Abstract
We study the relationship between singular holomorphic foliations at \((\mathbb {C}^{2},0)\) and their separatrices. Under mild conditions we describe a complete set of analytic invariants characterizing foliations with quasi-homogeneous separatrices. Further, we give the full moduli space of quasi-homogeneous plane curves. This paper has an expository character in order to make it accessible also to non-specialists.
This work was partially supported by CAPES-PROCAD grant no. 0007056.
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References
Arnold, V.I.: Chapitres supplémentaires de la théorie des équations différentielles ordinaires, edns., pp. 324. Mir, Moscou (1980). MR 0626685 (83a:34003)
Berzolari, L.: Allgemeine Theorie der höheren ebenen algebraischen Kurven, Enzyklopädie der math. Wissenschaften, Bd. III 2, 1, 313–455 (1906)
Brieskorn, E.: Beispiele zur Differentietopologie von Singularitäten. Invent. Math. 2, 1–14 (1966). MR 0206972 (34 #6788)
Berthier, M., Meziani, R., Sad, P.: On the classification of nilpotent singularities. Bull. Sci. Math. 123(5)351–370 (1999). MR 1703202 (2000j:32052)
Camacho, C., Sad, P.: Invariant varieties through singularities of holomorphic vector fields. Ann. Math. (2) 115(3), 579–595 (1982). MR 0657239 (83m:58062)
Camacho, C., Lins-Neto, A., Sad, P.: Topological invariants and equidesingularization for holomorphic vector fields. J. Differ. Geom. 20(1), 143–174 (1984). MR 0772129 (86d:58080)
Camacho, C., Scárdua, B.A.: The transcendence of the solutions of a complex differential equation. In: Mozo, J. (ed.) Ecuationes Diferenciales y Singularidades, Publicaciones de la Universidad de Valladolid (1997)
Camacho, C., Scárdua, B.A.: Beyond Liouvillian transcendence. Math. Res. Lett. 6(1), 31–41 (1999). MR 1682717 (2000b:32057)
Camacho, C., Scárdua, B.A.: Complex foliations with algebraic limit sets, Géométrie Complexe et Systémes Dynamiques (Orsay, 1995), Astérisque (2000), no. 261, xi, 57–88.MR 1755437 (2001d:32045)
Camacho, C., Scárdua, B.A.: Holomorphic foliations with Liouvillian first integrals, Ergodic Theory Dynam. Systems 21(3), 717–756 (2001). MR 1836428 (2002k:37080)
Camacho, C., Scárdua, B.A.: Erratum to: “Holomorphic foliations with Liouvillian first integrals” [Ergodic Theory Dynam. Systems 21(3), 717–756 (2001); MR 1836428 (2002k:37080)]. Ergodic Theory Dynam. Systems 23(3) 985–987 (2003). MR 1992674 (2004g:37062)
Câmara, L.M.: Non-linear analytic differential equations and their invariants, IMPA preprint Série C 5/2001. http://preprint.impa.br/visualizar?id=5636
Cerveau, D., Moussu, R.: Groups d‘automorphismes de \(({\mathbb{C}},0)\) et équations différentielles \(y\,dy+\cdots =0\). Bull. Soc. Math. France 116(4), 459–488 (1988). MR 1005391 (90m:58192)
Ehresmann, C.: Catégories différentiable et géométrie différentielle, Université de Montréal, Montréal (1961). MR 0149401 (26 #6890)
Ehresmann, C.: Catégories et structures. Dunod, Paris (1965). MR 0213410 (35 #4274)
Elizarov, P.M., Il’yashenko, Yu.S., Shcherbakov, A.A., Voronin, S.M.: Finitely generated groups of germs of one-dimensional conformal mappings, and invariants for complex singular points of analytic foliations of the complex plane. Nonlinear Stokes phenomena, pp. 57–105, Advances in Soviet Mathematics, 14, American Mathematical Society, Providence, RI (1993). MR 1206042 (94e:32055)
Genzmer, Y.: Analytical and formal classifications of quasi-homogeneous foliations in \(({\mathbb{C}}^{2},0)\). J. Differ. Equ. 245(6), 1656–1680 (2008). MR 2436456 (2009j:37075)
