[Nutch-general] page ranking

[Chetan Sahasrabudhe]

Hello,
 
           Can anyone provide pointer to find nutch page ranking algo or 
equation.
I am looking at something like,
 
 PR(A) = (1-d) + d (PR(T1)/C(T1) + ... + PR(Tn)/C(Tn)) 

Regards 
Chetan