|
This article is cited in 4 scientific papers (total in 4 papers)
Research Papers
Spatial graphs, tangles and plane trees
V. M. Nezhinskijab a St. Petersburg State University, Mathematics and Mechanics Faculty
b Herzen State Pedagogical University of Russia, St. Petersburg
Abstract:
All (finite connected) spatial graphs are supplied with an additional structure – the replenished skeleton and its disk framing, – in such a way that the problem of isotopic classification of spatial graphs endowed with this structure admits reduction to two problems: the (classical) problem of isotopic classification of tangles and the (close to classical) problem of isotopic classification of plane trees equipped with an additional structure, specifically, a set of hanging vertices and a fixed vertex (the root of the tree) in this set.
Keywords:
chord diagram, tangle, plane tree, spacial graph, spacial tortoise, smooth isotopy.
Received: 21.11.2016
Citation:
V. M. Nezhinskij, “Spatial graphs, tangles and plane trees”, Algebra i Analiz, 31:6 (2019), 197–207; St. Petersburg Math. J., 31:6 (2020), 1055–1063
Linking options:
https://www.mathnet.ru/eng/aa1678 https://www.mathnet.ru/eng/aa/v31/i6/p197
|
|