Knotting of Algebraic Curves in CP2

Sergey Finashin

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Knotting of Algebraic Curves in CP2

Sergey Finashin

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Abstract

I construct "fake algebraic curves" in $Cp^2$. More precisely, for any k>2, I construct infinitely many pairwise smoothly non-isotopic (and moreover not ambient diffeomorphic) smooth surfaces $F\subset Cp^2$ homeomorphic to a non-singular algebraic curve of degree 2k, realizing the same homology class as such a curve and having abelian fundamental group of the complement $Cp^2-F$. This gives an answer to Problem 4.110 of Kirby's list.

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Sergey Finashin. 1999-07-27. Knotting of Algebraic Curves in CP2. https://arxiv.org/abs/math/9907108

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