3 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
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
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…