Almost contact structure - Open Access .click

International Journal of Geometric Methods in Modern Physics, 2020
We introduce almost contact and cosymplectic Finsler manifolds. Then, we characterize almost contact Randers metrics. It is proved that a cosymplectic Finsler manifold of constant flag curvature must have vanishing flag curvature. We prove that every cosymplectic Finsler manifold is a Landsberg space, under a mild condition.
Tayebeh Tabatabaeifar, Behzad Najafi, Mehdi Rafie-Rad +2 more
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Almost Contact Metric Structures on the Hypersurface of Almost Hermitian Manifolds

Journal of Mathematical Sciences, 2015
This is a review paper on the theories of almost contact, almost Hermitian and Kenmotsu structures and their use in classical differential geometry. The authors give a very comprehensive account on the historical development of these structures using only Riemannian metrics, although modern applicable studies on these structures have been extended ...
Banaru, M. B., Kirichenko, V. F.
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Invariant almost contact structures and connections on the Lobachevsky space

Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rastrepina, A. O., Surina, O. P.
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almost contact metric structure
53c15
almost contact and almost symplectic manifolds

differential geometry math.dg
mathematics - differential geometry
fos: mathematics

riemannian manifolds
53.52
53.80