Cosmic Structure Formation in a Viable Power-Law f(R) Gravity Model: Growth Dynamics, Stability, and Observational Signatures

Murli Manohar Verma

We investigate the evolution of cosmic structures in the power-law modified gravity model $f(R)=R+R^{1+\hat{I}´}/R_c^{\hat{I}}´$, where the dimensionless parameter $\hat{I}´$ characterizes deviations…