We show that a triangle Artin group Art(MNP), where M <= N <= P, splits as an amalgamated product or an HNN extension of finite rank free groups, provided that either M > 2 or N > 3. We also prove that all even 3 -generator Artin groups are residually finite.
机构:
Univ Warwick, Math Inst, Coventry CV4 7AL, W Midlands, England
Univ Newcastle, Sch Math Stat & Phys, Newcastle NE1 7RU, EnglandUniv Warwick, Math Inst, Coventry CV4 7AL, W Midlands, England
Holt, Derek F.
Rees, Sarah
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机构:
Univ Warwick, Math Inst, Coventry CV4 7AL, W Midlands, England
Univ Newcastle, Sch Math Stat & Phys, Newcastle NE1 7RU, EnglandUniv Warwick, Math Inst, Coventry CV4 7AL, W Midlands, England