论文标题
Cauchy循环$ 2 $ - iSomerties的双重亚正态问题
The Cauchy dual subnormality problem for cyclic $2$-isometries
论文作者
论文摘要
Cauchy双重亚正态问题询问$ 2 $ - 异测量法的Cauchy双操作员是否是亚正常的。最近，这个问题已经解决了。在这里，我们证明它即使在循环$ 2 $ isometries的类别中也具有负面解决方案。
The Cauchy dual subnormality problem asks whether the Cauchy dual operator of a $2$-isometry is subnormal. Recently this problem has been solved in the negative. Here we show that it has a negative solution even in the class of cyclic $2$-isometries.
