Gradient Einstein-type spacetimes and modified gravity

Füsun Özen Zengin; Uday Chand De; Sezgin Altay Demirbag

doi:10.1007/s12648-025-03591-3

Gradient Einstein-type spacetimes and modified gravity

Füsun Özen Zengin^*
, Uday Chand De
, Sezgin Altay Demirbag

^*Bu çalışma için yazışmadan sorumlu yazar

Matematik Bölümü

University of Calcutta

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

Özet

In this work, at first, we investigate gradient Einstein-type spacetimes. After that, we study the properties of a gradient Einstein-type spacetime admitting a parallel vector field. In the next parts, we present a systematic study about gradient Einstein-type spacetime obeying f(R, T) and f(R,Lm) gravity theories. Finally, in the cosmological context we find some remarkable results.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	4003-4011
Sayfa sayısı	9
Dergi	Indian Journal of Physics
Hacim	99
Basın numarası	10
DOI'lar	https://doi.org/10.1007/s12648-025-03591-3
Yayın durumu	Yayınlandı - Eyl 2025

Bibliyografik not

Publisher Copyright:
© The Author(s) 2025.

Belgeye Erişim

10.1007/s12648-025-03591-3

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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abstract = "In this work, at first, we investigate gradient Einstein-type spacetimes. After that, we study the properties of a gradient Einstein-type spacetime admitting a parallel vector field. In the next parts, we present a systematic study about gradient Einstein-type spacetime obeying f(R, T) and f(R,Lm) gravity theories. Finally, in the cosmological context we find some remarkable results.",

keywords = "Dark matter era, Energy density, Generalized Robertson-Walker spacetime, Gradient Einstein-type spacetime, Isotropic pressure, Modified gravity, Parallel vector field, Perfect fluid, Phantom era, Roberton-Walker spacetime",

author = "Zengin, \{F{\"u}sun {\"O}zen\} and \{Chand De\}, Uday and \{Altay Demirbag\}, Sezgin",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2025.",

year = "2025",

month = sep,

doi = "10.1007/s12648-025-03591-3",

language = "English",

volume = "99",

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journal = "Indian Journal of Physics",

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TY - JOUR

T1 - Gradient Einstein-type spacetimes and modified gravity

AU - Zengin, Füsun Özen

AU - Chand De, Uday

AU - Altay Demirbag, Sezgin

N1 - Publisher Copyright: © The Author(s) 2025.

PY - 2025/9

Y1 - 2025/9

N2 - In this work, at first, we investigate gradient Einstein-type spacetimes. After that, we study the properties of a gradient Einstein-type spacetime admitting a parallel vector field. In the next parts, we present a systematic study about gradient Einstein-type spacetime obeying f(R, T) and f(R,Lm) gravity theories. Finally, in the cosmological context we find some remarkable results.

AB - In this work, at first, we investigate gradient Einstein-type spacetimes. After that, we study the properties of a gradient Einstein-type spacetime admitting a parallel vector field. In the next parts, we present a systematic study about gradient Einstein-type spacetime obeying f(R, T) and f(R,Lm) gravity theories. Finally, in the cosmological context we find some remarkable results.

KW - Dark matter era

KW - Energy density

KW - Generalized Robertson-Walker spacetime

KW - Gradient Einstein-type spacetime

KW - Isotropic pressure

KW - Modified gravity

KW - Parallel vector field

KW - Perfect fluid

KW - Phantom era

KW - Roberton-Walker spacetime

UR - https://www.scopus.com/pages/publications/105002357086

U2 - 10.1007/s12648-025-03591-3

DO - 10.1007/s12648-025-03591-3

M3 - Article

AN - SCOPUS:105002357086

SN - 0973-1458

VL - 99

SP - 4003

EP - 4011

JO - Indian Journal of Physics

JF - Indian Journal of Physics

IS - 10

ER -

Gradient Einstein-type spacetimes and modified gravity

Özet

Bibliyografik not

Belgeye Erişim

Diğer Dosyalar ve Linkler

Parmak izi

Alıntı Yap