Let G=⟨ a1,&ldots; , an | aiajai&ldots; = a_ja_ia_j,&ldots; ,i>j⟩ be an Artin group and let mij =mji be the length of each of the sides of the defining relation involving aiand aj. We show if all m_ij ⩾ 7 then G is relatively hyperbolic in the sense of Farb with respect to the collection of its two-generator subgroups 〈ai, aj〉for which m_ij >&infty;.
机构:
Univ Rome La Sapienza, Dipartimento Matemat G Castelnuovo, I-00185 Rome, ItalyUniv Rome La Sapienza, Dipartimento Matemat G Castelnuovo, I-00185 Rome, Italy
De Concini, C
Salvetti, M
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机构:Univ Rome La Sapienza, Dipartimento Matemat G Castelnuovo, I-00185 Rome, Italy
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Shijiazhuang Railway Inst, Inst Math & Phys, Shijiazhuang 050043, Peoples R ChinaShijiazhuang Railway Inst, Inst Math & Phys, Shijiazhuang 050043, Peoples R China
Li, Jingyan
Wu, Jie
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Natl Univ Singapore, Dept Math, Singapore 117542, SingaporeShijiazhuang Railway Inst, Inst Math & Phys, Shijiazhuang 050043, Peoples R China