Results 51 to 60 of about 548,040 (122)

On h-almost conformal η-Ricci-Bourguignon soliton in a perfect fluid spacetime [PDF]

open access: yes
The primary object of the paper is to study h-almost conformal η-Ricci-Bourguignon soliton in an almost pseudo-symmetric Lorentzian Kähler spacetime manifold when some different curvature tensors vanish identically.
Pahan, Sampa
core   +1 more source

D-homothetically deformed Kenmotsu metric as a Ricci soliton [PDF]

open access: yes, 2018
In this paper we study the nature of Ricci solitons in D-homothetically deformed Kenmotsu manifolds. We prove that η-Einstein Kenmotsu metric as a Ricci soliton remains η-Einstein under D-homothetic deformation and the scalar curvature remains ...
Kiran Kumar, D.L.   +2 more
core   +1 more source

Randers Ricci soliton homogeneous nilmanifolds [PDF]

open access: yes, 2019
Let $F$ be a left invariant Randers metric on a simply connected nilpotent Lie group $N$, induced by a left invariant Riemannian metric ${\hat{\textbf{\textit{a}}}}$ and a vector field $X$ which is $I_{\hat{\textbf{\textit{a}}}}(M)$-invariant.
Moghaddam, Hamid Reza Salimi
core   +1 more source

Conformal Submersions Whose Total Manifolds Admit a Ricci Soliton [PDF]

open access: yes, 2023
In this paper, we study conformal submersions from Ricci solitons to Riemannian manifolds with non-trivial examples. First, we study some properties of the O'Neill tensor $A$ in the case of conformal submersion.
Meena, Kiran, Yadav, Akhilesh
core   +1 more source

Study of η‐Ricci–Yamabe Solitons and Ricci–Yamabe solitons in a Lorentzian Nearly Kähler Space‐Time Manifold

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
An η‐Ricci–Yamabe solitons is a notion of both Ricci and Yamabe solitons, defined by a geometric equation involving a tensor field, which has applications in general relativity and cosmology. The objective of the present research is to examine η‐Ricci–Yamabe solitons and Ricci–Yamabe solitons on covariant projectively flat and concircularly flat ...
B. B. Chaturvedi   +3 more
wiley   +1 more source

SOME TYPES OF η-RICCI SOLITONS ON LORENTZIAN PARA-SASAKIAN MANIFOLDS [PDF]

open access: yes, 2018
In this paper we study some types of  η-Ricci solitons on Lorentzianpara-Sasakian manifolds and we give an example of  η-Ricci solitons on 3-dimensional Lorentzian para-Sasakian manifold. We obtain the conditions of  η-Ricci soliton on ϕ-conformally flat,
Singh, Abhishek, Kishor, Shyam
core   +1 more source

Geometric Characterizations of Riemann Solitons

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
In this paper, we find the geometric characterizations of Riemann solitons within the background of co‐Kähler manifolds admitting semisymmetric metric ζ‐connection. Let (g, V) be a Riemann soliton on a co‐Kähler manifold M admitting a semisymmetric metric ζ‐connection.
Abdul Haseeb   +4 more
wiley   +1 more source

A spinorial energy functional: Critical points and gradient flow [PDF]

open access: yes, 2012
On the universal bundle of unit spinors we study a natural energy functional whose critical points, if dimM C 3, are precisely the pairs (g,φ) consisting of a Ricci-flat Riemannian metric g together with a parallel g-spinor φ.
Hartmut Weiss   +5 more
core   +1 more source

A Study of Hyperbolic Yamabe Solitons on Nonreductive Four‐Dimensional Homogeneous Manifolds

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
The study of geometric structures on homogeneous pseudo‐Riemannian spaces (G/H, g) has long been an important area of research in differential geometry. Such spaces are characterized by the transitive action of a Lie group G, with the metric g being G‐invariant using mathematical operators.
Foued Aloui   +4 more
wiley   +1 more source

Modified Ricci flow on a principal bundle [PDF]

open access: yes, 2008
textLet M be a Riemannian manifold with metric g, and let P be a principal G-bundle over M having connection one-form a. One can define a modified version of the Ricci flow on P by fixing the size of the fiber.
Young, Andrea Nicole, 1979-
core  

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