Results 51 to 60 of about 143 (108)

Significance of Solitonic Fibers in Riemannian Submersions and Some Number Theoretic Applications

open access: yes, 2023
In this manifestation, we explain the geometrisation of η-Ricci–Yamabe soliton and gradient η-Ricci–Yamabe soliton on Riemannian submersions with the canonical variation.
Mohd Danish Siddiqi, Ali H. Hakami
core   +1 more source

On the global structure of conformal gradient solitons with nonnegative Ricci tensor [PDF]

open access: yes, 2012
In this paper we prove that any complete n-dimensional conformal gradient soliton with nonnegative Ricci tensor is either isometric to a direct product R x N^(n−1), or globally conformally equivalent to the Euclidean space R^n or to the round sphere S^n.
MAZZIERI, LORENZO   +6 more
core   +1 more source

Invariant solutions of gradient $k$-Yamabe solitons

open access: yes, 2021
The purpose of this paper is to study gradient $k$-Yamabe solitons conformal to pseudo-Euclidean space. We characterize all such solitons invariant under the action of an $(n-1)$-dimensional translation group. For rotational invariant solutions, we provide the classification of solitons with null curvatures.
Tokura, W.   +3 more
openaire   +2 more sources

Gradient solitons on twisted product manifolds and their applications in general relativity

open access: yes, 2022
In this paper, first, we find the necessary and sufficient condition for a Riemannian manifold to be the locally warped product. Then we investigate the existence of different types of gradient solitons, such as gradient (almost) Yamabe soliton ...
Gfiler, Sinem   +2 more
core   +1 more source

On Warped Product Gradient Yamabe Soliton

open access: yes, 2017
In this paper, we provide a necessary and sufficient conditions for the warped product $M=B\times_f F$ to be a gradient Yamabe soliton when the base is conformal to an n-dimensional pseudo-Euclidean space, which are invariant under the action of an (n-1)-dimensional translation group, and the fiber F is scalar-constant.
Tokura, Willian I.   +2 more
openaire   +2 more sources

Classification of gradient Yamabe soliton hypersurfaces of space forms

open access: yes, 2023
In this paper we investigate gradient Yamabe solitons, either steady or shrinking, that can be isometrically immersed into space forms as hypersurfaces that admit an upper bound on the norm of their second fundamental form.
Tokura, Willian Isao   +1 more
core   +1 more source

Integral pinched shrinking Ricci solitons [PDF]

open access: yes, 2016
. We prove that a n-dimensional, 4 ≤ n ≤ 6, compact gradient shrinking Ricci soliton satisfying a Ln/2-pinching condition is isometric to a quotient of the round Sn.
CATINO, GIOVANNI, Giovanni Catino
core   +1 more source

On the scalar curvature estimates for gradient Yamabe solitons

open access: yesKodai Mathematical Journal, 2013
Let (Mn,g) be a gradient Yamabe soliton Rg + Hess f = λg with Ricf1 ≥ K (see (1.3) for f1) and λ, K $in$ R are constants. In this paper, it is showed that for gradient shrinking Yamabe solitons, the scalar curvature R > 0 unless R ≡ 0 and (Mn,g) is the Gaussian soliton, and for gradient steady and expanding Yamabe solitons, R > λ unless R ≡ λ and (Mn,g)
Chu, Yawei, Wang, Xue
openaire   +2 more sources

Generalized Quasi Yamabe Gradient Solitons and Applications

open access: yes, 2020
The purpose of this article is to study generalized quasi Yamabe gradient solitons on warped product manifolds. First, we obtain some necessary and sufficient conditions for the existence of generalized quasi Yamabe gradient solitons equipped with the warped product structure. Then we study three important applications in the Lorentzian and the neutral
Güler, Sinem, Ünal, Bülent
openaire   +2 more sources

On noncompact quasi Yamabe gradient solitons

open access: yesDifferential Geometry and its Applications, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

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