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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)


Monomial equimultiple curves in positive characteristic

Author: R. Narasimhan
Journal: Proc. Amer. Math. Soc. 89 (1983), 402-406
MSC: Primary 14B05; Secondary 13H05, 13H15
MathSciNet review: 715853
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Abstract: It is known that the local equimultiple locus of a hypersurface in characteristic zero is contained in a regular hypersurface. Here we give an example of a monomial curve on a threefold in positive characteristic $ p{\text{ > }}2$ which is equimultiple but not hyperplanar. As a corollary we have that any monomial curve which lies on a certain type of hypersurface (whose local equation is of a special form in its natural $ p$-basis expression) is automatically equimultiple for the hypersurface.

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PII: S 0002-9939(1983)0715853-7
Keywords: Equimultiple curve, ideal-theoretic complete intersection, symmetric semigroup
Article copyright: © Copyright 1983 American Mathematical Society