The weak Lefschetz property for m-full ideals and componentwise linear ideals
Commutative Algebra
2012-06-29 v1
Abstract
We give a necessary and sufficient condition for a standard graded Artinian ring defined by an m-full ideal, to have the weak Lefschetz property in terms of graded Betti numbers. This is a generalization of a theorem of Wiebe for componentwise linear ideals. We also prove that the class of componentwise linear ideals and that of completely m-full ideals coincide in characteristic zero and in positive characteristic, with the assumption that the generic initial ideal w.r.t. the graded reverse lexicographic order is stable.
Cite
@article{arxiv.1206.6579,
title = {The weak Lefschetz property for m-full ideals and componentwise linear ideals},
author = {Tadahito Harima and Junzo Watanabe},
journal= {arXiv preprint arXiv:1206.6579},
year = {2012}
}
Comments
to appear in Illinois Journal of Mathematics