Browsing Matemática Aplicada II by Subject "Contractions"
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Article
Quasi-similarity of contractions having 2 x 2 a singular characteristic function
(Elsevier, 2008)LetT1:H1→H1be a completely non-unitary contraction having a 2×2 singular characteristic function Θ1; thatis, Θ1=[θi,j]i, ...