Von Neumann's Theorem: Mathematics, Operator Theory, Linear Operator, Hilbert Space

Operator Topology: Mathematics, Functional Analysis, Topology, Bounded Linear Operator, Hilbert Space, Norm

Von Neumann's Inequality: Operator Theory, Hilbert Space, Foundations of Mathematics, Axiomatic Set Theory

Von Neumann Bicommutant Theorem: Functional Analysis, Closure (Mathematics), Bounded Operator

Atkinson's Theorem: Operator Theory, Fredholm Operator, Compact