Conserved Quantities in $f(R)$ Gravity via Noether Symmetry
  This paper is devoted to investigate $f(R)$ gravity using Noether symmetry approach. For this purpose, we consider Friedmann Robertson-Walker (FRW) universe and spherically symmetric spacetimes. The Noether symmetry generators are evaluated for some specific choice of $f(R)$ models in the presence of gauge term. Further, we calculate the corresponding conserved quantities in each case. Moreover, the importance and stability criteria of these models are discussed. 
M. Farasat Shamir, Adil Jhangeer, Akhlaq Ahmad Bhatti
gr-qc