Some properties of almost -paracontact manifolds.
Bucki, A. (2001)
Lobachevskii Journal of Mathematics
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Bucki, A. (2001)
Lobachevskii Journal of Mathematics
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El-Ghoul, M., El-Ahmady, A.E., Abu-Saleem, M. (2007)
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Francesco Costantino (2005)
Fundamenta Mathematicae
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We give a self-contained introduction to the theory of shadows as a tool to study smooth 3-manifolds and 4-manifolds. The goal of the present paper is twofold: on the one hand, it is intended to be a shortcut to a basic use of the theory of shadows, on the other hand it gives a sketchy overview of some of the most recent results on shadows. No original result is proved here and most of the details of the proofs are left out.
Barbara Opozda
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CONTENTSIntroduction.................................................................................................................................................51. Preliminaries...........................................................................................................................................62. f-Kählerian manifolds............................................................................................................................113. The f-sectional...
P. H. Doyle (1974)
Colloquium Mathematicae
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Pripoae, Cristina Liliana, Pripoae, Gabriel Teodor (2005)
Balkan Journal of Geometry and its Applications (BJGA)
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L. Szamkołowicz (1969)
Colloquium Mathematicae
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Journal of the European Mathematical Society
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Jovanka Nikić (1988)
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C. B. Thomas (1986)
Banach Center Publications
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Colloquium Mathematicae
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Fetcu, Dorel (2004)
Balkan Journal of Geometry and its Applications (BJGA)
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Giovanni Battista Rizza (1988)
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Almost hermitian manifolds, whose Riemann curvature tensor satisfies an almost complex Bianchi-type identity, are considered. Some local and global theorems are proved. The special cases of parakähler manifolds and of Kähler manifolds are examined.
Fominykh, E.A., Ovchinnikov, M.A. (2005)
Sibirskie Ehlektronnye Matematicheskie Izvestiya [electronic only]
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Masahiro Shiota (1986)
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Franc Forstnerič (2013)
Annales de la faculté des sciences de Toulouse Mathématiques
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Oka theory has its roots in the classical Oka-Grauert principle whose main result is Grauert’s classification of principal holomorphic fiber bundles over Stein spaces. Modern Oka theory concerns holomorphic maps from Stein manifolds and Stein spaces to Oka manifolds. It has emerged as a subfield of complex geometry in its own right since the appearance of a seminal paper of M. Gromov in 1989. In this expository paper we discuss Oka manifolds and Oka maps. We describe equivalent...