The Sz.-Nagy dilation theorem (proved by Béla Szőkefalvi-Nagy) states that every contraction T {\displaystyle T} on a Hilbert space H {\displaystyle H}...

Dilation theorem may refer to: Dilation theorem for contraction semigroups Sz.-Nagy's dilation theorem Stinespring dilation theorem Naimark's dilation...

(operator-)parametrizations of positive and unitary matrices. Sz.-Nagy's dilation theorem, proved in 1953, states that for any contraction T on a Hilbert...

following mathematicians have been awarded the medal: Sz.-Nagy's dilation theorem Erdős-Nagy theorem Operator theory: advances and applications. Recent advances...

In mathematics, Stinespring's dilation theorem, also called Stinespring's factorization theorem, named after W. Forrest Stinespring, is a result from...

minimal unitary dilation acting on some Hilbert space K {\displaystyle K} (which can be shown to exist by Sz.-Nagy's dilation theorem), and R {\displaystyle...

\partial X} dilation with this property. This generalises Sz.-Nagy's dilation theorem as all contractions have the unit disc as a spectral set. Sz.-Nagy & Foiaş...

(functional analysis) Sz.-Nagy's dilation theorem (operator theory) Tomita's theorem (operator algebras) Von Neumann bicommutant theorem (functional analysis)...

{\displaystyle PU^{n}P=T^{n}} . This is precisely Sz.-Nagy's dilation theorem and hints at an important dilation-theoretic characterization of positivity that...

then T {\displaystyle T} has a normal boundary dilation. This generalises Sz.-Nagy's dilation theorem, which can be seen as a consequence of this by letting...