title: On non-Kupka points of codimension one foliations on ℙ3.
abstract: We study the singular set of a codimension one holomorphic foliation on ℙ 3 . We find a local normal form for these foliations near a codimension two component of the singular set that is not of Kupka type. We also determine the number of non-Kupka points immersed in a codimension two component of the singular set of a codimension one foliation on ℙ 3.
authors.affiliation: Centro de Investigaciones en Matemáticas/CIMAT, A.C., Jalisco, s/n, Col. Valenciana CP 36023 Guanajuato, Gto, México.
authors.forename: Omegar
authors.initials: O
authors.lastname: Calvo-Andrade
authors.affiliation: Universidade Federal de Minas Gerais, Departamento de Matemática, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil.
authors.forename: Maurício
authors.initials: M
authors.lastname: Côrrea
authors.affiliation: Universidade Federal de Minas Gerais, Departamento de Matemática, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil.
authors.forename: Arturo
authors.initials: A
authors.lastname: Fernández-Pérez