Grauert, H.: Über Modifikationen und exzeptionelle analytische Mengen. Math. Ann. 146, 331–368 (1962). MR 0137127 (25 #583)
Grothendieck, A.: Sur la classification des fibrés holomorphe sur la sphere de Riemann. Am. J. Math. 79, 121–138 (1957). MR 0087176 (19,315b)
Haefliger, A.: Structures feuilletées et cohomologie à valeur dans un faisceux de groupoïdes. Comment. Math. Helv. 32 (1958), 248–329. MR 0100269 (20 #6702)
Hefez, A., Hernandes, M.E.: The analytic classification of plane branches. Bull. Lond. Math. Soc. 43(2), 289–298 (2011). MR 2781209 (2012c:14065)
Kang, C.: Analytic types of plane curve singularities defined by weighted homogeneous polynomials. Trans. Am. Math. Soc. 352(9), 3995–4006 (2000). MR 1661266 (2000m:32035)
Laufer, H.B.: Normal two dimensional singularities. In: Annals of Mathematics Studies, vol. 71. Princeton University Press, Princeton, N.J.; University of Tokyo Press, Tokyo (1971). MR 0320365 (47 #8904)
Lins-Neto, A.: Construction of singular holomorphic vector fields and foliations in dimension two. J. Diff. Geom. 26(1), 3–31 (1987). MR 0892029 (88f:32047)
Mattei, J.-F.: Quasihomogénéité et equireducibilité de feuilletages holomorphes em dimenson deux, Géométrie complexe et systèmes dynamiques (Orsay, 1995), Astérisque No. 261 (2000), xix, 253–276. MR 1755444 (2001g:37069)
Mattei, J.-F., Moussu, R.: Holonomie et intégrales premières. Ann. Scient. Ec. Norm. Sup., 4\(^{\text{e}}\) série. 13, 469–523 (1980). MR 0608290 (83b:58005)
Martinet, J., Ramis, J.-P.: Problèmes de modules pour des équations différentielles non-linéaires du premier ordre. Inst. Hautes Études Sci. Publ. Math. 55, 63–164 (1982). MR 0672182 (84k:34011)
Martinet, J., Ramis, J.-P.: Classification analytique des équations différentielles non-linéaires résonnantes du premier ordre. Ann. Sci. École Norm. Sup. 16(4), 571–621 (1983, 1984). MR 0740592 (86k:34034)
Moussu, R.: Holonomie évanescente des équations différentielles dégénérées transverses. In: Singularities and Dynamical Systems (Iráklion, 1983), North-Holland Mathematics Studies, vol. 103, pp. 161–173. North-Holland, Amsterdam (1985). MR 0806187 (87d:58008)
Poincaré, H.: Note sur les propriétés des fonctions définies par des équations différentielles. J. Ec. Pol. 45 \(^{\text{ e }}\) cahier, 13–26 (1878)
Seindenberg, A.: Reduction of the singularities of the differentiable equation \(Ady=Bdx\). Am. J. Math 90, 248–269 (1968). MR 0220710 (36 #3762)
Strozyna, E.: Orbital formal normal forms for general Bogdanov-Takens singularity. J. Differ. Equ. 193(1) 239–259 (2003). MR 1994066 (2004e:37074)
Yoccoz, J.-C.: Linearisation des germes de diffeomorphismes holomorphes de \(({\mathbf{C}},0)\). C. R. Acad. Sci. Paris Sér. I Math. 306(1), 55–58 (1988). MR 0929279 (89i:58123)
Zariski, O.: On the topology of algebroid singularities. Am. J. Math. 54(3), 453–465 (1932). MR 1507926
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Câmara, L.M., Scárdua, B. (2018). A Comprehensive Approach to the Moduli Space of Quasi-homogeneous Singularities. In: Araújo dos Santos, R., Menegon Neto, A., Mond, D., Saia, M., Snoussi, J. (eds) Singularities and Foliations. Geometry, Topology and Applications. NBMS BMMS 2015 2015. Springer Proceedings in Mathematics & Statistics, vol 222. Springer, Cham. https://doi.org/10.1007/978-3-319-73639-6_15
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