Results 61 to 70 of about 38,523 (104)

Generalized Almost Schouten Solitons in LP-Sasakian Geometry and Relativistic Spacetimes

open access: yesAppliedMath
The objective of this work is to characterize certain geometric aspects of LP-Sasakian (LPS) manifolds admitting a generalized almost Schouten soliton (GASS) and to prove that a such manifold with GASS is of constant scalar curvature.
Sunil Kumar Yadav   +2 more
doaj   +1 more source

Geometric structure of Galilean spacetimes admitting a conformally Leibnizian vector field

open access: yesPhysica Scripta
In this paper we study the geometric structure of Galilean spacetimes that possess a certain type of infinitesimal symmetries. Specifically, we assume the existence of vector fields whose flow generates conformal transformations of the Leibnizian ...
Daniel de la Fuente   +2 more
semanticscholar   +1 more source

Lorentzian manifolds equipped with a concircularly semi-symmetric metric connection [PDF]

open access: yesJournal of Geometry and Physics
Building upon previous works characterizing GRW space-times using concircular and torse-forming vectors, this paper investigates a Lorentzian manifold equipped with a concircularly semi-symmetric metric connection.
Miroslav Maksimovic   +2 more
semanticscholar   +1 more source

Impact of Solitonic Structures on Kählerian Norden Space-Times

open access: yesAxioms
This manuscript investigates conformal η-Ricci–Yamabe solitons of type (κ,l) on Kählerian Norden space-time admitting a Kählerian Norden torse-forming vector field.
Sahar H. Nazra   +3 more
doaj   +1 more source

SOME RESULTS ON YAMABE SOLITONS ON NEARLY HYPERBOLIC SASAKIAN MANIFOLDS [PDF]

open access: yes
We classify almost Yamabe on nearly hyperbolic Sasakian manifolds whose potential vector field is torse-forming admitting semi-symmetric metric connection and quarter symmetric non-metric connection. Certain results of such solitons on CR-submanifolds of
Siddiqi, Mohd. Danish   +2 more
core   +1 more source

$\eta$-Ricci solitons in $(\varepsilon)$-almost paracontact metric manifolds [PDF]

open access: yes, 2017
The object of this paper is to study $\eta$-Ricci solitons on $(\varepsilon)$-almost paracontact metric manifolds. We investigate $\eta$-Ricci solitons in the case when its potential vector field is exactly the characteristic vector field $\xi$ of the $(\
Blaga, Adara Monica   +3 more
core   +1 more source

Characterizations of a Lorentzian Manifold with a semi-symmetric metric connection [PDF]

open access: yes
In this article, we characterize a Lorentzian manifold $\mathcal{M}$ with a semi-symmetric metric connection. At first, we consider a semi-symmetric metric connection whose curvature tensor vanishes and establish that if the associated vector field is a ...
De, Krishnendu   +3 more
core   +2 more sources

Certain vector fields on f-Kenmotsu manifold with Schouten-van Kampen connection

open access: yesFilomat
The present study investigates various characteristics of conformal Ricci solitons with a Schouten-van Kampen connection. Characterizations are obtained when the potential vector field involves a torse-forming vector field.
Vaishali Sah, S. Yadav, J. Upreti
semanticscholar   +1 more source

Algorithm of flux reference forming for vector controled induction motor in field weakening region for traction applications [PDF]

open access: yes, 2014
Разработан алгоритм формирования заданного потокосцепления в режиме ослабления поля для систем векторного управления моментом-потоком асинхронных двигателей тягового назначения. Предложенное решение позволяет эффективно ограничивать напряжение статора на
Воронко, А.Б.
core   +5 more sources

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