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JOURNALS // Sibirskii Matematicheskii Zhurnal // Archive

Sibirsk. Mat. Zh., 2024 Volume 65, Number 1, Pages 15–26 (Mi smj7836)

The injectivity radius and shortest arcs of the oblate ellipsoid of revolution

V. N. Berestovskiiab, A. Mustafab

a Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
b Novosibirsk State University

Abstract: We found the geodesics, shortest arcs, cut loci, and injectivity radius of any oblate ellipsoid of revolution in three-dimensional Euclidean space.

Keywords: Clairaut rule, cut locus, ellipsoid of revolution, geodesic, injectivity radius, shortest arc.

UDC: 513.81

MSC: 35R30

Received: 29.06.2023
Revised: 29.06.2023
Accepted: 25.09.2023

DOI: 10.33048/smzh.2024.65.102



© Steklov Math. Inst. of RAS, 2024