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Hyperplane sections of weakly normal varieties in positive characteristic

Authors: Caterina Cumino, Silvio Greco and Mirella Manaresi
Journal: Proc. Amer. Math. Soc. 106 (1989), 37-42
MSC: Primary 14E05; Secondary 14E22
MathSciNet review: 953739
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Abstract: It is known that the general hyperplane sections of a weakly normal projective algebraic variety are weakly normal if the ground field has characteristic zero. This is shown to be false in positive characteristic; counterexamples can be obtained by intersecting "bad" weakly normal varieties with suitable linear spaces.

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Keywords: Weakly normal and/or WN1 algebraic varieties, general hyperplane section
Article copyright: © Copyright 1989 American Mathematical Society

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