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Article Dans Une Revue Nagoya Mathematical Journal Année : 2016

The holomorphy conjecture for nondegenerate surface singularities

Résumé

The holomorphy conjecture states roughly that Igusa's zeta function associated to a hypersurface and a character is holomorphic on C whenever the order of the character does not divide the order of any eigenvalue of the local monodromy of the hypersurface. In this article we prove the holomorphy conjecture for surface singularities which are nondegenerate over C w.r.t. their Newton polyhedron. In order to provide relevant eigenvalues of monodromy, we first show a relation between the normalized volume (which appears in the formula of Varchenko for the zeta function of monodromy) of faces in a simplex in arbitrary dimension. We then study some specific character sums that show up when dealing with false poles. In contrast with the context of the trivial character, we here need to show fakeness of certain poles in addition to the candidate poles contributed by B1-facets.
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Dates et versions

hal-01280041 , version 1 (29-02-2016)

Identifiants

  • HAL Id : hal-01280041 , version 1

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Wouter Castryck, Denis Ibadula, Ann Lemahieu. The holomorphy conjecture for nondegenerate surface singularities. Nagoya Mathematical Journal, 2016. ⟨hal-01280041⟩
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