Sofic mean length
Sofic mean length
复制标题
索菲克平均长度
DOI:
10.1016/j.aim.2019.01.042
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发表时间:
2015-10
影响因子:
1.7
通讯作者:
Liang Bingbing
中科院分区:
文献类型:
--
作者:
Li Hanfeng;Liang Bingbing
Given a length function L on the R-modules of a unital ring R, for each sofic group Γ we define a mean length for every locally L-finite RΓ-module relative to a bigger RΓ-module. We establish an addition formula for the mean length. We give two applications. The first one shows that for any unital left Noetherian ring R, RΓ is stably direct finite. The second one shows that for any Z Γ-module M, the mean topological dimension of the induced Γ-action on the Pontryagin dual of M coincides with the von Neumann–Lück rank of M.
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DOI:
10.1090/s0002-9939-03-06908-9
发表时间:
2003-02
期刊:
--
影响因子:
--
作者:
G. Elek
通讯作者:
G. Elek
影响因子:
2.6
作者:
M. Gromov
通讯作者:
M. Gromov
DOI:
10.1515/jgt.2006.011
发表时间:
2003-05
期刊:
--
影响因子:
--
作者:
G. Elek;E. Szabó
通讯作者:
G. Elek;E. Szabó
DOI:
10.1023/a:1009841100168
发表时间:
1999
期刊:
Mathematical Physics, Analysis and Geometry
影响因子:
--
作者:
M. Gromov
通讯作者:
M. Gromov
DOI:
10.1007/978-94-009-3835-9
发表时间:
1987-04
期刊:
--
影响因子:
--
作者:
C. Nastasescu;F. Oystaeyen
通讯作者:
C. Nastasescu;F. Oystaeyen