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Tight stable surfaces, II

Published online by Cambridge University Press:  14 November 2011

Leslie Coghlan
Affiliation:
Department of Mathematics, University of Alabama in Birmingham, Birmingham, AL 35294, U.S.A.

Synopsis

Kuiper has proved that there is no tight topological immersion of RP2 into E3. Thus any continuous tight map RP2E3 has to have singular points. In this note we consider tight C-stable maps of RP2 and the torus into E3; i.e. maps with the simplest possible singularities (Whitney pinchpoints) and transversal crossings. We classify the forms that the outer part of such maps can take; we prove also some facts about the inner part. The result about the outer part of C-stable tight maps RP2E3 establishes the first half of Banchoff's conjectured classification of such mappings.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1989

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