Results 41 to 50 of about 28,239 (177)

η-∗-Ricci Solitons and Almost co-Kähler Manifolds

open access: yesMathematics, 2021
The subject of the present paper is the investigation of a new type of solitons, called η-∗-Ricci solitons in (k,μ)-almost co-Kähler manifold (briefly, ackm), which generalizes the notion of the η-Ricci soliton introduced by Cho and Kimura.
Arpan Sardar   +2 more
doaj   +1 more source

Notes on Ricci solitons in $f$-cosymplectic manifolds [PDF]

open access: yes, 2017
The purpose of this article is to study an $f$-cosymplectic manifold $M$ admitting Ricci solitons. Here we consider mainly two classes of Ricci solitons on $f$-cosymplectic manifolds. One is the class of contact Ricci solitons.
Chen, Xiaomin
core   +1 more source

Para-Ricci-Like Solitons on Riemannian Manifolds with Almost Paracontact Structure and Almost Paracomplex Structure

open access: yesMathematics, 2021
We introduce and study a new type of soliton with a potential Reeb vector field on Riemannian manifolds with an almost paracontact structure corresponding to an almost paracomplex structure.
Hristo Manev, Mancho Manev
doaj   +1 more source

Ricci solitons in three-dimensional paracontact geometry [PDF]

open access: yes, 2014
We completely describe paracontact metric three-manifolds whose Reeb vector field satisfies the Ricci soliton equation. While contact Riemannian (or Lorentz\-ian) Ricci solitons are necessarily trivial, that is, $K$-contact and Einstein, the paracontact ...
Calvaruso, Giovanni, Perrone, Antonella
core   +1 more source

Steady gradient Ricci soliton with curvature in $L^1$

open access: yes, 2012
We characterize complete nonnegatively curved steady gradient soliton with curvature in L 1 . We show that there are isometric to a product (( R 2 , g cigar ) × ( R n − 2 , eucl)) / Γ where Γ is a Bieberbach group of rank n − 2.
Alix Deruelle
semanticscholar   +1 more source

On the Almost $\eta-$Ricci Solitons on Pseudosymmetric Lorentz Generalized Sasakian Space Forms

open access: yesUniversal Journal of Mathematics and Applications, 2023
In this paper, we consider Lorentz generalized Sasakian space forms admitting almost $\eta-$Ricci solitons in some curvature tensors. Ricci pseudosymmetry concepts of \ Lorentz generalized Sasakian space forms admitting $\eta-$Ricci soliton have ...
Mehmet Atçeken, Tuğba Mert
doaj   +1 more source

η-Ricci Solitons on 3-dimensional Trans-Sasakian Manifolds

open access: yesCubo, 2020
In this paper, we study \( \eta \)-Ricci solitons on 3-dimensional trans-Sasakian manifolds. Firstly we give conditions for the existence of these geometric structures and then observe that they provide examples of \( \eta \)-Einstein manifolds.
Sampa Pahan
doaj   +1 more source

On Bochner Flat Kähler B-Manifolds

open access: yesAxioms, 2023
We obtain on a Kähler B-manifold (i.e., a Kähler manifold with a Norden metric) some corresponding results from the Kählerian and para-Kählerian context concerning the Bochner curvature. We prove that such a manifold is of constant totally real sectional
Cornelia-Livia Bejan   +2 more
doaj   +1 more source

A Hamiltonian approach to the cohomogeneity one Ricci soliton equations [PDF]

open access: yes, 2014
We show how to view the equations for a cohomogeneity one Ricci soliton as a Hamiltonian system with a constraint. We investigate conserved quantities and superpotentials, and use this to find some explicit formulae for Ricci solitons not of K\"ahler ...
Alejandro Betancourt de la Parra   +2 more
semanticscholar   +1 more source

Certain results for η-Ricci Solitons and Yamabe Solitons on quasi-Sasakian 3-Manifolds

open access: yesCubo, 2019
We classify quasi-Sasakian 3-manifold with proper η-Ricci soliton and investigate its geometrical properties. Certain results of Yamabe soliton on such manifold are also presented.
Sunil Kumar Yadav   +2 more
doaj   +1 more source

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