Results 91 to 100 of about 218 (125)

A Condition for a Sasakian Manifold to Be of Constant Curvature

, 2010
In this paper we give a generalization of some results due to T. Takahashi [5] and M. Okumura [4]. Explicitly, we study an equation of the form R(X,Y)A=0 where X,Y are arbitrary vector fields on a Sasakian manifold and A a (1,3)-tensor field which ...
Ioan, Alin Cristian; Bucharest University, Ioan, Catalin Angelo; Danubius University of Galati   +1 more
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Weyl uzaylarında Einstein tensörünü koruyan konform dönüşümler

, 2013
Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2013This work contains four chapters. In Chapter 1, the fundamental definitions and properties concerning the Weyl manifolds are given.
Gürlek, Merve
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Some results on (k,μ)′ - almost Kenmotsu manifolds

, 2018
In this paper, we study the Weyl conformal curvature tensor W and the concircular curvature tensor C on a (k, μ)′-almost Kenmotsu manifold M2n+1 of dimension greater than 3.
Wang, Yaning, Wang, Wenjie
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Ricci solitons in N(K)-manifold

, 2019
[[abstract]]Recently, the present authors have introduced the notion of generalized quasi-conformal curvature tensor which bridges Conformal curvature tensor, Concircular curvature tensor, Projective curvature tensor and Conharmonic curvature tensor. The
T. P. Chowdhury, P. R. Chowdhury, K. K. Baishya   +2 more
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A General Type of Almost Contact Manifolds

Among almost contact manifolds Sasakian manifolds, Kenmotsu manifolds (called also “a certain class of almost contact manifolds”) and cosymplectic manifolds have been studied by many authors.
Catalin Angelo Ioan
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Variational problems of normal curvature tensor and concircular scalarfields

Variational problems of normal curvature tensor and concircular scalarfields
We consider the integral of (the square of) the length of the normal curvature tensor for immersions of manifolds into real space forms, especially into spheres. The first variation formula is given and the Euler-Lagrange equation is expressed in terms of the isothermal coordinates when the submanifold is two-dimensional.
openaire  

Semi-symmetry type LP-Sasakian manifolds

, 2017
Recently the present authors have introduced the notion of generalized quasi-conformal curvature tensor $W$, which bridges conformal curvature tensor, concircular curvature tensor, projective curvature tensor and conharmonic curvature tensor. The present
Chowdhury, Partha Roy, Baishya, Kanak Kanti   +1 more
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A note on concircular curvature tensor in Lorentzian almost para-contact geometry

Journal of Mathematical and Computational Science, 2021
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Lorentzian α_Sasakian Manifolds Satisfying Certain Condition on the Concircular Curvature Tensor

Journal of the Tensor Society, 2013
Vibhawari Srivastava, Sunil Kumar Srivastava   +1 more
openaire   +1 more source

Some results on Generalized Sasakian space forms

, 2018
In this paper we study the $W_3\cdot R=0,$ $\tilde{C}\cdot W_3=0,$ $P\cdot W_3=0,$ $W_3\cdot Q=0,$ $Q\cdot W_3=0,$ where $\tilde{C}$ is the Concircular curvature tensor, $P$ is the projective curvature tensor, $W_3$ curvature tensor in generalized ...
Ingalahalli, Gurupadavva
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