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Harmonic morphisms of graphs and the Riemann–Hurwitz theorem (2016)

Springer

In: Doklady Mathematics

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Publication Date: 2016-03-31

Description: Several versions of the Riemann–Hurwitz theorem for branched coverings of graphs are presented. A larger class of graphs which may have not only multiple edges but also loops and darts is considered. This makes it possible to render the class of graphs closed with respect to morphisms arising as quotient maps for actions of finite groups.

Print ISSN: 1064-5624

Electronic ISSN: 1531-8362

Topics: Mathematics

Published by Springer

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