Cho, Muneo; Curto, Raúl E.; Lee, Woo Young Triangular Toeplitz contractions and Cowen sets for analytic polynomials. (English) Zbl 1001.47016 Proc. Am. Math. Soc. 130, No. 12, 3597-3604 (2002). MSC: 47B35 47B20 15A60 15B57 30D50 47A66 PDF BibTeX XML Cite \textit{M. Cho} et al., Proc. Am. Math. Soc. 130, No. 12, 3597--3604 (2002; Zbl 1001.47016) Full Text: DOI
Chō, Muneo; Curto, Raúl E.; Huruya, Tadasi \(n\)-tuples of operators satisfying \(\sigma_T(AB)=\sigma_T(BA)\). (English) Zbl 1050.47007 Linear Algebra Appl. 341, No. 1-3, 291-298 (2002). Reviewer: Andrzej Sołtysiak (Poznań) MSC: 47A13 47A10 PDF BibTeX XML Cite \textit{M. Chō} et al., Linear Algebra Appl. 341, No. 1--3, 291--298 (2002; Zbl 1050.47007) Full Text: DOI
Chō, M.; Curto, R. E.; Huruya, T.; Żelazko, W. Cartesian form of Putnam’s inequality for doubly commuting hyponormal \(n\)-tuples. (English) Zbl 0982.47021 Indiana Univ. Math. J. 49, No. 4, 1437-1448 (2000). Reviewer: Takashi Yoshino (Sendai) MSC: 47B20 47A13 PDF BibTeX XML Cite \textit{M. Chō} et al., Indiana Univ. Math. J. 49, No. 4, 1437--1448 (2000; Zbl 0982.47021) Full Text: DOI