Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-23T02:12:43.699Z Has data issue: false hasContentIssue false

An isoperimetric inequality for the thread problem

Published online by Cambridge University Press:  17 April 2009

Frank Morgan
Affiliation:
Department of Mathematics, Williams College, Williamstown, MA 01267United States of America
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Given a fixed curve C0 in Rn of length L0 and a variable curve C of fixed length LL0, the thread problem seeks a least-area surface bounded by C0 + C. We show that an extreme case is a circular arc and its chord. We provide some counterexamples and generalisations to higher dimensions.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1997

References

[1]Allard, W.K., ‘On the first variation of a varifold’, Ann. of Math. 95(1972), 417491.CrossRefGoogle Scholar
[2]Almgren, F.J., ‘Optimal isoperimetric inequalities’, Indiana Univ. Math. J. 35 (1986), 451547.CrossRefGoogle Scholar
[3]Chern, S.S., ‘Curves and surfaces in Euclidean space’, in Studies in Global Geometry and Analysis, (Chern, S.S., Editor), Studies in Mathematics 4 (Math. Assn. of Amer., 1967), pp. 1656.Google Scholar
[4]Dierkes, U., Hildebrandt, S., Küster, A. and Wohlrab, O., Minimal surfaces II: Boundary regularity (Springer-Verlag, Berlin, Heidelberg, New York, 1992).CrossRefGoogle Scholar
[5]Ecker, K., ‘Area-minimizing integral currents with movable boundary parts of prescribed mass’, Ann. Inst. H. Poincaré 6 (1989), 261293.CrossRefGoogle Scholar
[6]Morgan, F., Geometric meaure theory: a beginner's guide, (second edition) (Academic Press, New York, 1995).Google Scholar
[7]Nitsche, J.C.C., Vorlesungen über Minimalflächen (Springer-Verlag, Berlin, Heidelberg, New York, 1975).CrossRefGoogle Scholar