English

Monodromy Conjecture for log generic polynomials

Algebraic Geometry 2021-10-26 v2

Abstract

A log generic hypersurface in Pn\mathbb{P}^n with respect to a birational modification of Pn\mathbb{P}^n is by definition the image of a generic element of a high power of an ample linear series on the modification. A log very-generic hypersurface is defined similarly but restricting to line bundles satisfying a non-resonance condition. Fixing a log resolution of a product f=f1fpf=f_1\ldots f_p of polynomials, we show that the monodromy conjecture, relating the motivic zeta function with the complex monodromy, holds for the tuple (f1,,fp,g)(f_1,\ldots,f_p,g) and for the product fgfg, if gg is log generic. We also show that the stronger version of the monodromy conjecture, relating the motivic zeta function with the Bernstein-Sato ideal, holds for the tuple (f1,,fp,g)(f_1,\ldots,f_p,g) and for the product fgfg, if gg is log very-generic.

Keywords

Cite

@article{arxiv.2007.02594,
  title  = {Monodromy Conjecture for log generic polynomials},
  author = {Nero Budur and Robin van der Veer},
  journal= {arXiv preprint arXiv:2007.02594},
  year   = {2021}
}

Comments

v2: Added 1.9 - 1.11 and 6.3 - 6.7. To appear in Math. Z

R2 v1 2026-06-23T16:52:38.535Z