论文标题
无限运算符的某些属性$ tt^*$和$ t^*t $
Some properties of the adjoint of the unbounded operators $TT^*$ and $T^*T$
论文作者
论文摘要
在本说明中,我们主要研究身份的有效性$(tt^*)^*= tt^*$和$(t^*t)^*= t^*t $,其中$ t $是密集定义的可闭合(或对称)操作员。
In this note, we mainly investigate the validity of the identities $(TT^*)^*=TT^*$ and $(T^*T)^*=T^*T$, where $T$ is a densely defined closable (or symmetric) operator.