Results 21 to 30 of about 131 (102)

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

Characterizing Inequalities for Biwarped Product Submanifolds of Sasakian Space Forms

open access: yesMathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
The biwarped product submanifolds generalize the class of product submanifolds and are particular case of multiply warped product submanifolds. The present paper studies the biwarped product submanifolds of the type ST×ψ1S⊥×ψ2Sθ in Sasakian space forms S¯c, where ST, S⊥, and Sθ are the invariant, anti‐invariant, and pointwise slant submanifolds of S¯c.
Meraj Ali Khan   +2 more
wiley   +1 more source

Invariant Submanifolds of Trans-Sasakian Manifolds [PDF]

open access: yesUkrainian Mathematical Journal, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bagewadi, C.S., Anitha, B.S.
openaire   +3 more sources

On weak symmetries of trans-Sasakian manifolds; pp. 213–223 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2009
The present paper deals with weakly symmetric and weakly Ricci symmetric trans-Sasakian manifolds. The existence of weakly Ricci symmetric trans-Sasakian manifolds is ensured by an example.
Absos Ali Shaikh, Shyamal Kumar Hui
doaj   +1 more source

On the Geometry of the Riemannian Curvature Tensor of Nearly Trans-Sasakian Manifolds

open access: yesAxioms, 2023
This paper presents the results of fundamental research into the geometry of the Riemannian curvature tensor of nearly trans-Sasakian manifolds. The components of the Riemannian curvature tensor on the space of the associated G-structure are counted, and
Aligadzhi R. Rustanov
doaj   +1 more source

On Lorentzian Trans-Sasakian manifolds

open access: yesCommunications Faculty Of Science University of Ankara Series A1Mathematics and Statistics, 2013
The object of the present paper is to study the Trans-Sasakianstructure on a manifold with Lorentzian metric. Several interesting results areobtained on the manifold. Also conformally *at Lorentzian Trans-Sasakianmanifolds have been studied. Next, in three- dimensional Lorentzian TransSasakian manifolds, explicit formulae for Ricci operator, Ricci ...
DE, U.c., DE, Krishnendu
openaire   +3 more sources

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

On invariant submanifolds of trans-Sasakian manifolds; pp. 29–37 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2012
The object of the present paper is to find necessary and sufficient conditions for invariant submanifolds of trans-Sasakian manifolds to be totally geodesic.
Avijit Sarkar, Matilal Sen
doaj   +1 more source

Characterizations of Trivial Ricci Solitons

open access: yesAdvances in Mathematical Physics, Volume 2020, Issue 1, 2020., 2020
Finding characterizations of trivial solitons is an important problem in geometry of Ricci solitons. In this paper, we find several characterizations of a trivial Ricci soliton. First, on a complete shrinking Ricci soliton, we show that the scalar curvature satisfying a certain inequality gives a characterization of a trivial Ricci soliton. Then, it is
Sharief Deshmukh   +3 more
wiley   +1 more source

On pseudo-slant submanifolds of trans-Sasakian manifolds; pp. 1–11 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2011
The object of the present paper is to study pseudo-slant submanifolds of trans-Sasakian manifolds. Integrability conditions of the distributions on these submanifolds are worked out.
Uday Chand De, Avijit Sarkar
doaj   +1 more source

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