Cubulating small cancellation groups

Cubulating small cancellation groups
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累积小型取消组

DOI:
10.1007/s00039-004-0454-y
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发表时间:
2004
期刊:
Geometric & Functional Analysis GAFA
影响因子:
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通讯作者:
D. Wise
D. Wise
中科院分区:
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文献类型:
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作者:
D. Wise

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本文研究了B(6)和B(4)-T(4)小消去群。 这些类包括通常的C '(1/6)和C'(1/4)-T(4)度量小 取消组。我们证明了每一个满足B(4)-T(4)的解 或词-双曲B(6)群适当地不连续和余紧地作用 在CAT(0)立方体复合体上。我们证明了, B(6)和B(4)-T(4)群具有余维数为1的子群,因此不 有性质(T)。我们证明了一个由B表示的B(6)群是字双曲的 当且仅当它不包含 $$ \mathbb{Z} \times \mathbb{Z} $$子群。
AbstractWe study the B(6) and B(4)-T(4) small cancellation groups. These classes include the usual C’(1/6) and C’(1/4)-T(4) metric small cancellation groups. We show that every finitely presented B(4)-T(4) or word-hyperbolic B(6) group acts properly discontinuously and cocompactly on a CAT(0) cube complex. We show that finitely generated infinite B(6) and B(4)-T(4) groups have codimension 1 subgroups and thus do not have property (T). We show that a finitely presented B(6) group is wordhyperbolic if and only if it contains no $$ \mathbb{Z} \times \mathbb{Z} $$ subgroup.