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JOURNALS // Sibirskie Èlektronnye Matematicheskie Izvestiya [Siberian Electronic Mathematical Reports] // Archive
Sib. Èlektron. Mat. Izv., 2020 Volume 17, Pages 769–776 (Mi semr1249)
This article is cited in 3 papers

Geometry and topology

Isotopy invariants of spatial graphs

V. M. Nezhinskijab

a St.-Petersburg State University, 7-9, Universitetskaja nab., St.-Petersburg, 199034, Russia
b Herzen State Pedagogical University of Russia, 48, nab. r. Mojki, St.-Petersburg, 191186, Russia

Abstract: We reduce the problem of isotopy classification of spatial framed graphs equipped with an additional structure – a skeleton and a marked point, to the classical problem of isotopy classification of tangles.

Keywords: spatial graph, skeleton, tangle, isotopy.

UDC: 515.162

MSC: 57M15

Received May 7, 2020, published June 10, 2020

DOI: 10.33048/semi.2020.17.055



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