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 $f(R)=R+R^{1+\delta }/R_c^{\delta }$, where the dimensionless parameter $\delta$ characterizes deviations fro…