Título:
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Simply connected K-contact and Sasakian manifolds of dimension 7
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Autores:
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Muñoz, Vicente ;
Tralle, Aleksy
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Tipo de documento:
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texto impreso
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Editorial:
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Springer, 2015
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Matemáticas: Geometría
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Materia = Ciencias: Matemáticas: Topología
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Tipo = Artículo
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Resumen:
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We construct a compact simply-connected 7-dimensional manifold admitting a K-contact structure but not a Sasakian structure. We also study rational homotopy properties of such manifolds, proving in particular that a simply-connected 7-dimensional Sasakian manifold has vanishing cup-product on the second cohomology and that it is formal if and only if all its triple Massey products vanish.
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En línea:
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https://eprints.ucm.es/33162/1/Mu%C3%B1ozVel%C3%A1zquez201abierto.pdf
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