Results 111 to 120 of about 3,068 (120)

Anti-invariant Riemannian submersions from almost Hermitian manifolds

Open Mathematics, 2010
Ṣahin Bayram
doaj   +1 more source

Real hypersurfaces in complex two-plane Grassmannians whose normal Jacobi operator is of Codazzi type

Open Mathematics, 2011
Machado Carlos, Dios Pérez Juan, Jeong Imsoon, Suh Young   +3 more
doaj   +1 more source

On the structure vector field of a real hypersurface in complex two-plane Grassmannians

Open Mathematics, 2012
Machado Carlos, Pérez Juan
doaj   +1 more source

On Galilean connections and the first jet bundle

Open Mathematics, 2012
Grant James, Lackey Bradley
doaj   +1 more source

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On generalized weakly (Ricci) $\phi $-symmetric Lorentzian Para Sasakian manifold

, 2020
The present paper attempt to introduce the notion of generalized weakly φ-symmetric and generalized weakly Ricci φ-symmetric Lorentzian Para Sasakian manifold.
M. R. Bakshi, K. Baishya, Dr. Ashis Biswas   +2 more
semanticscholar   +1 more source

* - Ricci solitons on ε-para sasakian 3-manifolds

, 2020
In the present paper we study ∗-Ricci solitons in ( )−para Sasakian manifolds and prove that if an ( )−para Sasakian 3-manifold with constant scalar curvature admits a ∗-Ricci soliton, then the ∗-Ricci soliton is steady if and only if £V ξ is g ...
K. De, India Kabi Sukanta Mahavidyalaya, C. Dey   +2 more
semanticscholar   +1 more source

On Ricci Curvature of Certain Submanifolds in a Cosymplectic Space Form

Sarajevo Journal of Mathematics
In this paper, we obtain some sharp inequalities between the Ricci curvature and the squared mean curvature for slant, bi-slant and semi-slant submanifolds in cosymplectic space forms.
Ximin Liu, Jian-ping Zhou
semanticscholar   +1 more source

Screen Transversal Lightlike Submanifolds of Indefinite Kenmotsu Manifolds

Sarajevo Journal of Mathematics
In this paper, we introduce screen transversal lightlike submanifolds of indefinite Kenmotsu manifolds. We obtain a characterization of screen transversal anti-invariant lightlike submanifolds as well as a condition for induced connection to be a metric ...
Ram Shankar Gupta, A. Sharfuddin
semanticscholar   +1 more source

Warped Product Lightlike Submanifolds

Sarajevo Journal of Mathematics
e study a new class of lightlike submanifolds $M$, called warped product lightlike submanifolds, of a semi-Riemann manifold. We show that the null geometry of $M$ reduces to the corresponding non-degenerate geometry of its semi-Riemann submanifold ...
Bayram Şahin
semanticscholar   +1 more source

-Ricci Solitons On Sasakian Manifolds Admitting General Connection

Journal of Mountain Research
In this paper we study -Ricci soliton on Sasakian manifolds admitting general connection and obtain some conditions for the soliton to be shrinking, steady and expanding. MSC 2020: 53C15, 53C25, 53D15.
Pawan Bhatt, SK Chanyal
semanticscholar   +1 more source