On the first secondary invariant of Molino's central sheaf

• Autorzy: Jesús A. Álvarez López
• Języki publikacji: EN

Abstrakty

EN

For a Riemannian foliation on a closed manifold, the first secondary invariant of Molino's central sheaf is an obstruction to tautness. Another obstruction is the class defined by the basic component of the mean curvature with respect to some metric. Both obstructions are proved to be the same up to a constant, and other geometric properties are also proved to be equivalent to tautness.

Słowa kluczowe

EN

foliation; taut

Kategorie tematyczne

• 53C12: Foliations (differential geometric aspects)
• 57R30: Foliations; geometric theory

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Annales Polonici Mathematici
• Rocznik: 1996
• Tom: 64
• Numer: 3
• Strony: 253-265

Daty

wydano

1996

otrzymano

1995-08-21

poprawiono

1995-11-29

Twórcy

autor

Jesús A. Álvarez López

• Universidade de Santiago de Compostela, Facultade de Ciencias, 27071 Lugo, Spain

Bibliografia

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