English

The eventual shape of the Betti table of $\mathfrak{m}^kM$

Commutative Algebra 2023-09-08 v4

Abstract

Let SS be the polynomial ring over a field KK in a finite set of variables, and let m \mathfrak{m} be the graded maximal ideal of SS. It is known that for a finitely generated graded SS-module MM and all integers k0k\gg 0, the module mkM \mathfrak{m}^kM is componentwise linear. For large kk we describe the pattern of the Betti table of mkM \mathfrak{m}^kM when char(K)=0\mathrm{char}(K)=0 and MM is a submodule of a finitely generated graded free SS-module. Moreover, we show that for any k0k\gg 0, mkI \mathfrak{m}^kI has linear quotients if II is a monomial ideal.

Keywords

Cite

@article{arxiv.2308.00639,
  title  = {The eventual shape of the Betti table of $\mathfrak{m}^kM$},
  author = {Antonino Ficarra and Jürgen Herzog and Somayeh Moradi},
  journal= {arXiv preprint arXiv:2308.00639},
  year   = {2023}
}