13 citations · 56 across the 15 of their papers we have counts for
5 papers · 1 filter
A General Relativistic Rotating Evolutionary Universe
Marcelo Samuel Berman
We show that when we work with coordinate cosmic time, which is not proper time, Robertson-Walker's metric, includes a possible rotational state of the Universe. An exact formula f…
Are Mass and Length Quantized?
Marcelo Samuel Berman
We suggest that there are time-varying quanta of mass (gomidia) and of length (somia), thus pointing to a quantization of geometry and gravitation. The present numerical value of t…
Shear and Vorticity in Inflationary Brans-Dicke Cosmology with Lambda-Term
Marcelo Samuel Berman
We find a solution for exponential inflation in Brans-Dicke cosmology endowed with a cosmological term, which includes time-varying shear and vorticity. We find that the scalar fie…
Simple Derivation of Schwarzschild, Lense-Thirring, Reissner-Nordstrom, Kerr and Kerr-Newman Metrics
Marcelo Samuel Berman
An effort has been made, in order to derive without "hard" mathematics, the forms of Schwarzschild, Lense-Thirring, Reissner-Nordstrom, Kerr and Kerr-Newman metrics.
Natural Entropy Production in an Inflationary Model for a Polarized Vacuum
Marcelo Samuel Berman, Murari M. Som
Though entropy production is forbidden in standard FRW Cosmology, Berman and Som presented a simple inflationary model where entropy production by bulk viscosity, during standard i…