English

On the Weak Lefschetz Property for Artinian Gorenstein algebras of codimension three

Commutative Algebra 2014-01-28 v2 Algebraic Geometry Combinatorics

Abstract

We study the problem of whether an arbitrary codimension three graded artinian Gorenstein algebra has the Weak Lefschetz Property. We reduce this problem to checking whether it holds for all compressed Gorenstein algebras of odd socle degree. In the first open case, namely Hilbert function (1,3,6,6,3,1), we give a complete answer in every characteristic by translating the problem to one of studying geometric aspects of certain morphisms from P2\mathbb P^2 to P3\mathbb P^3, and Hesse configurations in P2\mathbb P^2.

Keywords

Cite

@article{arxiv.1302.5742,
  title  = {On the Weak Lefschetz Property for Artinian Gorenstein algebras of codimension three},
  author = {Mats Boij and Juan Migliore and Rosa M. Miro'-Roig and Uwe Nagel and Fabrizio Zanello},
  journal= {arXiv preprint arXiv:1302.5742},
  year   = {2014}
}

Comments

A few changes with respect to the previous version. 17 pages. To appear in the J. of Algebra