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On equichordal curves

Published online by Cambridge University Press:  14 November 2011

Waldemar Cieślak
Affiliation:
Institute of Mathematics, Maria Curie Skłodowska University, Lublin, Poland

Synopsis

In this paper we consider equichordal curves in ℝn. We extend the notion of chordal area to all equichordal curves and introduce a notion of *-chordal area. We establish results connected with the length, *-chordal area and extended chordal area. Moreover, we give a Crofton-type integral formula for plane equichordal curves and derive an isoperimetric inequality for *-chordal area. The paper is based on the results of F. J. Craveiro de Carvalho and S. A. Robertson [2].

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1991

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References

1Cieślak, W.. Crofton-type integral formulas for star domain. Geom. Dedicata 28 (1988), 251258.CrossRefGoogle Scholar
2Craveiro de Carvalho, F. J. and Robertson, S. A.. Equichordal curves. Proc. Roy. Soc. EdinburghSect. A 110 (1988), 8591.CrossRefGoogle Scholar
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4Tennison, R. L.. Smooth curves of constant width. Math. Gaz. 60, no. 414 (1976), 207272.CrossRefGoogle Scholar