• The effect of thermal radiation on singularities in the dark universe 

      Brevik, Iver Håkon; Timoshkin, A. V.; Paul, Tanmoy (Peer reviewed; Journal article, 2021)
      Cosmological models with an inhomogeneous viscous dark fluid, coupled with dark matter in the Friedmann–Robertson–Walker (FRW) flat universe, are considered. The influence of thermal effects caused by Hawking radiation on ...
    • Holographic cosmology with two coupled fluids in the presence of viscosity 

      Brevik, Iver Håkon; Timoshkin, A. V. (Peer reviewed; Journal article, 2021)
      We explore the cosmological models of the late-time universe based on the holographic principle, taking into account the properties of the viscosity of the dark fluid. We use the mathematical formalism of generalized ...
    • Inflation in terms of a viscous van der Waals coupled fluid 

      Brevik, Iver Håkon; Obukhov, V. V.; Timoshkin, A. V. (Journal article; Peer reviewed, 2018)
      We propose to describe the acceleration of the universe by introducing a model of two coupled fluids. We focus on the accelerated expansion at the early stages. The inflationary expansion is described in terms of a van der ...
    • Viscous coupled fluids in terms of a log-corrected equation-of-state 

      Brevik, Iver Håkon; Myrzakulov, K.; Timoshkin, A. V.; Zhadyranova, A. (Peer reviewed; Journal article, 2021)
      In this paper, we consider a class of cosmological fluids that possess properties analogous to those of crystalline solids undergoing isotropic deformations. Our research is based on a modified log-corrected power-law ...