DIFFERENTIAL INVARIANCE OF MULTIPLICITY

YIH-NAN GAU, Purdue University

Abstract

For an analytic variety V and a point P on V, the multiplicity of V at P is a natural number which measures the nonsmoothness of V at P. We prove that the multiplicity is invariant under embedded diffeomorphism. This generalizes a result of Ephraim. We also discuss the notion of differential equivalence for analytic germs.

Degree

Ph.D.

Subject Area

Mathematics

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