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Pencils and Infinite Dihedral covers of P2

E. Artal Bartolo, Jose Ignacio Cogolludo, Hiro-o Tokunaga

math.AGarXiv:math/0411506

Abstract

In this work we study the connection between the existence of finite dihedral covers of the projective plane ramified along an algebraic curve C, infinite dihedral covers, and pencils of curves containing C.

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