%0 Journal Article
%T On elements of order p^s in the plane Cremona group over a field of characteristic p
%A Igor V. Dolgachev
%J Mathematics
%D 2008
%I arXiv
%X We show that the plane Cremona group over a field of characteristic p > 0 does not contain elements of order of power of p larger than 2 and it does not contain elements of order p^2 unless p =2. Also we describe conjugacy classes of elements of order 4.
%U http://arxiv.org/abs/0811.1390v2