Invariant surfaces for toric type foliations in dimension three
ISSN: 0214-1493
Ano de publicación: 2021
Volume: 65
Número: 1
Páxinas: 291-307
Tipo: Artigo
Outras publicacións en: Publicacions matematiques
Resumo
A foliation is of toric type when it has a combinatorial reduction of singularities. We show that every toric type foliation on (C3, 0) without saddle-nodes has invariant surface. We extend the argument of Cano–Cerveau for the nondicritical caseto the compact dicritical components of the exceptional divisor. These components are projective toric surfaces and the isolated invariant branches of the induced foliation extend to closed irreducible curves. We build the invariant surface as a germ along the singular locus and those closed irreducible invariant curves. The result of OrtizBobadilla–Rosales-Gonzalez–Voronin about the distribution of invariant branches indimension two is a key argument in our proof.
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