Twisting 4-manifolds along RP^2

Details Twisting 4-manifolds along RP^2 Twisting 4-manifolds along RP^2

2009-12-23

arxiv.org/abs/0912.4727v3

Mathematics

Geometric Topology

5 papes, 5 figures. Appeared in Proceedings of GGT.

Scientific paper

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.

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