English

Uniform Artin-Rees Bounds for Syzygies

Commutative Algebra 2014-06-12 v1

Abstract

Let (R,m)(R,m) be a local Noetherian ring, let MM be a finitely generated RR-module and let (F,)(F_{\bullet},\partial_{\bullet}) be a free resolution of MM. We find a uniform bound hh such that the Artin-Rees containment InFiImi+1InhImi+1I^n F_i\cap Im \, \partial_{i+1} \subseteq I^{n-h} Im \, \partial_{i+1} holds for all integers idi\ge d, for all integers nhn\ge h, and for all ideals II of RR. In fact, we show that a considerably stronger statement holds. The uniform bound hh holds for all ideals and all resolutions of ddth syzygy modules. In order to prove our statements, we introduce the concept of Koszul annihilating sequences.

Keywords

Cite

@article{arxiv.1406.2866,
  title  = {Uniform Artin-Rees Bounds for Syzygies},
  author = {Ian M. Aberbach and Aline Hosry and Janet Striuli},
  journal= {arXiv preprint arXiv:1406.2866},
  year   = {2014}
}

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14 pages