Entropy of some automorphisms of theII1-factor of the free group in infinite number of generators

Entropy of some automorphisms of theII1-factor of the free group in infinite number of generators
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无限个生成元中自由群 II1 因子的一些自同构的熵

DOI:
10.1007/bf01231324
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发表时间:
1992
影响因子:
3.1
通讯作者:
E. Størmer
E. Størmer
中科院分区:
数学1区
文献类型:
--
作者:
E. Størmer

文献摘要

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设L(F∞)是自由群F∞在无穷多个生成元中定义的II1-因子。证明了对于L(F∞)的一类由∞上的生成元集的双射产生的自同构,包括自由移位在内,其熵为零。
SummaryLetL(F∞) be theII1-factor defined by the free groupF∞ in infinite number of generators. It is shown that for a class of automorphisms ofL(F∞) arising from bijections of the set of generators ofF∞ on itself, and including the free shift, the entropy is zero.