Semicontinuity of the spectrum at infinity

Abstract

We prove that, for an analytic family of ``weakly tame'' regular functions on an affine manifold, the spectrum at infinity of each function of the family is semicontinuous in the sense of Varchenko.

AMS-LaTeX with amsart.sty. 10 pages

References in corpus (1)

• Hypergeometric periods for a tame polynomial

Cited by in corpus (3)

• Cohomological Hall algebra, exponential Hodge structures and motivic Donaldson-Thomas invariants
• Spectrum of plane curves via knot theory
• Quantum cohomology of the Grassmannian and alternate Thom-Sebastiani