Mathematics – Algebraic Geometry
Scientific paper
2008-03-26
Mathematics
Algebraic Geometry
Scientific paper
We offer an equivariant version of the classical monodromy zeta function of a singularity as a series with coefficients from the Grothendieck ring of finite G-sets tensored by the field of rational numbers. Main two ingredients of the definition are equivariant Lefschetz numbers and the lambda-structure on the Grothendieck ring of finite G-sets. We give an A'Campo type formula for the equivariant zeta function.
Gusein-Zade Sabir M.
Hernandez Alejandro Melle
Luengo Igancio
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