English

Control by the lowest degree vanishing cycles

Algebraic Geometry 2019-11-12 v1

Abstract

Given the germ of an analytic function on affine space with a smooth critical locus, we prove that the constancy of the stalk cohomology of the Milnor fiber in lowest degree off a codimension two subset of the critical locus implies that the vanishing cycles are concentrated in lowest degree and are constant.

Cite

@article{arxiv.1911.03469,
  title  = {Control by the lowest degree vanishing cycles},
  author = {David B. Massey},
  journal= {arXiv preprint arXiv:1911.03469},
  year   = {2019}
}

Comments

6 pages. arXiv admin note: text overlap with arXiv:math/0504380

R2 v1 2026-06-23T12:09:45.307Z