Twisting 4-manifolds along RP²
classification
🧮 math.GT
math.AG
keywords
alongtwistingobtainedsurfacecopydolgachevellipticexotic
read the original abstract
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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