Non-hyperbolic automatic groups and groups acting on CAT(0) cube complexes
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Preprint of an article published in [Int. J. Algebra Comput. Vol.24, No.6(2014), pp.795-813 ] [http://dx.doi.org/10.1142/S0218196714500349] 〓 [copyright World Scientific Publishing Company] [http://www.worldscientific.com/worldscinet/ijac] Electronic version of an article published as [Int. J. Algebra Comput. Vol.24, No.6(2014), pp.795-813] [http://dx.doi.org/10.1142/S0218196714500349] 〓 [copyright World Scientific Publishing Company] [http://www.worldscientific.com/worldscinet/ijac]
We discuss a problem posed by Gersten: Is every automatic group which does not contain Ζ × Ζ subgroup, hyperbolic? To study this question, we define the notion of "n-track of length n", which is a structure like Ζ × Ζ, and prove its existence in the non-hyperbolic automatic groups with mild conditions. As an application, we show that if a group acts freely, cellularly, properly discontinuously and cocompactly on a CAT(0) cube complex and its quotient is "weakly special", then the above question is answered affirmatively.
収録刊行物
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- International Journal of Algebra and Computation
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International Journal of Algebra and Computation 24 (6), 795-813, 2014-09-03
World Scientific Publishing
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詳細情報 詳細情報について
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- CRID
- 1050845763322080256
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- NII論文ID
- 120006658111
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- NII書誌ID
- AA10875347
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- ISSN
- 02181967
- 17936500
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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