Constraining $f(R)$ gravity and evolving dark energy via large-scale structure and phase-space trajectories

Tshepo Mathibela, Alvaro de la Cruz-Dombriz, Savvas Nesseris

We present a joint observational analysis confronting viable $f(R)$ modified gravity theories, specifically the Hu \& Sawicki and Starobinsky models, with background and large-scal…