On self-circumferences in Minkowski planes

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On self-circumferences in Minkowski planes

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Title: On self-circumferences in Minkowski planes
Author: Ghandehari, Mostafa; Martini, Horst
Abstract: This paper contains results on self-circumferences of convex figures in the frameworks of norms and (more general) also of gauges. Let δ(n) denote the self-circumference of a regular polygon with n sides in a normed plane. We will show that δ(n) is monotonically increasing from 6 to 2π if n is twice an odd number, and monotonically decreasing from 8 to 2π if n is twice an even number. Calculations of self-circumferences for the case that n is odd as well as inequalities for the self-circumference of some irregular polygons are also given. In addition, properties of the mixed area of a plane convex body and its polar dual are used to discuss the self-circumference of convex curves.
URI: http://hdl.handle.net/10662/9841
Date: 2019


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