Friedmann Cosmology with Bulk Viscosity &Variable Deceleration Parameter

Abstract

In this paper, we have studied FRW universe with bulk viscous fluid and cosmological term. The deceleration parameter q in the model is assumed to be an appropriate function of the Hubble value H, leading to the time-dependent deceleration parameter q, and therefore we have solved the field equations analytically. The universe model depicts a transitional phase between the previous, slower-moving cosmos and the current, faster-moving universe. Along with the stability of the outcome, the physical, geometric, and kinematic behavior of the model have also been examined. The solutions are found to be in excellent agreement with the latest astrophysical findings.