Normal states on algebras of unbounded operators

Self-adjoint algebras of unbounded operators

Robert T. Powers · Communications in Mathematical Physics · 1971 · 273 citations · Full text

Spectral Theory, Topological Semigroups, Linear Operator +4

Notes on some inequalities for linear operators

Tosio Kato · Mathematische Annalen · 1952 · 206 citations

Linear Operator, Linear Operators, Norm (Mathematics) +2

The quantum problem of moments II

S. L. Woronowicz · Reports on Mathematical Physics · 1971 · 29 citations

Spectral Theory, Quantum Science, Engineering +8

The quantum problem of moments I

S. L. Woronowicz · Reports on Mathematical Physics · 1970 · 25 citations

Spectral Theory, Quantum Science, Engineering +8

Positive linear functional on ∗-algebras of unbounded operators

Thomas Sherman · Journal of Mathematical Analysis and Applications · 1968 · 20 citations

Spectral Theory, Topological Semigroups, Linear Operator +3