We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Dynamics of the universe with variable parameters that govern the gravitational interactions.
- Authors
Mishra, R. K.; Jain, Navya
- Abstract
The present study investigates the Friedmann–Lemaitre–Robertson–Walker models (often FLRW models) with time varying G and Λ in the general theory of relativity. In this communication the Einstein field equations have been solved by considering the deceleration parameter q(t) as a varying function of time t and the Hubble parameter H defined as q = - l (t - t 0) + β - 1 and q = - 1 + 2 α (H - 1) H , where l , t 0 , β , α are non-negative constants. We have analyzed the values of different constants that will generate a transition for the universe from an early decelerating phase to a recent acceleration phase. The physical and graphic behaviour have also been planned to study in this communication.
- Subjects
GRAVITATIONAL interactions; GENERAL relativity (Physics); EINSTEIN field equations; HUBBLE constant; UNIVERSE
- Publication
General Relativity & Gravitation, 2024, Vol 56, Issue 2, p1
- ISSN
0001-7701
- Publication type
Article
- DOI
10.1007/s10714-024-03211-1