Cosmological Constraints on Non-flat Exponential $f(R)$ Gravity

Chao-Qiang Geng, Yan-Ting Hsu, Jhih-Rong Lu

We explore the viable $f(R)$ gravity models in FLRW backgrounds with a free spatial curvature parameter ${\Omega }_K$. In our numerical calculation, we concentrate on the exponential $f(…