A. Rana

activity

20152025

most citedConstraining cosmic curvature by using age of galaxies and gravitational lenses

72 citations · 206 across the 10 of their papers we have counts for

collaborators

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2 papers · 1 filter

astro-ph.CO2025

Spectral Chebyshev Approximation of Cosmic Expansion in $f (R)$ Gravity

Akshay Rana

We present a numerical framework to study the cosmological background evolution in $f (R)$ gravity by employing a \textit{spectral Chebyshev collocation approach}. Unlike standard i…

astro-ph.CO2025★ 2 cited

Testing the Constancy of Type Ia Supernova Luminosities with Gaussian Process

Akshay Rana

Type Ia supernovae (SNe~Ia) are central to studies of cosmic expansion, under the assumption that their absolute magnitude $M_{B}$ does not evolve with redshift. Even small drifts in…

Spectral Chebyshev Approximation of Cosmic Expansion in f(R) Gravity

Testing the Constancy of Type Ia Supernova Luminosities with Gaussian Process

Spectral Chebyshev Approximation of Cosmic Expansion in $f (R)$ Gravity