English

The 'corrected Durfee's inequality' for homogeneous complete intersections

Algebraic Geometry 2012-09-25 v3

Abstract

We address the conjecture of [Durfee1978], bounding the singularity genus, p_g, by a multiple of the Milnor number, \mu, for an n-dimensional isolated complete intersection singularity. We show that the original conjecture of Durfee, namely (n+1)!p_g\leq \mu, fails whenever the codimension r is greater than one. Moreover, we propose a new inequality, and we verify it for homogeneous complete intersections. In the homogeneous case the inequality is guided by a `combinatorial inequality', that might have an independent interest.

Keywords

Cite

@article{arxiv.1111.1411,
  title  = {The 'corrected Durfee's inequality' for homogeneous complete intersections},
  author = {Dmitry Kerner and Andras Nemethi},
  journal= {arXiv preprint arXiv:1111.1411},
  year   = {2012}
}

Comments

10 pages; final version; to appear in "Mathematische Zeitschrift"

R2 v1 2026-06-21T19:31:40.103Z