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Dilations, Functoinal Model And A Complete Unitary Invariant Of A r-contraction.
(2013-08-02)
A pair of commuting bounded operators (S, P) for which the set
r = {(z 1 +z 2,z 1z 2) : |z 1| ≤1, |z 2| ≤1} C2 is a spectral set, is called a r-contraction in the literature. For a contraction P and a bounded commutant ...