Stable mappings of 3-manifolds into the plane
Harold Levine (1988)
Banach Center Publications
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Harold Levine (1988)
Banach Center Publications
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Arthur, James (1998)
Documenta Mathematica
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John N. Mather (1969)
Publications Mathématiques de l'IHÉS
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Hanna Matuszczyk (1984)
Banach Center Publications
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Knobloch, H. W., Aulbach, B.
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Andrei Moroianu, Uwe Semmelmann (2003)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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Twistor forms are a natural generalization of conformal vector fields on riemannian manifolds. They are defined as sections in the kernel of a conformally invariant first order differential operator. We study twistor forms on compact Kähler manifolds and give a complete description up to special forms in the middle dimension. In particular, we show that they are closely related to hamiltonian 2-forms. This provides the first examples of compact Kähler manifolds with non–parallel twistor...
Korbaš, Július, Zvengrowski, Peter
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This paper has two parts. Part one is mainly intended as a general introduction to the problem of sectioning vector bundles (in particular tangent bundles of smooth manifolds) by everywhere linearly independent sections, giving a survey of some ideas, methods and results.Part two then records some recent progress in sectioning tangent bundles of several families of specific manifolds.