389 citations · 2.4k across the 40 of their papers we have counts for
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Causes of Irregular Energy Density in Gravity
Z. Yousaf, Kazuharu Bamba, M. Zaeem ul Haq Bhatti
We investigate irregularity factors for a self-gravitating spherical star evolving in the presence of imperfect fluid. We explore the gravitational field equations and the dynamica…
Thermodynamic properties of modified gravity theories
Kazuharu Bamba
We review thermodynamic properties of modified gravity theories such as gravity and gravity, where is the scalar curvature and is the torsion scalar in telepa…
The Influence of Modification of Gravity on the Dynamics of Radiating Spherical Fluids
Z. Yousaf, Kazuharu Bamba, M. Zaeem ul Haq Bhatti
We explore the evolutionary behaviors of compact objects in a modified gravitational theory with the help of structure scalars. Particularly, we consider the spherical geometry cou…
Inflationary universe in fluid description
Kazuharu Bamba
We investigate a fluid description of inflationary cosmology. It is shown that the three observables of the inflationary universe: the spectral index of the curvature perturbations…
Inflationary universe in a conformally-invariant two scalar-field theory with an term
Kazuharu Bamba
We investigate the inflationary universe in a theory where two scalar fields non-minimally coupling to the scalar curvature and an extra term exist and the conformal invarian…