6 papers
Testing the viability of gravity models via effective equation of state constraints
M. Koussour, O. Donmez, S. Bekov +3
This paper rigorously examines the potential of the theory as a promising framework for understanding the dark sector of the universe, particularly in relation…
Constraining gravity with bulk viscosity
Y. Myrzakulov, O. Donmez, M. Koussour +3
We investigate the influence of bulk viscosity on late-time cosmic acceleration within an extended gravity framework, where the non-metricity is non-minimally coupl…
Constraints on CDM cosmology using Cosmic Chronometers and Supernova data
Yerlan Myrzakulov, M. Koussour, M. Bulanbay +2
In this manuscript, we investigate the constraints on dynamical vacuum models within the framework of CDM cosmology by assuming a parameterization of the vacuum energy densi…
Bulk viscous matter in gravity: A path to cosmic acceleration
Kairat Myrzakulov, O. Donmez, M. Koussour +3
In this paper, we investigate the effects of varying bulk viscosity coefficients on cosmic evolution within the framework of teleparallel gravity. We…
Observational constraints on a generalized equation of state model
M. Koussour, S. Bekov, A. Syzdykova +3
We investigate the cosmological implications of a generalized total equation of state (EoS) model by constraining its parameters using observational datasets to effectively charact…
Observational constraints on freezing quintessence in a non-linear gravity
Yerlan Myrzakulov, M. Koussour, A. Caliskan +3
In this paper, we investigate the freezing quintessence scenario in late-time cosmic expansion using a non-linear gravity model, , where $Î…