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5 papers · 2 filters
Cosmology in symmetric teleparallel gravity and its dynamical system
Jianbo Lu, Xin Zhao, Guoying Chee
We explore an extension of the symmetric teleparallel gravity denoted the theory, by considering a function of the nonmetricity invariant as the gravitational Lagrangian…
Diagnosing Tsallis Holographic Dark Energy models with interactions
Nan Zhang, Ya-Bo Wu, Jia-Nan Chi +2
It has been found that the geometrical diagnostic methods can break the degeneracy for dark energy models. In this paper, we investigate the diagnostic, the statefinder hierar…
Observational constraints of a new unified dark fluid and the tension
Weiqiang Yang, Supriya Pan, Andronikos Paliathanasis +2
Unified cosmological models have received a lot of attention in astrophysics community for explaining both the dark matter and dark energy evolution. The Chaplygin cosmologies, a w…
Linearized modified gravity theories and gravitational waves physics in the GBD theory
Jianbo Lu, Yan Wang, Xin Zhao
The generalized Brans-Dicke (abbreviated as GBD) theory is obtained by replacing the Ricci scalar in the original Brans-Dicke (BD) action with an arbitrary function . Com…
Dynamics of nonlinear interacting dark energy models
Andronikos Paliathanasis, Supriya Pan, Weiqiang Yang
We investigate the cosmological dynamics of interacting dark energy models in which the interaction function is a nonlinear in terms of the energy densities. Considering explicitly…