Results 61 to 70 of about 130 (98)

$\eta $-Ricci Solitons on $\eta $-Einstein $(LCS)_n$-Manifolds

, 2016
summary:The object of the present paper is to study $\eta $-Ricci solitons on $\eta $-Einstein $(LCS)_n$-manifolds. It is shown that if $\xi $ is a recurrent torse forming $\eta $-Ricci soliton on an $\eta $-Einstein $(LCS)_n$-manifold then $\xi $ is (i)
Hui, Shyamal Kumar, Chakraborty, Debabrata   +1 more
core   +1 more source

Pseudosymmetric and Weyl-pseudosymmetric $(\kappa , \mu )$-contact metric manifolds

, 2016
summary:In this paper we classify pseudosymmetric and Ricci-pseudosymmetric $(\kappa , \mu )$-contact metric manifolds in the sense of Deszcz.
Malekzadeh, N., De, U.C., Abedi, E.
core   +1 more source

On quasirecurrent manifolds [PDF]

summary:We introduce a type of Riemannian manifolds (namely, quasirecurrent manifold) and study its several geometric properties. Among others, we prove that the scalar curvature of such a manifold is constant, and that the manifold is Einstein under ...
Kim, Jaeman
core   +1 more source

Studies on Sasakian, Lorentzian para (LP)-Sasakian manifold and other related manifolds

, 2007
Ph.d ThesisThe study of tensors in differentiable manifolds that vary in structure have attracted many researchers. In this thesis out of many newly defined tensors W2 -curvature tensor and W4 -curvature tensor have been studied in Sasaki an, Para ...
Moindi, Stephen Kibet
core  

ON QUASI BI-SLANT RIEMANNIAN MAPS FROM LORENTZIAN PARA SASAKIAN MANIFOLDS

Journal of the Indonesian Mathematical Society
We first introduce quasi bi-slant Riemannian maps and study such Riemannian maps from Lorentzian para Sasakian manifolds into Riemannian manifolds. We give necessary and sufficient conditions for the integrability of the distributions which are involved in the definition of the quasi bi-slant Riemannian map and investigate their leaves.
Prasad, Rajendra, Kumar, Sushil, Singh, Punit Kumar   +2 more
openaire   +2 more sources

Second Order Parallel Tensors on LP-Sasakian Manifolds with a coefficient α

, 2017
In 1926, Levy [3] had proved that a second order symmetric parallel nonsingular tensor on a space of constant curvature is a constant multiple of the metric tensor.
Das, Lovejoy S.
core  

Cr-submanifolds of a lorentzian para-sasakian manifold with a semi-symmetric metric connection

, 2010
We study CR-submanifolds of a Lorentzian para-Sasakian manifold endowed with a semi-symmetric metric connection. Moreover, we obtain integrability conditions of the distributions on CR-submanifolds.
Özgür, Cihan, Ahmad, Mobin, Haseeb, Abdul   +2 more
openaire   +3 more sources

Pointwise slant semi-riemannian submersions from lorentzian para-sasakian manifolds

, 2019
The purpose of this paper is to study pointwise slant semi-Riemannian submersions from Lorentzian paraSasakian manifolds. Several basic results in this point of view are proven in this paper. Definition 1. Let F be a semi-Riemannian submersion from a Lorentzian (para) contact manifold (M, ?, ?, ?, gM) of dimension (2m+ 1) onto (N, gN ) be a Lorentzian ...
Mashmouli, Sahar, Faghfouri, Morteza
openaire   +1 more source

Semi-invariant submanifold of an indefinite Lorentzian para-Sasakian manifold

International Journal of Mathematical Analysis, 2021
openaire   +1 more source

Generalized CR-submanifolds of manifolds with a Lorentzian para Sasakian 3-structure

International Journal of Mathematical Analysis, 2022
Gajendra Singh, Vikash Kumar Sharma
openaire   +1 more source