Invariant subspaces of some non-selfadjoint operators
نویسندگان
چکیده
منابع مشابه
Selfadjoint time operators and invariant subspaces
For classical dynamical systems time operators are introduced as selfadjoint operators satisfying the so called weak Weyl relation (WWR) with the unitary groups of time evolution. Dynamical systems with time operators are intrinsically irreversible because they admit Lyapounov operators as functions of the time operator. For quantum systems selfadjoint time operators are defined in the same way...
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ژورنال
عنوان ژورنال: Tohoku Mathematical Journal
سال: 1968
ISSN: 0040-8735
DOI: 10.2748/tmj/1178243138