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Para-Ricci-like Solitons with Arbitrary Potential on Para-Sasaki-like Riemannian Π-Manifolds
Mathematics, 2022 Para-Ricci-like solitons with arbitrary potential on para-Sasaki-like Riemannian Π-manifolds are introduced and studied. For the studied soliton, it is proved that its Ricci tensor is a constant multiple of the vertical component of both metrics.
Hristo Manev, Mancho Manev
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Comprehensive quasi-Einstein spacetime with application to general relativity [PDF]
International Journal of Geometric Methods in Modern Physics (IJGMMP), 2021 The aim of this paper is to extend the notion of all known quasi-Einstein (QE) manifolds like generalized QE, mixed generalized QE manifold, pseudo generalized QE manifold and many more and name it comprehensive QE manifold [Formula: see text].
Punam Gupta, S. Singh
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The use of matlab platform to compte some geometric quantities of 3-manifold sol3 [PDF]
Journal of Hyperstructures, 2015 In this paper we use MATLAB platform [7, 8] to calculate some quantities of 3-manifold sol3 like Christoffel symbols, curvatures, Einstein tensor and plot the geodesics of this space.
Nemat Abazari, Masoud Sahraiy
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Bulgarian Journal of Physics, 2023 . In the present study the anisotropic spatially homogeneous Bianchi type-I (B-I) cosmological models in normal gauge for Lyra’s manifold has been studied.A deterministic solution by considering the time dependent deceleration parameter which gives ...
Shilpi Singhal +2 more
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A Characterization of GRW Spacetimes
Mathematics, 2021 We show presence a special torse-forming vector field (a particular form of torse-forming of a vector field) on generalized Robertson–Walker (GRW) spacetime, which is an eigenvector of the de Rham–Laplace operator.
Ibrahim Al-Dayel +2 more
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A new curvature-like tensor in an almost contact Riemannian manifold
Pracì Mìžnarodnogo Geometričnogo Centru, 2016 In a M. Prvanović’s paper [5], we can find a new curvature-like tensor in an almost Hermitian manifold.In this paper, we define a new curvature-like tensor, named contact holomorphic Riemannian, briefly (CHR), curvature tensor in an almost ...
Koji Matsumoto
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Suppression of non-manifold-like sets in the causal set path integral [PDF]
, 2017 While it is possible to build causal sets that approximate spacetime manifolds, most causal sets are not at all manifold-like. We show that a Lorentzian path integral with the Einstein–Hilbert action has a phase in which one large class of non-manifold ...
Samuel P. Loomis, S. Carlip
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Solitonic Aspect of Relativistic Magneto-Fluid Spacetime with Some Specific Vector Fields
Mathematics, 2023 The target of the current research article is to investigate the solitonic attributes of relativistic magneto-fluid spacetime (MFST) if its metrics are Ricci–Yamabe soliton (RY-soliton) and gradient Ricci–Yamabe soliton (GRY-soliton).
Mohd Danish Siddiqi +2 more
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Compact weak G_2-manifolds with conical singularities [PDF]
, 2003 We construct 7-dimensional compact Einstein spaces with conical singularities that preserve 1/8 of the supersymmetries of M-theory. Mathematically they have weak G_2-holonomy.
Acharya +19 more
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Pinching Theorems for Statistical Submanifolds in Sasaki-Like Statistical Space Forms
Entropy, 2018 In this paper, we obtain the upper bounds for the normalized δ -Casorati curvatures and generalized normalized δ -Casorati curvatures for statistical submanifolds in Sasaki-like statistical manifolds with constant curvature. Further,
Ali H. Alkhaldi +3 more
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