Hostname: page-component-7bb8b95d7b-w7rtg Total loading time: 0 Render date: 2024-09-25T17:57:35.607Z Has data issue: false hasContentIssue false

A family of inequalities for convex sets

Published online by Cambridge University Press:  17 April 2009

P.R. Scott
Affiliation:
Department of Pure Mathematics, University of Adelaide, Adelaide, South Australia.
Rights & Permissions [Opens in a new window]

Abstract

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.

Let K be a bounded, closed convex set in the euclidean plane. We denote the diameter, width, perimeter, area, inradius, and circumradius of K by d, w, p, A, r, and R respectively. We establish a number of best possible upper bounds for (w−2r)d, (w−2r)R,(w−2r)p, (w−2r)A in terms of w and r. Examples are:

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1979

References

[1]Blaschke, Wilhelm, Kreis und Kugel, 2te Aufl. (Walter de Gruyter, Berlin, 1956).CrossRefGoogle Scholar
[2]Bottema, O., Djordjević, R.Ž., Janić, R.R., Mitrinović, D.S., Vasić, P.M., Geometric inequalities (Wolters-Noordhoff, Groningen, 1969).Google Scholar
[3]Sholander, Marlow, “On certain minimiim problems in the theory of convex curves”, Trans. Amer. Math. Soc. 73 (1952), 139173.Google Scholar
[4]Scott, P.R., “Two inequalities for convex sets in the plane”, Bull. Austral. Math. Soc. 19 (1978), 131133 (1979).CrossRefGoogle Scholar