Results 81 to 90 of about 8,119 (142)

Critical Phenomena in Gravitational Collapse. [PDF]

Living Rev Relativ, 1999
Gundlach C.
europepmc   +1 more source

Nonminimal coupling, quantum scalar field stress-energy tensor and energy conditions on global anti-de Sitter space-time. [PDF]

Gen Relativ Gravit
Namasivayam S, Winstanley E.
europepmc   +1 more source

Characteristic Evolution and Matching. [PDF]

Living Rev Relativ, 2012
Winicour J.
europepmc   +1 more source

Theorems on Existence and Global Dynamics for the Einstein Equations. [PDF]

Living Rev Relativ, 2005
Rendall AD.
europepmc   +1 more source

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Characterization of Almost η-Ricci–Yamabe Soliton and Gradient Almost η-Ricci–Yamabe Soliton on Almost Kenmotsu Manifolds

Acta Mathematica Sinica, English Series, 2023
\textit{S. Güler} and \textit{M. Crasmareanu} [Turk. J. Math. 43, No. 5, 2631--2641 (2019; Zbl 1433.53125)] introduced a new geometric flow under the name of Ricci-Yamabe flow because it is a scalar combination of the well-known Ricci and Yamabe flows. The paper under review is concerned with the notion of \(\eta \)-Ricci-Yamabe soliton in the setting ...
Mondal, Somnath, Dey, Santu, Bhattacharyya, Arindam   +2 more
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Ricci almost soliton and almost Yamabe soliton on Kenmotsu manifold

Asian-European Journal of Mathematics, 2020
We prove that a Ricci almost soliton on a Kenmotsu manifold of dimension [Formula: see text] reduces to an expanding Ricci soliton satifying certain condition on the potential vector field or on the soliton function. Next, we show that any Ricci almost soliton on a Kenmotsu manifold is trivial (Einstein) if the soliton vector leaves the contact form ...
Amalendu Ghosh
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Conformal Ricci soliton and almost conformal Ricci soliton in paracontact geometry

International Journal of Geometric Methods in Modern Physics, 2022
In this paper, we study conformal Ricci soliton and almost conformal Ricci soliton within the framework of paracontact manifolds. Here, we have shown the characteristics of the soliton vector field and the nature of the manifold if para-Sasakian metric satisfies conformal Ricci soliton. We also demonstrate the feature of the soliton vector field V and
S. Dey
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K-contact metrics as Ricci almost solitons

Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
D. Patra
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From Ricci Soliton to Almost Contact Metric Structures

International Electronic Journal of Geometry
In this paper, we construct almost contact metric structures on a three-dimensional Riemannian manifold equipped with an almost Ricci soliton. Then, we give the techniques necessary to define the nature of such structures. Concrete examples are given.
Beldjilali Gherici
openaire   +4 more sources