules

Commutative Algebra 2018-08-15 v1

Abstract

Recent results of Kahle and Miller give a method of constructing primary decompositions of binomial ideals by first constructing "mesoprimary decompositions" determined by their underlying monoid congruences. These mesoprimary decompositions are highly combinatorial in nature, and are designed to parallel standard primary decomposition over Noetherean rings. In this paper, we generalize mesoprimary decomposition from binomial ideals to "binomial submodules" of certain graded modules over the corresponding monoid algebra, analogous to the way primary decomposition of ideals over a Noetherean ring RR generalizes to RR-modules. The result is a combinatorial method of constructing primary decompositions that, when restricting to the special case of binomial ideals, coincides with the method introduced by Kahle and Miller.

Keywords

Cite

@article{arxiv.1511.00161,
  title  = {Mesoprimary decomposition of binomial submodules},
  author = {Christopher O'Neill},
  journal= {arXiv preprint arXiv:1511.00161},
  year   = {2018}
}
R2 v1 2026-06-22T11:33:52.650Z