Exotic smooth structures on $CP^2#5{\bar CP^2}$
arXiv:math/0412216
Abstract
Motivated by a construction of Fintushel and Stern, we show that the topological 4--manifold $CP^2#5{\bar CP^2}$ supports infinitely many distinct smooth structures.
14 pages, 4 figures; details of computation of Seiberg-Witten invariants is added