activity
20042026
most citedModified Theory of Gravity and Clustering of Multi-Component System of Galaxies

18 citations · 31 across the 9 of their papers we have counts for

collaborators

9 papers

gr-qc2026

A Conformal Boundary Ansatz for Warm Inflation Initialization: A Toy Model

Somnath Das, Rizwan ul Haq Ansari

We present a theoretical framework demonstrating a deterministic initialization mechanism for Warm Inflation via classical conformal boundary conditions. A persistent challenge in…

gr-qc2019★ 18 cited

Modified Theory of Gravity and Clustering of Multi-Component System of Galaxies

Mir Hameeda, Behnam Pourhassan, Mir Faizal +3

In this paper, we analyze the clustering of galaxies using a modified theory of gravity, in which the field content of general relativity has been be increased. This increasing in…

gr-qc2011

Evolution of the density parameter in the anisotropic DGP cosmology

Rizwan Ul Haq Ansari, P. K. Suresh

Evolution of the density parameter in the anisotropic DGP braneworld model is studied. The role of shear and cross-over scale in the evolution of is examined for both the bra…

astro-ph.CO2011★ 3 cited

Perturbations in dark energy models with evolving speed of sound

Rizwan Ul Haq Ansari, Sanil Unnikrishnan

The behavior of perturbation in scalar field dark energy and its consequent effect on the cold dark matter (CDM) power spectrum is well understood to be governed by the equation of…

gr-qc2008★ 2 cited

Dvali-Gabadadze-Porrati Cosmology in Bianchi I brane

Rizwan Ul Haq Ansari, P K Suresh

The dynamics of Dvali-Gabadadze-Porrati Cosmology (DGP) braneworld with an anisotropic brane is studied. The Friedmann equations and their solutions are obtained for two branches o…

gr-qc2007★ 6 cited

Bulk scalar field in DGP braneworld cosmology

Rizwan ul Haq Ansari, P. K. Suresh

We investigated the effects of bulk scalar field in the braneworld cosmological scenario. The Friedmann equations and acceleration condition in presence of the bulk scalar field fo…