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On the flat ridges of submanifolds of codimension 2 in Rn

Published online by Cambridge University Press:  12 July 2007

M. C. Romero-Fuster
Affiliation:
Departamento de Geometria i Topologia, Universitat de Valncia, Spain ([email protected])
E. Sanabria-Codesal
Affiliation:
Departamento de Matemtica Aplicada, Universidad Politcnica de Valncia, Spain ([email protected])

Abstract

We introduce the concept of flat ridges for submanifolds of codimension 2 from the viewpoint of their contact with hyperplanes. We characterize them geometrically, studying some of their properties. In particular, we see that the highest-order flat ridges coincide with the flattenings of the asymptotic lines and from this we obtain some lower bounds for their numbers under appropriate conditions.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 2002

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