43 citations · 257 across the 27 of their papers we have counts for
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Time Evolution of Density Parameters for Matter and Dark Energy and their Interaction Term in Brans-Dicke Gravity
Sudipto Roy, Dipika Nandi, Sumana Ghosh +1
In the framework of Brans-Dicke (BD) theory, the first part of the present study determines the time dependence of BD parameter, energy density and equation of state (EoS) paramete…
A Study of the Time Evolution of Brans-Dicke Parameter and its Role in Cosmic Expansion
Sudipto Roy, Soumyadip Chowdhury
The dependence of Brans-Dicke (BD) parameter upon the scalar field, for different cosmological era of the expanding universe, has been explored. The time dependence of the scalar f…
Time Evolution of the Matter Content of the Expanding Universe in the Framework of Brans-Dicke Gravity
Sudipto Roy
A cosmological model has been constructed in the framework of Brans-Dicke (BD) gravity, based on an inter-conversion between matter and dark energy, for a spatially flat universe i…
A Study on the Expanding Universe Based on a Model of the Time Variation of its Matter Content in the Framework of Brans-Dicke Theory
Sudipto Roy, Dibyajyoti Laha, Argho Aranya Sangma +1
A theoretical model of cosmic expansion has been formulated on an assumption of inter-conversion of matter and dark energy, in the framework of Brans-Dicke theory. An empirical sca…
A Study of Cosmic Expansion Generated by Non-conservation of Matter in the Framework of Brans-Dicke Theory
Sudipto Roy, Mohsin Islam
The present study, on the expansion of universe, is based on an assumption regarding the possibility of inter-conversion between matter and dark energy, through some interaction of…
A Study of Transition of the Expansion of the Universe from a Phase of Deceleration to Acceleration through a Conversion of Matter into Dark Energy in the Framework of Brans-Dicke Theory
Sudipto Roy
The present study is based on a generalized form of Brans-Dicke (BD) theory where, the dimensionless BD parameter is regarded as a function of the scalar field, which is reciprocal…