Zobrazeno 1 - 10 of 35 pro vyhledávání: '"Krishnendu DE"'
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Akademický článek
Characterizations of generalized Robertson-Walker spacetimes concerning gradient solitons
Autor: Krishnendu De, Mohammad Nazrul Islam Khan, Uday Chand De
Publikováno v: Heliyon, Vol 10, Iss 4, Pp e25702- (2024)
In this article, we examine gradient type Ricci solitons and (m,τ)-quasi Einstein solitons in generalized Robertson-Walker (GRW) spacetimes. Besides, we demonstrate that in this scenario the GRW spacetime presents the Robertson-Walker (RW) spacetime
Externí odkaz: https://doaj.org/article/6a77ced20b4743b59adc0840ca3845a2
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2
Report
Characterizations of Perfect fluid spacetimes obeying $f(\mathcal{R})$-gravity equipped with different gradient solitons
Autor: Suh, Krishnendu De Young Jin, De, Uday Chand
Publikováno v: International Journal of Geometric Methods in Modern Physics Vol. 20, No. 10 (2023) 2350174 (15 pages)
The prime object of this article is to study the perfect fluid spacetimes obeying $f(\mathcal{R})$-gravity, when $\eta$-Ricci solitons, gradient $\eta$-Ricci solitons, gradient Einstein Solitons and gradient $m$-quasi Einstein solitons are its metric
Externí odkaz: http://arxiv.org/abs/2202.03254
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3
Report
Perfect fluid spacetimes and gradient solitons
Autor: De, Krishnendu De Uday Chand, Syied, Abdallah Abdelhameed, Turki, Nasser Bin, Alsaeed, Suliman
Publikováno v: Journal of Nonlinear Mathematical Physics, 29 (2022), 843-858
This article deals with the investigation of perfect fluid spacetimes endowed with concircular vector field. It is shown that in a perfect fluid spacetime with concircular vector field, the velocity vector field annihilates the conformal curvature te
Externí odkaz: http://arxiv.org/abs/2105.03149
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4
Ricci-Yamabe Solitons in f(R)-gravity
Autor: Krishnendu DE, U.c. DE
Publikováno v: International Electronic Journal of Geometry. 16:334-342
The main objective of this paper is to describe the perfect fluid spacetimes fulfilling $f(R)$-gravity, when Ricci-Yamabe, gradient Ricci-Yamabe and $\eta$-Ricci-Yamabe solitons are its metrics. We acquire conditions for which the Ricci-Yamabe and th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::63bf58364e285986e9f28e67dd7f67db
https://doi.org/10.36890/iejg.1234057
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6
Characterizations of perfect fluid spacetimes obeying f(ℛ)-gravity equipped with different gradient solitons
Autor: Krishnendu De, Young Jin Suh, Uday Chand De
Publikováno v: International Journal of Geometric Methods in Modern Physics.
The prime object of this paper is to study the perfect fluid spacetimes obeying [Formula: see text]-gravity, when [Formula: see text]-Ricci solitons, gradient [Formula: see text]-Ricci solitons, gradient Einstein solitons and gradient [Formula: see t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b14bc0b240d712b022b1167bf9d40709
https://doi.org/10.1142/s0219887823501748
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10
A note on gradient solitons on two classes of almost Kenmotsu manifolds
Autor: Krishnendu De, Uday Chand De
Publikováno v: International Journal of Geometric Methods in Modern Physics. 19
The purpose of the paper is to characterize gradient [Formula: see text]-quasi Einstein solitons within the framework of two classes of almost Kenmotsu Manifolds. Finally, we consider an example to justify a result of our paper.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ec3c070d8094a28abd976502a7046bc
https://doi.org/10.1142/s0219887822502139
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