Results 31 to 40 of about 144 (107)

Study on Twisted Product Almost Gradient Yamabe Solitons

open access: yesJournal of Mathematics, Volume 2021, Issue 1, 2021., 2021
In this paper, we first study gradient Yamabe solitons on the twisted product spaces. Then, we classify and characterize the warped product and twisted product spaces with almost gradient Yamabe solitons. We also study the construction of almost gradient Yamabe solitons in the Riemannian product spaces.
Byung Hak Kim   +3 more
wiley   +1 more source

Rigidity of geodesic incompleteness and conformal symmetries [PDF]

open access: yes, 2020
Se presenta un resultado de rigidez en geometría Lorentziana, relacionado con la conjetura de Bartnik, bajo la hipótesis de la existencia de un campo vectorial concircular con ciertas propiedades.
Franco Grisales, Andrés
core   +1 more source

Some Properties of Generalized Einstein Tensor for a Pseudo‐Ricci Symmetric Manifold

open access: yesAdvances in Mathematical Physics, Volume 2020, Issue 1, 2020., 2020
The object of the paper is to study some properties of the generalized Einstein tensor G(X, Y) which is recurrent and birecurrent on pseudo‐Ricci symmetric manifolds (PRS)n. Considering the generalized Einstein tensor G(X, Y) as birecurrent but not recurrent, we state some theorems on the necessary and sufficient conditions for the birecurrency tensor ...
S. Aynur Uysal   +2 more
wiley   +1 more source

Euclidean Submanifolds via Tangential Components of Their Position Vector Fields

open access: yesMathematics, 2017
The position vector field is the most elementary and natural geometric object on a Euclidean submanifold. The position vector field plays important roles in physics, in particular in mechanics. For instance, in any equation of motion, the position vector
Bang-Yen Chen
doaj   +1 more source

CERTAIN RESULTS OF RICCI-YAMABE SOLITONS ON $(LCS)_N$-MANIFOLDS [PDF]

open access: yes, 2022
The goal of this paper is to characterize Lorentzian concircular structure manifolds (briefly, $(LCS)_n$-manifolds) admitting Ricci-Yamabe solitons.
Zosangzuala, Chhakchhuak   +1 more
core   +1 more source

Hyperbolic conformal Ricci solitons and gradient hyperbolic conformal Ricci solitons on bulk viscous fluid string spacetime

open access: yesEuropean Physical Journal C: Particles and Fields
We explore the Geometrization of hyperbolic conformal Ricci solitons and examine the properties of bulk viscous fluid string spacetime in conjunction with the hyperbolic conformal Ricci solitons in this research note. A $$\varnothing ({\mathfrak {Q}})$$ ∅
Mohd Danish Siddiqi   +2 more
doaj   +1 more source

Curvature and Solitonic Structures of Para‐Sasakian Manifolds With Schouten–van Kampen Connection on the Tangent Bundle

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
This paper investigates the complete lift of para‐Sasakian structures to the tangent bundle equipped with the Schouten–van Kampen connection (SVKC). By analyzing curvature tensors and soliton equations, we establish the existence of Ricci, Yamabe, and η‐Ricci solitons in the lifted setting.
Lalnunenga Colney   +3 more
wiley   +1 more source

On the Differential Equation Governing Torqued Vector Fields on a Riemannian Manifold

open access: yes, 2020
In this article, we show that the presence of a torqued vector field on a Riemannian manifold can be used to obtain rigidity results for Riemannian manifolds of constant curvature. More precisely, we show that there is no torqued vector field on n-sphere
Nasser Bin Turki   +2 more
core   +1 more source

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

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
An η‐Ricci–Yamabe solitonss 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 solitonss and Ricci–Yamabe solitonss on covariant projectively flat and concircularly flat ...
B. B. Chaturvedi   +3 more
wiley   +1 more source

There Are No Conformal Einstein Rescalings of Pseudo-Riemannian Einstein Spaces with n Complete Light-Like Geodesics

open access: yesMathematics, 2019
In the present paper, we study conformal mappings between a connected n-dimension pseudo-Riemannian Einstein manifolds. Let g be a pseudo-Riemannian Einstein metric of indefinite signature on a connected n-dimensional manifold M.
Josef Mikeš   +2 more
doaj   +1 more source

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