A metric characterization of freeness
A metric characterization of freeness
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自由度的度量表征
DOI:
10.1016/j.jfa.2022.109562
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发表时间:
2022
影响因子:
1.7
通讯作者:
B.
中科院分区:
文献类型:
--
作者:
Cadilhac;L. and Collins;B.
Let M be a finite von Neumann algebra and u 1,…, u N be unitaries in M. We show that u 1,…, u N freely generate L (F N) if and only if‖∑ i= 1 N u i⊗(u i op)⁎+ u i⁎⊗ u i op‖ M⊗‾ M op= 2 2 N− 1.