Article ID Journal Published Year Pages File Type
4654998 European Journal of Combinatorics 2006 7 Pages PDF
Abstract

We obtain a formula for the number of classes of regular branched coverings of compact surfaces. The formula gives the number of coverings with a fixed automorphism group GG and a determined type of branching data in terms of algebraic operations in the center of the group algebra of GG.

Related Topics
Physical Sciences and Engineering Mathematics Discrete Mathematics and Combinatorics
Preview
Counting the regular coverings of surfaces using the center of a group algebra
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