Holomorphic foliations by curves on 3 with non-isolated singularities

Gilcione Nonato Costa[1]

  • [1] Departamento de Matemática - ICEX - UFMG. Cep 30123-970 - Belo Horizonte, Brazil.

Annales de la faculté des sciences de Toulouse Mathématiques (2006)

  • Volume: 15, Issue: 2, page 297-321
  • ISSN: 0240-2963

Abstract

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Let be a holomorphic foliation by curves on 3 . We treat the case where the set Sing ( ) 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.

How to cite

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Nonato Costa, Gilcione. "Holomorphic foliations by curves on $\mathbb{P}^3$ with non-isolated singularities." Annales de la faculté des sciences de Toulouse Mathématiques 15.2 (2006): 297-321. <http://eudml.org/doc/10000>.

@article{NonatoCosta2006,
abstract = {Let $\mathcal\{F\}$ be a holomorphic foliation by curves on $\mathbb\{P\}^3$. We treat the case where the set $\operatorname\{Sing\}(\mathcal\{F\})$ 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 $\mathcal\{F\}$, the multiplicity of $\mathcal\{F\}$ along the curves and the degree and genus of the curves.},
affiliation = {Departamento de Matemática - ICEX - UFMG. Cep 30123-970 - Belo Horizonte, Brazil.},
author = {Nonato Costa, Gilcione},
journal = {Annales de la faculté des sciences de Toulouse Mathématiques},
keywords = {holomorphic foliation; singularities; multiplicity; tangent bundle; Chern classes},
language = {eng},
number = {2},
pages = {297-321},
publisher = {Université Paul Sabatier, Toulouse},
title = {Holomorphic foliations by curves on $\mathbb\{P\}^3$ with non-isolated singularities},
url = {http://eudml.org/doc/10000},
volume = {15},
year = {2006},
}

TY - JOUR
AU - Nonato Costa, Gilcione
TI - Holomorphic foliations by curves on $\mathbb{P}^3$ with non-isolated singularities
JO - Annales de la faculté des sciences de Toulouse Mathématiques
PY - 2006
PB - Université Paul Sabatier, Toulouse
VL - 15
IS - 2
SP - 297
EP - 321
AB - Let $\mathcal{F}$ be a holomorphic foliation by curves on $\mathbb{P}^3$. We treat the case where the set $\operatorname{Sing}(\mathcal{F})$ 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 $\mathcal{F}$, the multiplicity of $\mathcal{F}$ along the curves and the degree and genus of the curves.
LA - eng
KW - holomorphic foliation; singularities; multiplicity; tangent bundle; Chern classes
UR - http://eudml.org/doc/10000
ER -

References

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  1. P. Baum, R. Bott, On the zeros of meromorphic vector-fields, Essays on Topology and Related topics (1970), 29-47, Springer-Verlag, Berlin Zbl0193.52201MR261635
  2. R. Bott, L. W. Tu, Differential Forms in Algebraic Topology, Graduate Texts in Mathematics 82 (1982), Springer Zbl0496.55001MR658304
  3. W. Fulton, Intersection Theory, (1984), Springer-Verlag, Berlin Heidelberg Zbl0541.14005MR732620
  4. X. Gómez-Mont, Holomorphic foliations in ruled surfaces, Trans. American Mathematical Society 312 (1989), 179-201 Zbl0669.57012MR983870
  5. P. Griffiths, J. Harris, Principles of Algebraic Geometry, (1994), John Wiley & Sons, Inc. Zbl0836.14001MR1288523
  6. R. Hartshorne, Algebraic Geometry, (1977), Springer-Verlag, New York Inc Zbl0367.14001MR463157
  7. I. R. Porteous, Blowing up Chern class, Proc. Cambridge Phil. Soc. 56 (1960), 118-124 Zbl0166.16701MR121813
  8. F. Sancho, Number of singularities of a foliation on n , Proceedings of the American Mathematical Society 130 (2001), 69-72 Zbl0987.32015MR1855621
  9. T. Suwa, Indices of vector fields and residues of singular holomorphic foliation, (1998), Hermann Zbl0910.32035MR1649358

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