Roberto De Arcia

collaborators

2 papers

gr-qc2025

Asymptotic dynamical analysis of $f (R, T^{I ¨} ) = R + I^\pm T^{I ¨} + I^^{2} (T^{I ¨} )^{2} /2$ cosmology

Joaquin Estevez-Delgado, Roberto De Arcia, Gabino Estevez-Delgado +1

In this work we investigate the asymptotic cosmological dynamics of a modified gravity model based on the $f (R, T^{I ¨} )$ theory, where $R$ denotes the Ricci scalar and $T^{I ¨} $ is the t…

gr-qc2025

Revisiting purely kinetic k-essence

Israel Quiros, Tame Gonzalez, Ulises Nucamendi +2

In this paper, we perform a dynamical systems study of the purely kinetic k-essence. Although these models have been studied in the past, a full study of the dynamics in the phase…

Asymptotic dynamical analysis of f(R,TI¨)=R+I^±TI¨+I^2(TI¨)2/2 cosmology

Revisiting purely kinetic k-essence

Asymptotic dynamical analysis of $f (R, T^{I ¨} ) = R + I^\pm T^{I ¨} + I^^{2} (T^{I ¨} )^{2} /2$ cosmology