Regular foliations along curves
Paulo Sad (1999)
Annales de la Faculté des sciences de Toulouse : Mathématiques
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Paulo Sad (1999)
Annales de la Faculté des sciences de Toulouse : Mathématiques
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Gilcione Nonato Costa (2006)
Annales de la faculté des sciences de Toulouse Mathématiques
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Let be a holomorphic foliation by curves on . We treat the case where the set consists of disjoint regular curves and some isolated points outside of them. In this situation, using Baum-Bott’s formula and Porteuos’theorem, we determine the number of isolated singularities, counted with multiplicities, in terms of the degree of , the multiplicity of along the curves and the degree and genus of the curves.
Marco Brunella (1999)
Bulletin de la Société Mathématique de France
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Alcides Lins Neto (2002)
Annales scientifiques de l'École Normale Supérieure
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Alexis García Zamora (1997)
Publicacions Matemàtiques
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Given a foliation in an algebraic surface having a rational first integral a genus formula for the general solution is obtained. In the case S = P some new counter-examples to the classic formulation of the Poincaré problem are presented. If S is a rational surface and has singularities of type (1, 1) or (1,-1) we prove that the general solution is a non-singular curve.
Felipe Cano (1998)
Banach Center Publications
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