Sylvester rank functions for amenable normal extensions
Sylvester rank functions for amenable normal extensions
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适合正常扩展的西尔维斯特等级函数
DOI:
10.1016/j.jfa.2020.108913
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发表时间:
2021
影响因子:
1.7
通讯作者:
Li, Hanfeng
中科院分区:
文献类型:
--
作者:
Jiang, Baojie;Li, Hanfeng
We introduce a notion of amenable normal extension S of a unital ring R with a finite approximation system F, encompassing the amenable algebras over a field of Gromov and Elek, the twisted crossed product by an amenable group, and the tensor product with a field extension. It is shown that every Sylvester matrix rank function rk of R preserved by S has a canonical extension to a Sylvester matrix rank function rk F for S. In the case of twisted crossed product by an amenable group, and the tensor product with a field extension, it is also shown that rk F depends on rk continuously. When an amenable group has a twisted action on a unital C⁎-algebra preserving a tracial state, we also show that two natural Sylvester matrix rank functions on the algebraic twisted crossed product constructed out of the tracial state coincide.
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DOI:
--
发表时间:
2019
期刊:
Groups St Andrews 2017 in Birmingham
影响因子:
--
作者:
A. Jaikin‐Zapirain
通讯作者:
A. Jaikin‐Zapirain
DOI:
--
发表时间:
2017
期刊:
Canadian Journal of Mathematics - Journal Canadien de Mathematiques
影响因子:
--
作者:
P. Ara;J. Claramunt
通讯作者:
J. Claramunt
DOI:
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1990
期刊:
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--
作者:
J. Packer;I. Raeburn
通讯作者:
I. Raeburn
DOI:
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发表时间:
2001
期刊:
影响因子:
--
作者:
G. Elek
通讯作者:
G. Elek
影响因子:
1.4
作者:
G. Elek
通讯作者:
G. Elek