activity
20072026
most citedCosmological solutions and growth index of matter perturbations in gravity

311 citations · 996 across the 33 of their papers we have counts for

collaborators

32 papers

gr-qc2026

Exact Integrable CDM-Mimicking Cosmology: Background, Stability, and Perturbations in the First Connection Branch

Wompherdeiki Khyllep, Daniele Gregoris, Saikat Chakraborty +1

We re-examine the problem of mimicking the standard cosmological model, characterized by (where is the cosmographic jerk parameter), within the context of the first conne…

gr-qc2025★ 2 cited

A Unified Dynamical Systems Framework for Cosmology in Gravity: Generic Features Beyond the Coincident Gauge

Jibitesh Dutta, Wompherdeiki Khyllep, Saikat Chakraborty +2

We present a unified dynamical systems framework for spatially flat FLRW cosmology in gravity, covering all three connection branches via a single set of Hubble-normalised v…

gr-qc2025

Reproducing CDM-like Solutions in Gravity: A Comprehensive Study Across All Connection Branches

Saikat Chakraborty, Jibitesh Dutta, Daniele Gregoris +2

Given the remarkable success of the CDM model in fitting various cosmological observations, a pertinent question in assessing the phenomenological viability of modified gravity…

math.SP2024

Eccentricity Spectra and Integral Eigenvalues of Zero Divisor Graphs

Gunajyoti Saharia, Sanghita Dutta, Jibitesh Dutta

In this work, we study the eccentricity spectra of zero divisor graphs (ZDGs) associated with the ring While previous studies have examined the Laplacian and distan…

gr-qc2023★ 29 cited

Modelling the Accelerating Universe with Gravity: Observational Consistency

S. A. Narawade, S. H. Shekh, B. Mishra +2

In this paper, we present a cosmological model within the framework of symmetric teleparallel gravity, focusing on gravity, where represents the non-metricity scalar. Ut…

gr-qc2022★ 6 cited

Global phase space analysis for a class of single scalar field bouncing solutions in general relativity

A. S. Agrawal, Saikat Chakraborty, B. Mishra +2

We carry out a compact phase space analysis of a non-canonical scalar field theory whose Lagrangian is of the form within general relativity. In particular, we focus on…