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JOURNALS // Sibirskie Èlektronnye Matematicheskie Izvestiya [Siberian Electronic Mathematical Reports] // Archive

Sib. Èlektron. Mat. Izv., 2021 Volume 18, Issue 1, Pages 160–167 (Mi semr1354)

Real, complex and functional analysis

Some remarks on Möbius structures

V. V. Aseev

Sobolev Institute of Mathematics, 4, Koptyuga ave., Novosibirsk, 630090, Russia

Abstract: Some elementary relations between semimetrics in a Möbius structure allow us to give a correct definition of subspaces of a Möbius space and obtain the solutions in the problem of junction for Ptolemaic Möbius spaces as well as the problem of extending the Möbius structure from a subset to the whole set.

Keywords: Möbius structure, Möbius space, ptolemaic semimetric, ptolemaic Möbius structure, Möbius equivalence of semimetrics.

UDC: 517.54

MSC: 30C65

Received February 3, 2020, published March 5, 2021

Language: English

DOI: 10.33048/semi.2021.18.013



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