A ug 2 00 5 On the existence of branched coverings between surfaces with prescribed branch data

  • Ekaterina, ervova, Carlo, etronio
  • Published 2009

Abstract

Given a branched covering between closed connected surfaces, one can easily establish some relations between the Euler characteristic and orientability of the involved surfaces, the degree of the covering, the number of branching points, and the local degrees at these points. These relations can therefore be regarded as necessary conditions for the… (More)

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