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Colour Switching and Homeomorphism of Manifolds

Published online by Cambridge University Press:  20 November 2018

Massimo Ferri*
Affiliation:
Universita di Bologna, Bologna, Italia
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Throughout this paper, we work in the PL and pseudosimplicial categories, for which we refer to [17] and [10] respectively. For the graph theory involved see [9].

An h-coloured graph (Γ, γ) is a multigraph Γ = (V(Γ), E(Γ)) regular of degree h, endowed with an edge-coloration γ by h colours. If is the colour set, for each we set

For each set . For nZ, n ≧ 1, set

Δn will be mostly used to denote the colour set for an (n + 1)-coloured graph.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1987

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