Positive extensions of automorphisms of spin factors
Positive extensions of automorphisms of spin factors
复制标题
自旋因子自同构的正扩展
DOI:
10.1017/s0308210500016139
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发表时间:
1983
期刊:
影响因子:
--
通讯作者:
A. Robertson
中科院分区:
文献类型:
--
作者:
A. Robertson
Synopsis A spin factor is a JW-factor of type I2. It is shown that certain automorphisms of finite dimensional spin factors extend to extremal positive linear maps on complex matrix algebras which are not decomposable, and hence, do not preserve extreme rays of the positive cone.