Results 231 to 240 of about 24,571 (250)

Foliations and Complemented Framed Structures on an Almost Contact Metric Manifold

Mediterranean Journal of Mathematics, 2010
The author studies a Riemannian manifold equipped with a generalized quasi-Sasakian (GQS) structure, a structure generalizing the notions of Sasakian, quasi-Sasakian, Kenmotsu, cosymplectic (and other well known) structures. He provides conditions under which a natural foliation and a bundle-like metric on a GQS manifold arise.
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The components of the structure tensor of five-dimensional almost contact B-metric manifolds

Asian-European Journal of Mathematics, 2020
Almost contact [Formula: see text]-metric manifolds of the dimension 5 are considered. Our aim is to determine the corresponding components of the structure tensor of these manifolds. Some known examples of almost contact [Formula: see text]-metric manifolds are commented.
Ivanova, Miroslava, Dospatliev, Lilko
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On the classes of almost Hermitian structures on the tangent bundle of an almost contact metric manifold

Acta Mathematica Hungarica, 1990
If M is an almost contact metric manifold then by using some standard construction its tangent space TM becomes an almost Hermitian manifold. A classification for almost Hermitian manifolds was obtained by \textit{A. Gray} and \textit{L. M. Hervella} [Ann. Mat. Pura Appl., IV. Ser. 123, 35-58 (1980; Zbl 0444.53022)].
Bonome, A., Hervella, L. M., Rozas, I.
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Almost contact metric structures induced by G2G2 structures

2017
We study almost contact metric structures induced by 2-fold vector cross products on manifolds with G2 structures. We get some results on possible classes of almost contact metric structures. Finally, we give examples.
Özdemir, Nülifer, Solgun, Mehmet, Aktay, Şirin   +2 more
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On deformations of parallelG₂structures and almost contact metric structures

Advances in Geometry, 2017
AbstractIt is known that manifolds withG2structures have almost contact metric structures; see [3; 16]. In this manuscript, we deform a parallelG2structure by a parallel vector field and investigate the properties of the almost contact metric structure obtained by the deformation of theG2structure.
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A natural way to construct an almost complex B‐metric structure

Mathematical Methods in the Applied Sciences, 2021
Mehmet Solgun
exaly  

Taut almost cosymplectic hyperbolas and almost bi-contact metric structures on three-manifolds

Journal of Geometry and Physics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Almost contact metric manifolds with certain condition

Annals of Global Analysis and Geometry, 2023
Gherici Beldjilali
exaly  

Yamabe Solitons on Some Conformal Almost Contact B-Metric Manifolds

Mathematics, 2022
Mancho Manev, Manev Mancho
exaly  

Invariants of conformal transformations of almost contact metric structures

Mathematical Notes, 2009
V F Kirichenko, Kirichenko V F
exaly