Conjugacy classes of affine automorphisms of K^n and linear   automorphisms of P^n in the Cremona groups
  We describe the conjugacy classes of affine automorphisms in the group $Aut(n,\K)$ (respectively $Bir(\K^n)$) of automorphisms (respectively of birational maps) of $\K^n$. From this we deduce also the classification of conjugacy classes of automorphisms of $\Pn$ in the Cremona group $Bir(\K^n)$. 
J\'er\'emy Blanc