Asymptotic behavior of dimensions of syzygies

Details Asymptotic behavior of dimensions of syzygies Asymptotic behavior of dimensions of syzygies

2011-10-20

arxiv.org/abs/1110.4582v1

Mathematics

Commutative Algebra

8 pages; to appear in Proc. Amer. Math. Soc

Scientific paper

Let R be a commutative noetherian local ring, and M a finitely generated R-module of infinite projective dimension. It is well-known that the depths of the syzygy modules of M eventually stabilize to the depth of R. In this paper, we investigate the conditions under which a similar statement can be made regarding dimension. In particular, we show that if R is equidimensional and the Betti numbers of M are eventually non-decreasing, then the dimension of any sufficiently high syzygy module of M coincides with the dimension of R.

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