Results 61 to 70 of about 1,722 (148)

On an (ε,δ)-trans-Sasakian structure; pp. 20–28 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2012
In this paper we investigate (ε,δ)-trans-Sasakian manifolds which generalize the notion of (ε)-Sasakian and (ε)-Kenmotsu manifolds. We prove the existence of such a structure by an example and we consider φ-recurrent, pseudo-projectively flat and ...
Halammanavar G. Nagaraja   +2 more
doaj   +1 more source

Lightlike Hypersurfaces in Indefinite Trans-Sasakian Manifolds [PDF]

open access: yesResults in Mathematics, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Optimal Inequalities on (α,β)-Type Almost Contact Manifold with the Schouten–Van Kampen Connection

open access: yesAxioms, 2023
In the current research, we develop optimal inequalities for submanifolds in trans-Sasakian manifolds or (α,β)-type almost contact manifolds endowed with the Schouten–Van Kampen connection (SVK-connection), including generalized normalized δ-Casorati ...
Mohd Danish Siddiqi, Ali H. Hakami
doaj   +1 more source

The Sasaki Join, Hamiltonian 2-forms, and Constant Scalar Curvature [PDF]

open access: yes, 2015
We describe a general procedure for constructing new Sasaki metrics of constant scalar curvature from old ones. Explicitly, we begin with a regular Sasaki metric of constant scalar curvature on a 2n+1-dimensional compact manifold M and construct a ...
Charles P. Boyer   +2 more
core   +1 more source

Da‐Homothetic Deformation of K‐Contact Manifolds

open access: yesInternational Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013
We study Da‐homothetic deformations of K‐contact manifolds. We prove that Da‐homothetically deformed K‐contact manifold is a generalized Sasakian space form if it is conharmonically flat. Further, we find expressions for scalar curvature of Da‐homothetically deformed K‐contact manifolds.
H. G. Nagaraja   +3 more
wiley   +1 more source

Kählerian Manifold on the Product of Two Trans-Sasakian Manifolds

open access: yesInternational Electronic Journal of Geometry, 2020
It's shown that for some changes of metrics and structural tensors, the product of two Trans-Sasakian manifolds is a K\"{a}hlerian manifold. This gives a new positive answer and more generally to Blair-Oubi$\tilde{n}$a's open question (see [7] and [17]). Concrete examples are given.                                                                     
Bouzir Habib, Beldjılalı Gherici
openaire   +4 more sources

Clairaut anti-invariant submersions from Lorentzian trans-Sasakian manifolds [PDF]

open access: yesArab Journal of Mathematical Sciences
Purpose – The central idea of this research article is to examine the characteristics of Clairaut submersions from Lorentzian trans-Sasakian manifolds of type (α, β) and also, to enhance this geometrical analysis with some specific cases, namely Clairaut
Mohd Danish Siddiqi   +2 more
doaj   +1 more source

Certain Results on Ricci Solitons in α‐Sasakian Manifolds

open access: yesGeometry, Volume 2013, Issue 1, 2013., 2013
We study Ricci solitons in α‐Sasakian manifolds and show that it is a shrinking or expanding soliton and the manifold is Einstein with Killing vector field. Further, we prove that if V is conformal Killilng vector field, then the Ricci soliton in 3‐dimensional α‐Sasakian manifolds is shrinking or expanding but cannot be steady.
S. R. Ashoka   +3 more
wiley   +1 more source

Ricci Solitons in (ε,δ)-Trans-Sasakian Manifolds

open access: yesInternational Journal of Analysis and Applications, 2017
We study Ricci solitons in (ε,δ)-trans-Sasakian manifolds. It is shown that a symmetric parallel second order covariant tensor in a (ε,δ)-trans-Sasakian manifold is a constant multiple of the metric tensor.
C.S. Bagewadi, Gurupadavva Ingalahalli
doaj   +2 more sources

Constructions in Sasakian Geometry

open access: yes, 2007
We describe various constructions in Sasakian geometry. First we generalize the join construction of the first two authors to arbitrary Sasakian manifolds.
Boyer, Charles P.   +2 more
core   +2 more sources

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