Signature of the Milnor fiber of parametrized surfaces

Fuente: arXiv
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Main Authors: Conejero, R. Giménez, Pintér, Gergő
Format: Preprint
Published: 2024
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author Conejero, R. Giménez
Pintér, Gergő
author_facet Conejero, R. Giménez
Pintér, Gergő
contents We compute the signature of the Milnor fiber of certain type of non-isolated complex surface singularities, namely, images of finitely determined holomorphic germs. An explicit formula is given in algebraic terms. As a corollary we show that the signature of the Milnor fiber is a topological invariant for these singularities. The proof combines complex analytic and smooth topological techniques. The main tools are Thom-Mather theory of map germs and the Ekholm-Szűcs-Takase-Saeki formula for immersions. We give a table with many examples for which the signature is computed using our formula.
format Preprint
id arxiv_https___arxiv_org_abs_2401_14951
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Signature of the Milnor fiber of parametrized surfaces
Conejero, R. Giménez
Pintér, Gergő
Algebraic Geometry
32S25, 32S50 (Primary) 57R42 (Secondary)
We compute the signature of the Milnor fiber of certain type of non-isolated complex surface singularities, namely, images of finitely determined holomorphic germs. An explicit formula is given in algebraic terms. As a corollary we show that the signature of the Milnor fiber is a topological invariant for these singularities. The proof combines complex analytic and smooth topological techniques. The main tools are Thom-Mather theory of map germs and the Ekholm-Szűcs-Takase-Saeki formula for immersions. We give a table with many examples for which the signature is computed using our formula.
title Signature of the Milnor fiber of parametrized surfaces
topic Algebraic Geometry
32S25, 32S50 (Primary) 57R42 (Secondary)
url https://arxiv.org/abs/2401.14951