Splitting formulas for certain Waldhausen Nil‐groups
Splitting formulas for certain Waldhausen Nil‐groups
复制标题
某些 Waldhausen Nil 群的分裂公式
DOI:
10.1112/jlms/jdn075
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发表时间:
2007
期刊:
影响因子:
--
通讯作者:
I. J. Ortiz
中科院分区:
文献类型:
--
作者:
J.;I. J. Ortiz
We provide splitting formulas for certain Waldhausen Nil‐groups. We focus on Waldhausen Nil‐groups associated to acylindrical amalgamations Γ = G1 * H G2 of the groups G1 and G2 over a common subgroup H. For these amalgamations, we explain how, provided that G1, G2 and Γ satisfy the Farrell–Jones isomorphism conjecture, the Waldhausen Nil‐groups Nil*W(RH; R[G1 − H], R[G2 − H]) can be expressed as a direct sum of Nil‐groups associated to a specific collection of virtually cyclic subgroups of Γ. A special case covered by our theorem is the case of arbitrary amalgamations over a finite group H.