New examples of W⁎ and C⁎-superrigid groups
New examples of W⁎ and C⁎-superrigid groups
复制标题
W-和 C-超刚性群的新例子
DOI:
10.1016/j.aim.2022.108797
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发表时间:
2023
影响因子:
1.7
通讯作者:
Drimbe, Daniel
中科院分区:
文献类型:
--
作者:
Chifan, Ionuţ;Diaz-Arias, Alec;Drimbe, Daniel
A countable discrete group G is called W⁎-superrigid (resp. C⁎-superrigid) if it is completely recognizable from its von Neumann algebra L (G)(resp. reduced C⁎-algebra C r⁎(G)). Developing new technical aspects in Popa's deformation/rigidity theory we introduce several new classes of W⁎-superrigid groups which appear as direct products, semidirect products with non-amenable core and iterations of amalgamated free products and HNN-extensions. As a byproduct we obtain new rigidity results in C⁎-algebra theory including additional examples of C⁎-superrigid groups and explicit computations of symmetries of reduced group C⁎-algebras.
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影响因子:
1.7
作者:
Chifan, Ionuţ;Diaz-Arias, Alec;Drimbe, Daniel
通讯作者:
Drimbe, Daniel
影响因子:
1.4
作者:
Chifan, Ionut;Das, Sayan
通讯作者:
Das, Sayan
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
Mihaita Berbec
通讯作者:
Mihaita Berbec
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
L. Bowen
通讯作者:
L. Bowen
影响因子:
0.9
作者:
S. Popa
通讯作者:
S. Popa