On a characteristic property of the sphere

We are studying a characteristic property of the disc in the Euclidean plane ℝ^2 with the help of an intersection property of the semicircles with end-points in the boundary of the disc and a characteristic property of the ball in the Euclidean space ℝ^3.

Bibliographic Details
Main Author: Horst Kramer
Format: Article
Language:English
Published: Accademia Peloritana dei Pericolanti 2018-11-01
Series:Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali
Online Access: http://dx.doi.org/10.1478/AAPP.96S2A8