%0 Journal Article
%T Twisting 4-manifolds along RP^2
%A Selman Akbulut
%J Mathematics
%D 2009
%I arXiv
%X We prove that the Dolgachev surface E(1)_{2,3} (which is an exotic copy of the elliptic surface E(1)=CP^2 # 9(-CP^2)) can be obtained from E(1) by twisting along a simple "plug", in particular it can be obtained from E(1) by twisting along an RP^2.
%U http://arxiv.org/abs/0912.4727v3