Results 41 to 50 of about 267,027 (130)
η -Ricci Solitons on Kenmotsu 3-Manifolds [PDF]
Annals of West University of Timisoara - Mathematics and Computer Science, 2018 Abstract In the present paper we study η -Ricci solitons on Kenmotsu 3-manifolds. Moreover, we consider η -Ricci solitons on Kenmotsu 3-manifolds with Codazzi type of Ricci tensor and cyclic parallel Ricci tensor.
De Krishnendu, De Uday Chand
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Foliations and Chern-Heinz inequalities
, 2006 We extend the Chern-Heinz inequalities about mean curvature and scalar curvature of graphs of $C^{2}$-functions to leaves of transversally oriented codimension one $C^{2}$-foliations of Riemannian manifolds.
Cheeger +7 more
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Generalized Kenmotsu Manifolds
, 2014 In 1972, K. Kenmotsu studied a class of almost contact Riemannian manifolds. Later, such a manifold was called a Kenmotsu manifold. This paper, we studied Kenmotsu manifolds with $(2n+s)$-dimensional $s-$contact metric manifold and this manifold, we have called generalized Kenmotsu manifolds. Necessary and sufficient condition is given for an almost $s-
VANLI, AYSEL, SARI, RAMAZAN
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TURKISH JOURNAL OF MATHEMATICS, 2013 We prove that on a nearly Kenmotsu manifold a second-order symmetric closed recurrent tensor is a multiple of the associated metric tensor. We then find the necessary condition under which a vector field on a nearly Kenmotsu manifold will be a strict contact or Killing vector field.
Behzad NAJAFI +1 more
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The Schouten-van Kampen affine connection adapted to an almost (para) contact metric structure
, 2013 We study the Schouten-van Kampen connection associated to an almost contact or paracontact metric structure. With the help of such a connection, some classes of almost (para) contact metric manifolds are characterized.
Olszak, Zbigniew
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Certain vector fields on f-Kenmotsu manifold with Schouten-van Kampen connection
FilomatThe present study investigates various characteristics of conformal Ricci solitons with a Schouten-van Kampen connection. Characterizations are obtained when the potential vector field involves a torse-forming vector field.
Vaishali Sah, S. Yadav, J. Upreti
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Thoracic Cancer, Volume 16, Issue 10, May 2025.Intra‐tumoral GDF‐15 expression was assessed in advanced NSCLC patients receiving PD‐1/PD‐L1 monotherapy. GDF‐15 high levels were strongly associated with cancer cachexia and significantly poorer clinical outcomes, suggesting its potential as a predictive biomarker for immunotherapy efficacy.
Naoya Nishioka +14 more
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Sewing cells in almost cosymplectic and almost Kenmotsu geometry [PDF]
, 2012 For a finite family of 3-dimensional almost contact metric manifolds with closed the structure form $\eta$ is described a construction of an almost contact metric manifold, where the members of the family are building blocks - cells.
Dacko, Piotr
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On LP-Kenmotsu Manifold with Regard to Generalized Symmetric Metric Connection of Type (α, β)
MathematicsIn the current article, we examine Lorentzian para-Kenmotsu (shortly, LP-Kenmotsu) manifolds with regard to the generalized symmetric metric connection ∇G of type (α,β).
D. G. Prakasha +3 more
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Lorentzian Para‐Kenmotsu Manifolds Within the Framework of ∗‐Conformal η‐Ricci Soliton
Journal of Applied Mathematics, Volume 2025, Issue 1, 2025.The present article intends to study the ∗‐conformal η‐Ricci soliton on n‐LPK (n‐dimensional Lorentzian para‐Kenmotsu) manifolds with curvature constraints. On n‐LPK, we derive certain results of ∗‐conformal η‐Ricci soliton satisfying the Codazzi‐type equation, R(ξ, L) · S = 0, the projective flatness of the n‐LPK manifold. At last, we conclude with an
Shyam Kishor +4 more
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