De Rham currents and sprays
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Mircea Puta (1982)
Časopis pro pěstování matematiky
Schaaf, Michael (2000)
Beiträge zur Algebra und Geometrie
Jacques Vey (1975)
Commentarii mathematici Helvetici
A. Crumeyrolle (1981)
Annales de l'I.H.P. Physique théorique
André Lichnerowicz (1982)
Annales de l'institut Fourier
Fondements de la théorie des -produits. Notion de -produit de Vey; tout -produit est équivalent à un -produit de Vey. Sur toute variété symplectique paracompacte telle que , il existe des -produits de Vey. Caractérisation des algèbres de Lie engendrées par antisymétrisation d’un -produit (éventuellement faible); ce sont à une équivalence près, les algèbres de Lie de Vey.On considère les variétés symplectiques sur lesquelles opère, par symplectomorphismes, un groupe de Lie . Si admet...
Joyce, Dominic, Salur, Sema (2005)
Geometry & Topology
Michael Kapovich (1994)
Mathematische Annalen
Alexander A. Ermolitski (2007)
Banach Center Publications
Tubular neighborhoods play an important role in modern differential topology. The main aim of the paper is to apply these constructions to geometry of structures on Riemannian manifolds. Deformations of tensor structures on a normal tubular neighborhood of a submanifold in a Riemannian manifold are considered in section 1. In section 2, this approach is used to obtain a Kählerian structure on the corresponding normal tubular neighborhood of the null section in the tangent bundle TM of a smooth manifold...
Carlos Moreno, Pilar Ortega-Navarro (1983)
Annales de l'I.H.P. Physique théorique
Wilhelm Klingenberg (1974)
Mathematische Zeitschrift
Paul Krée (1976/1977)
Séminaire Paul Krée
Zapiski naucnych seminarov POMI
Guy Rousseau (1978)
Commentarii mathematici Helvetici
George N. Galanis (2004)
Rendiconti del Seminario Matematico della Università di Padova
Norman E. Hurt (1971)
Annales de l'I.H.P. Physique théorique
Jedrzej Śniatycki (1974)
Annales de l'I.H.P. Physique théorique
Fernando Etayo, Rafael Santamaría (2016)
Archivum Mathematicum
We study several linear connections (the first canonical, the Chern, the well adapted, the Levi Civita, the Kobayashi-Nomizu, the Yano, the Bismut and those with totally skew-symmetric torsion) which can be defined on the four geometric types of -metric manifolds. We characterize when such a connection is adapted to the structure, and obtain a lot of results about coincidence among connections. We prove that the first canonical and the well adapted connections define a one-parameter family of adapted...
L. Cordero, M. Fernández, A. Gray, L. Ugarte (1998)
Banach Center Publications
In this paper we study the degeneration of both the cohomology and the cohomotopy Frölicher spectral sequences in a special class of complex manifolds, namely the class of compact nilmanifolds endowed with a nilpotent complex structure. Whereas the cohomotopy spectral sequence is always degenerate for such a manifold, there exist many nilpotent complex structures on compact nilmanifolds for which the classical Frölicher spectral sequence does not collapse even at the second term.
András Stipsicz (1995)
Journal für die reine und angewandte Mathematik
András Stipsicz (1995)
Journal für die reine und angewandte Mathematik
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