Abstract
Let $T$ be a $C_0$ contraction. Using the Jordan model, we prove that $T$ is quasisimilar to an irreducible operator if and only if $T$ is not quadratic and $T-\lambda I$ is not finite-rank for any complex number $\lambda$.
Citation
Ching-I Hsin. "$ C_0$ CONTRACTIONS QUASISIMILAR TO IRREDUCIBLE ONES." Taiwanese J. Math. 6 (1) 39 - 58, 2002. https://doi.org/10.11650/twjm/1500407398
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