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A Bound on the Number of Endpoints of the Cut Locus

Published online by Cambridge University Press:  01 February 2010

Robert Sinclair
Affiliation:
Department of Mathematical Sciences, Faculty of Science, University of the Ryukyus, Nishihara City, Okinawa 903–0213, Japan, sinclair@math.u-ryukyu.ac.jp, http://homepage.mac.com/r_m_sinclair/
Minoru Tanaka
Affiliation:
Department of Mathematics, Tokai University, Hiratsuka City, Kanagawa 259–1292, Japan, m-tanaka@sm.u-tokai.ac.jp

Abstract

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We provide strong experimental evidence for an upper bound on the number of endpoints of the cut locus from a point on a 2-surface of revolution. This bound is equal to the minimal number of intervals of monotone non-increasing or non-decreasing Gaussian curvature along one meridian from one pole to the other.

Type
Research Article
Copyright
Copyright © London Mathematical Society 2006

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Supplementary material: File

Sinclair and Tanaka Appendix

Appendix

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