REPOSITORY.ENU

Просмотр по теме "Observational constraints"

Просмотр по теме "Observational constraints"

Отсортировать по:Порядку:Результатам:

  • A comprehensive parametrization approach for the Hubble parameter in scalar field dark energy models 
    Koussour, M.; Myrzakulov, N.; Myrzakulova, S.; Sofuoğlu, D. (Results in Physics, 2023)
    This study proposes a novel parametrization approach for the dimensionless Hubble parameter i.e. 𝐸2 (𝑧) = 𝐴(𝑧) + 𝛽(1 + 𝛾𝐵(𝑧)) in the context of scalar field dark energy models. The parametrization is characterized ...
  • Exploring cosmological evolution and constraints in f(T) teleparallel gravity 
    Koussour, M.; Altaibayeva, A.; Bekov, S.; Holmurodov, F.; Muminov, S.; Rayimbaev, J. (Physics of the Dark Universe, 2024)
    This study explores the extension of teleparallel gravity within the framework of general relativity, introducing an algebraic function f(T) dependent on the torsion scalar T. Motivated by the teleparallel formulation, we ...
  • Late-time cosmology in f(Q, L_m) gravity: Analytical solutions and observational fits 
    Myrzakulov, Yerlan; Donmez, O.; Koussour, M.; Alizhanov, D.; Bekchanov, S.; Rayimbaev, J. (Physics of the Dark Universe, 2024)
    In this study, we examined the late-time cosmic expansion of the universe within the framework of gravity, where denotes the non-metricity and represents the matter Lagrangian. We analyzed a linear model of the form . ...
  • Observational analysis of late-time acceleration in f(Q,Lm) gravity 
    Myrzakulov, Kairat; Koussour, M.; Donmez, O.; Cilli, A.; Gudekli, E.; Rayimbaev, J. (Journal of High Energy Astrophysics, 2024)
    In this study, we explored late-time cosmology within an extended class of theories based on f(Q,Lm) gravity. This theory generalizes f(Q) gravity by incorporating a non-minimal coupling between the non-metricity Q and the ...
  • Observational constraints on the equation of state of viscous fluid in f(R, T) gravity 
    Koussour, M.; Altaibayeva, A.; Bekov, S.; Donmez, O.; Muminov, S.; Rayimbaev, J. (Physics of the Dark Universe, 2024)
    In this paper, we investigate a cosmological model based on viscous gravity as a potential alternative to dark energy. This model incorporates bulk viscosity and is analyzed using an effective equation of state. We consider ...
  • Observational constraints on the equation of state of viscous fluid in f(R,T) gravity 
    Koussour, M.; Altaibayeva, A.; Bekov, S.; Donmez, O.; Muminov, S.; Rayimbaev, J. (Physics of the Dark Universe, 2024)
    In this paper, we investigate a cosmological model based on viscous f(R,T) gravity as a potential alternative to dark energy. This model incorporates bulk viscosity and is analyzed using an effective equation of state. We ...