Uniform Zariski's Theorem On Fundamental Groups

Details Uniform Zariski's Theorem On Fundamental Groups Uniform Zariski's Theorem On Fundamental Groups

1997-11-25

arxiv.org/abs/alg-geom/9711033v1

Mathematics

Algebraic Geometry

18 pages

Scientific paper

The Zariski theorem says that for every hypersurface in a complex projective (resp. affine) space of dimension at least 3 and for every generic plane in the projective (resp. affine) space the natural embedding generates an isomorphism of the fundamental groups of the complements to the hypersurface in the plane and in the space. If a family of hypersurfaces depends algebraically on parameters then it is not true in general that there exists a plane such that the natural embedding generates isomorphisms of the fundamental groups of the complements to each hypersurface from this family in the plane and in the space. But we show that in the affine case such plane exists after a polynomial coordinate substitution.

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