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Title: On a theorem of Artin, II
Authors: Franco, Nuno
Paris, Luis
Editors: Wilson, John S.
Keywords: Artin Groups
Issue Date: 2006
Publisher: Journal of Group theory
Abstract: This paper is a sequel of [8]. Let A be an Artin group, let W be its associated Coxeter group, and let CA be its associated coloured Artin group, that is, the kernel of the standard epimorphism xi: A -> W. We determine the homomorphisms A -> W that verify Im' ¢ Z(W) = W, for A irreducible and of spherical type, and we prove that CA is a characteristic subgroup of A, if A is of spherical type but not necessarily irreducible.
Type: article
Appears in Collections:MAT - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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