Commutant Lifting for Commuting Row Contractions
classification
🧮 math.OA
math.FA
keywords
tildecommutingoperatorarvesoncommutantcommutescontractioncontractions
read the original abstract
If $T= \big[ T_1 ... T_n\big]$ is a row contraction with commuting entries, and the Arveson dilation is $\tilde T= \big[ \tilde T_1 ... \tilde T_n\big]$, then any operator $X$ commuting with each $T_i$ dilates to an operator $Z$ of the same norm which commutes with each $\tilde T_i$.
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