Existence of -almost tangent structures
Luis A. Cordero, Manuel de León, Isabel Méndez, Modesto R. Salgado (1992)
Czechoslovak Mathematical Journal
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Displaying similar documents to “Almost contact structures and time-dependent Lagrangians”
Existence of -almost tangent structures
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A Product Twistor Space
Blair, David (2002)
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∗Research supported in part by NSF grant INT-9903302. In previous work a hyperbolic twistor space over a paraquaternionic Kähler manifold was defined, the fibre being the hyperboloid model of the hyperbolic plane with constant curvature −1. Two almost complex structures were defined on this twistor space and their properties studied. In the present paper we consider a twistor space over a paraquaternionic Kähler manifold with fibre given by the hyperboloid of 1-sheet,...
Natural diagonal Riemannian almost product and para-Hermitian cotangent bundles
Simona-Luiza Druţă-Romaniuc (2012)
Czechoslovak Mathematical Journal
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We obtain the natural diagonal almost product and locally product structures on the total space of the cotangent bundle of a Riemannian manifold. Studying the compatibility and the anti-compatibility relations between the determined structures and a natural diagonal metric, we find the Riemannian almost product (locally product) and the (almost) para-Hermitian cotangent bundles of natural diagonal lift type. Finally, we prove the characterization theorem for the natural diagonal (almost)...