33 citations · 149 across the 10 of their papers we have counts for
5 papers · 1 filter
Dynamical analysis of the covarying coupling constants in scalar-tensor gravity
Rodrigo R. Cuzinatto, Rajendra P. Gupta, Pedro J. Pompeia
A scalar-tensor theory of gravity is considered wherein the gravitational coupling and the speed of light are admitted as space-time functions and combine to form the defin…
Constraining variability of coupling constants with bright and extreme quasars
Rajendra P. Gupta
The 'extreme Population A (xA) quasars' approaching, sometimes exceeding the Eddington limit, are a type of quasars that could serve as a standard candle to measure distances too l…
Varying Coupling Constants and Their Interdependence
Rajendra P Gupta
Since Dirac predicted in 1937 possible variation of gravitational constant and other coupling constants from his large number hypothesis, efforts continue to determine such variati…
Effect of evolutionary physical constants on type-1a supernova luminosity
Rajendra P. Gupta
Type 1a supernovae, SNeIa, are used as standard candles in cosmology for determining the distances of the galaxies harboring them. We show that the luminosity of an SNIa depends on…
Varying physical constants and the lithium problem
Rajendra P. Gupta
We have used the recently published varying physical constants (VPC) approach to resolve the primordial lithium abundance problem. The value of the ratio of to hydrogen $7Li/…