activity
20232026
most citedCosmological dynamics and observational constraints on a viable non-metric gravity model

13 citations · 25 across the 7 of their papers we have counts for

collaborators

7 papers

gr-qc2026

Apparent horizon thermodynamics in an exponential gravity model

A. Oliveros, Ivan R. Vasquez

We investigate the thermodynamics of the apparent horizon in an exponential gravity model characterized by the two parameters and , within a spatially flat Friedmann-…

gr-qc2025★ 2 cited

Phase space analysis of an exponential model in gravity including linear dark-sector interactions

Ivan R. Vasquez, A. Oliveros

We present a cosmological analysis of an exponential gravity model, within the dynamical systems formalism. Following the method introduced by Böhmer \textit{et al} [Univers…

gr-qc2025★ 8 cited

Analysis of the cosmological evolution parameters, energy conditions, and linear matter perturbations of an exponential-type model in gravity

Ivan R. Vasquez, A. Oliveros

We study cosmological evolution in a flat FLRW spacetime in the context of modified STEGR gravity or , using an exponential two-parameter model which represents a smooth pert…

astro-ph.CO2024

Observational constraints on a modified-gravity model with an exponential function of the curvature using the expansion history, the RSD, and the Pantheon+SH0ES data

Mario A. Acero, A. Oliveros

Considering a well-motivated modified-gravity model, in which an exponential function of the curvature is included, in this paper we implement a statistical data analysis to…

astro-ph.CO2023★ 13 cited

Cosmological dynamics and observational constraints on a viable non-metric gravity model

A. Oliveros, Mario A. Acero

Inspired by an exponential gravity model studied in the literature, in this work we introduce a new and viable gravity model, which can be represented as a perturbati…

astro-ph.CO2023★ 1 cited

A viable gravity model without oscillations in the effective dark energy

A. Oliveros

In this study, we propose a reparameterization of a specific viable gravity model to represent it as a perturbation of the CDM model. The gravity model under consi…

gr-qc2023★ 1 cited

Late-time cosmology in a model of modified gravity with an exponential function of the curvature

A. Oliveros, Mario A. Acero

In this work, we analyse the late-time evolution of the universe for a particular gravity model built from an exponential function of the scalar curvature. Following the lit…