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JOURNALS // Sibirskii Matematicheskii Zhurnal // Archive

Sibirsk. Mat. Zh., 2022 Volume 63, Number 5, Pages 975–993 (Mi smj7707)

Bounded turning in Möbius structures

V. V. Aseev

Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk

Abstract: We study a Möbius-invariant generalization, called BTR, of the classical property of bounded turning in a metric space which was introduced by Tukia and Väisälä in 1980 and suitable for use in Ptolemaic Möbius structures in the sense of Buyalo. In particular, we prove that every continuum with the BTR property, lying on the boundary of a domain in the complex plane, is locally connected.

Keywords: Möbius structure, Ptolemaic Möbius space, continuum with bounded turning, quasimöbius arc, quasimöbiusly connected space, local connectedness.

UDC: 517.54

MSC: 35R30

Received: 23.11.2021
Revised: 25.05.2022
Accepted: 15.06.2022

DOI: 10.33048/smzh.2022.63.502


 English version:
Siberian Mathematical Journal, 2022, 63:5, 819–833


© Steklov Math. Inst. of RAS, 2026