Compact symplectic four-dimensional manifolds not admitting polarizations
Marisa Fernández, Manuel de León (1989)
Commentationes Mathematicae Universitatis Carolinae
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Marisa Fernández, Manuel de León (1989)
Commentationes Mathematicae Universitatis Carolinae
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Luis A. Cordero, Marisa Fernández, Manuel De León, Martín Saralegui (1989)
Annales de la Faculté des sciences de Toulouse : Mathématiques
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Schwachhöfer, Lorenz J.
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Dey, Rukmini (2004)
Mathematical Physics Electronic Journal [electronic only]
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J. Kurek, W. M. Mikulski (2003)
Annales Polonici Mathematici
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We describe all natural symplectic structures on the tangent bundles of symplectic and cosymplectic manifolds.
M. Fernández, Manuel de León, I. Rozas (1990)
Archivum Mathematicum
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Günther Trautmann, Giorgio Ottaviani (1994)
Manuscripta mathematica
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Anna Bednarska (2009)
Annales UMCS, Mathematica
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We describe all M fm-natural operators S: Q ↝ Symp P1 transforming classical linear connections ∇ on m-dimensional manifolds M into almost symplectic structures S(∇) on the linear frame bundle P1M over M.
Wojciech Andrzejewski, Aleksy Tralle (1997)
Annales Polonici Mathematici
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We prove the formality property of total spaces of fat bundles over compact homogeneous spaces. Some rational homotopy obstructions to fatness are obtained.