Exploration of Parameters in f(R,T) Gravity and Comparison with Type Ia Supernovae Data

Vincent R. Siggia, Eric D. Carlson, P. Lee Pryor

The expansion of the Universe in $f(R,T)$ gravity is studied. We consider functions of the form $f(R,T)=R+\hat{I}»T^{\hat{I}}\mu$ where $\hat{I}\mu <1$. We find that for all models with $\hat{I}\mu <0$, the Univers…