English

The $*$-core of the graded maximal ideal in a Stanley-Reisner ring

Commutative Algebra 2018-10-25 v3

Abstract

We consider ideals II in a Stanley-Reisner ring k[Δ]k[\Delta] over the simplical complex Δ\Delta, such that the tight closure of II, II^*, is equal to m\mathfrak{m}, the standard graded maximal ideal of k[Δ]k[\Delta]. We determine the minimal number of generators of II to be the dimΔ+1\dim \Delta+1 and note the important role this value plays in bounding the intersection of all such ideals II. We make mention of this intersection in special cases of Stanley-Reisner rings. We conclude with a description of how this work relates to integral closure.

Keywords

Cite

@article{arxiv.1810.05896,
  title  = {The $*$-core of the graded maximal ideal in a Stanley-Reisner ring},
  author = {Thomas M. Ales},
  journal= {arXiv preprint arXiv:1810.05896},
  year   = {2018}
}