Homology of powers of ideals: Artin--Rees numbers of syzygies and the Golod property

Details Homology of powers of ideals: Artin--Rees numbers of syzygies and the Golod property Homology of powers of ideals: Artin--Rees numbers of syzygies and the Golod property

2011-08-30

arxiv.org/abs/1108.5862v1

Mathematics

Commutative Algebra

Scientific paper

For an ideal I in a regular local ring (R,m)$ with residue class field K = R/m or a standard graded K-algebra R we show that for k >> 0 --> the Artin--Rees number of the syzygy modules of I^k as submodules of the free modules from a free resolution is constant, and thereby present the Artin-Rees number as a proper replacement of regularity in the local situation, --> the ring R/I^k is Golod, its Poincer{\'e}-Betti series is rational and the Betti numbers of the free resolution of K over R/I^k are polynomials in k of a specific degree. The first result is an extension of work of Kodiyalam and Cutkosky, Herzog & Trung on the regularity of I^k for k >> 0 from the graded situation to the local situation. The polynomiality consequence of the second result is an analog of work by Kodiyalam on the behavior of Betti numbers of the minimal free resolution of R/I^k over R.

Affiliated with

Also associated with

No associations

Rating

Homology of powers of ideals: Artin--Rees numbers of syzygies and the Golod property does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Homology of powers of ideals: Artin--Rees numbers of syzygies and the Golod property, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Homology of powers of ideals: Artin--Rees numbers of syzygies and the Golod property will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-728845