Results 91 to 100 of about 7,482 (208)

Hyperbolic Ricci solitons on perfect fluid spacetimes

open access: yesAIMS Mathematics
In the present paper, we investigate perfect fluid spacetimes and perfect fluid generalized Roberston-Walker spacetimes that contain a torse-forming vector field satisfying almost hyperbolic Ricci solitons.
Shahroud Azami   +3 more
doaj   +1 more source

Homogeneous Ricci Solitons in Low Dimensions [PDF]

open access: yesInternational Mathematics Research Notices, 2014
20 pages, 3 tables; Appendix by Jorge ...
Arroyo, Romina M., Lafuente, Ramiro
openaire   +5 more sources

A Gradient Bound for the Allen-Cahn Equation Under Almost Ricci Solitons [PDF]

open access: yesSahand Communications in Mathematical Analysis
In this paper, we consider positive solutions for the Allen-Cahn equation\begin{equation*}\Delta u+\left(1-u^{2}\right)u=0,\end{equation*}on an almost Ricci soliton   without a boundary. Firstly, using volume comparison Theorem and Sobolev inequality, we
Sakineh Hajiaghasi, Shahroud Azami
doaj   +1 more source

Conformally Flat Siklos Metrics Are Ricci Solitons

open access: yesAxioms, 2020
We study and solve the Ricci soliton equation for an arbitrary locally conformally flat Siklos metric, proving that such spacetimes are always Ricci solitons.
Giovanni Calvaruso
doaj   +1 more source

Special Kähler–Ricci potentials and Ricci solitons [PDF]

open access: yesAnnals of Global Analysis and Geometry, 2008
On a manifold of dimension at least six, let $(g, )$ be a pair consisting of a K hler metric g which is locally K hler irreducible, and a nonconstant smooth function $ $. Off the zero set of $ $, if the metric $\hat{g}=g/ ^2$ is a gradient Ricci soliton which has soliton function $1/ $, we show that $\hat{g}$ is K hler with respect to another ...
openaire   +3 more sources

Ricci solitons: the equation point of view [PDF]

open access: yesmanuscripta mathematica, 2008
We discuss some classification results for Ricci solitons, that is, self similar solutions of the Ricci Flow. Some simple proofs of known results will be presented. In detail, we will take the equation point of view, trying to avoid the tools provided by considering the dynamic properties of the Ricci flow.
MANOLO EMINENTI   +2 more
openaire   +5 more sources

The Z‐Tensor on Almost Co‐Kählerian Manifolds Admitting Riemann Soliton Structure

open access: yesAdvances in Mathematical Physics, Volume 2024, Issue 1, 2024.
A Riemann soliton (RS) is a natural generalization of a Ricci soliton structure on pseudo‐Riemannian manifolds. This work aims at investigating almost co‐Kählerian manifolds (ACKM) 2n+1 whose metrics are Riemann solitons utilizing the properties of the Z‐tensor.
Sunil Kumar Yadav   +4 more
wiley   +1 more source

Ricci solitons on singly warped product manifolds and applications

open access: yes, 2019
TThe purpose of this article is to study the inheritance properties of Ricci soliton warped product manifolds by their factor manifolds. First, it is proved that being a Ricci soliton is an inheritance property.
Shenawy, Sameh
core  

Solitonic effect on relativistic string cloud spacetime attached with strange quark matter

open access: yesAIMS Mathematics
In this research paper, we discussed some geometric axioms of a relativistic string cloud spacetime attached with strange quark matter. We determined the conformal $ \eta $-Ricci soliton on a relativistic string cloud spacetime attached with strange ...
Yanlin Li   +4 more
doaj   +1 more source

∗−Conformal η−Ricci Solitons on α−Cosymplectic Manifolds

open access: yesInternational Journal of Analysis and Applications, 2021
The object of this paper is to study ∗−conformal η−Ricci solitons on α−cosymplectic manifolds. First, α−cosymplectic manifolds admitting ∗−conformal η−Ricci solitons satisfying the conditions R(ξ, .) · S and S(ξ, .) · R = 0 are being studied.
Abdul Haseeb, D. G. Prakasha, H. Harish
doaj  

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