Grothendieck-Lefschetz Theorem with Base Locus

preprint2016arXivOpen access

Abstract

We compute the divisor class group of the general hypersurface Y of a complex projective normal variety X of dimension at least four containing a fixed base locus Z. We deduce that completions of normal local complete intersection domains of finite type over the complex numbers of dimension ≥4\ge 4 are completions of UFDs of finite type over the complex numbers.

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