On free subgroup in Artin group with tree-structure
Čebyševskij sbornik, Tome 15 (2014) no. 1, pp. 32-42

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Let $G$ be finitely generated Artin group with tree-structure defined by the presentation $G = $
Keywords: Artin group with tree-structure, the subgroup, amalgamated product.
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     author = {V. N. Bezverkhniy and I. V. Dobrynina},
     title = {On free subgroup in {Artin} group with tree-structure},
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V. N. Bezverkhniy; I. V. Dobrynina. On free subgroup in Artin group with tree-structure. Čebyševskij sbornik, Tome 15 (2014) no. 1, pp. 32-42. http://geodesic.mathdoc.fr/item/CHEB_2014_15_1_a3/