Results 281 to 290 of about 3,067,810 (315)

Almost contact Einstein-Weyl structures

manuscripta mathematica, 2002
The concept of almost contact structures [\textit{D. E. Blair}, Contact manifolds in Riemann geometry. Lect. Notes Math. 509, Springer-Verlag (1976; Zbl 0319.53026)] has led to an array of related structures on odd-dimensional manifolds, such as Sasakian and cosymplectic structures. \textit{I. Vaisman} [Lect. Notes Math.
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Almost contact metric submersions and structure equations

Publicationes Mathematicae Debrecen, 2022
This paper is a continuation of two papers of the author [Rend. Circ. Mat. Palermo, II. Ser. 33, 319-330 (1984; Zbl 0559.53021), and ibid. 34, 89-104 (1985; Zbl 0572.53033)]. For two almost contact metric manifolds M and M' the differential geometric properties of almost contact submersions are studied.
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From Ricci Soliton to Almost Contact Metric Structures

International Electronic Journal of Geometry
In this paper, we construct almost contact metric structures on a three-dimensional Riemannian manifold equipped with an almost Ricci soliton. Then, we give the techniques necessary to define the nature of such structures. Concrete examples are given.
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Almost contact homogeneous structures

1995
Let \(M = (M, g, \varphi, \xi,\eta)\) be an almost contact Riemannian manifold. Then \(M\) is said to be almost contact homogeneous if it admits a transitive Lie group of isometries leaving \(\varphi\) invariant. On such a manifold there exists an almost contact homogeneous structure, i.e., a (1,2)-tensor field \(T\) such that with \(\overline {\nabla}
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Submanifolds in differentiable manifolds endowed with differential-geometric structures VI.CR-submanifolds in a manifold of almost-contact structure

, 1989
N. D. Polyakov
semanticscholar   +1 more source

Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly  

On the existence of a complex almost contact structure

, 1978
Y. Shibuya
semanticscholar   +1 more source

Contact-Projective Transformations of Almost Contact Metric Structure

Journal of Mathematical Sciences, 2023
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Slant Submanifolds of Almost Contact Metric 3-Structure Manifolds

, 2013
Fereshteh Malek, M. B. K. Balgeshir
semanticscholar   +1 more source

On almost contact metric 1-hypersurfaces in Kählerian manifolds

Siberian mathematical journal, 2014
M. Banaru
semanticscholar   +2 more sources