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Moscow Mathematical Journal

Volume 24, Issue 2, April–June 2024  pp. 181–199.

Monodromy Problem and Tangential Center-Focus Problem for Products of Lines in General Position in P2

Authors:  Daniel López García (1)
Author institution:(1) Instituto de Matemática e Estatística da Universidade de São Paulo (IME-USP), Rua do Matão, 1010, São Paulo 05508-090, SP, Brazil

Summary: 

We consider a rational map F defined by a quotient of products of lines in general position and we study the monodromy problem and the tangential center-focus problem for the fibration associated with F. Thus, we study the submodule of the 1-homology group of a regular fiber of F generated by the orbit of the monodromy action on a vanishing cycle. Moreover, we characterize the meromorphic 1-forms ω in P2 such that the Abelian integral δtω vanishes on a family of cycles δt around a center singularity.

2020 Math. Subj. Class. 34C07, 32S65, 14D05, 34C08.



Keywords: Holomorphic foliations, center problem, monodromy action, Abelian integral.

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