Exact solutions in f(R) theory of gravity
  We find a new method for looking for the static and spherically symmetric solutions in $F(R)$ theory of gravity. With this method, a number of new solutions in terms of the analytic functions are obtained. We hope this investigation may be of some help in the searching for some other solutions in $F(R)$ theory of gravity. 
Changjun Gao and You-Gen Shen
gr-qc