English

Asymptotic linear bounds of Castelnuovo-Mumford regularity in multigraded modules

Commutative Algebra 2015-09-24 v3

Abstract

Let AA be a Noetherian standard N\mathbb{N}-graded algebra over an Artinian local ring A0A_0. Let I1,,ItI_1,\ldots,I_t be homogeneous ideals of AA and MM a finitely generated N\mathbb{N}-graded AA-module. We prove that there exist two integers kk and kk' such that reg(I1n1ItntM)(n1++nt)k+k\mboxforall n1,,ntN. \mathrm{reg}(I_1^{n_1} \cdots I_t^{n_t} M) \leq (n_1 + \cdots + n_t) k + k' \quad\mbox{for all }~n_1,\ldots,n_t \in \mathbb{N}.

Keywords

Cite

@article{arxiv.1405.5970,
  title  = {Asymptotic linear bounds of Castelnuovo-Mumford regularity in multigraded modules},
  author = {Dipankar Ghosh},
  journal= {arXiv preprint arXiv:1405.5970},
  year   = {2015}
}

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9 pages