Curto, Raúl E.; Lee, Sang Hoon; Yoon, Jasang Quasinormality of powers of commuting pairs of bounded operators. (English) Zbl 07135409 J. Funct. Anal. 278, No. 3, Article ID 108342, 23 p. (2020). MSC: 47B20 47B37 47A13 28A50 44A60 47-04 47A20 PDF BibTeX XML Cite \textit{R. E. Curto} et al., J. Funct. Anal. 278, No. 3, Article ID 108342, 23 p. (2020; Zbl 07135409) Full Text: DOI
Benhida, Chafiq; Curto, Raúl E.; Lee, Sang Hoon; Yoon, Jasang Joint spectra of spherical Aluthge transforms of commuting \(n\)-tuples of Hilbert space operators. (Spectres joints des transformées d’aluthge sphériques de \(n\)-uplets commutatifs d’opérateurs d’un espace de Hilbert.) (English. French summary) Zbl 07132528 C. R., Math., Acad. Sci. Paris 357, No. 10, 799-802 (2019). MSC: 47A13 46E22 47B32 PDF BibTeX XML Cite \textit{C. Benhida} et al., C. R., Math., Acad. Sci. Paris 357, No. 10, 799--802 (2019; Zbl 07132528) Full Text: DOI
Curto, Raúl E.; Lee, Sang Hoon; Yoon, Jasang One-step extensions of subnormal 2-variable weighted shifts. (English) Zbl 1318.47033 Integral Equations Oper. Theory 78, No. 3, 415-426 (2014). Reviewer: Takanori Yamamoto (Sapporo) MSC: 47B20 47B37 47A13 28A50 44A60 47A20 PDF BibTeX XML Cite \textit{R. E. Curto} et al., Integral Equations Oper. Theory 78, No. 3, 415--426 (2014; Zbl 1318.47033) Full Text: DOI
Curto, Raúl Enrique; Lee, Sang Hoon; Yoon, Jasang Subnormality of 2-variable weighted shifts with diagonal core. (English. French summary) Zbl 1266.47038 C. R., Math., Acad. Sci. Paris 351, No. 5-6, 203-207 (2013). MSC: 47B20 47B37 PDF BibTeX XML Cite \textit{R. E. Curto} et al., C. R., Math., Acad. Sci. Paris 351, No. 5--6, 203--207 (2013; Zbl 1266.47038) Full Text: DOI
Curto, Raúl E.; Lee, Sang Hoon; Yoon, Jasang Completion of Hankel partial contractions of extremal type. (English) Zbl 1287.15010 J. Math. Phys. 53, No. 12, 123526, 11 p. (2012). Reviewer: Małgorzata Michalska (Lublin) MSC: 15A83 15B05 15A60 47B35 47H09 PDF BibTeX XML Cite \textit{R. E. Curto} et al., J. Math. Phys. 53, No. 12, 123526, 11 p. (2012; Zbl 1287.15010) Full Text: DOI
Curto, Raúl E.; Lee, Sang Hoon; Yoon, Jasang Subnormality for arbitrary powers of 2-variable weighted shifts whose restrictions to a large invariant subspace are tensor products. (English) Zbl 1273.47040 J. Funct. Anal. 262, No. 2, 569-583 (2012). Reviewer: Jiangtao Yuan (Henan) MSC: 47B20 PDF BibTeX XML Cite \textit{R. E. Curto} et al., J. Funct. Anal. 262, No. 2, 569--583 (2012; Zbl 1273.47040) Full Text: DOI arXiv
Curto, Raúl E.; Lee, Sang Hoon; Yoon, Jasang A new approach to the 2-variable subnormal completion problem. (English) Zbl 1202.47022 J. Math. Anal. Appl. 370, No. 1, 270-283 (2010). Reviewer: Florian-Horia Vasilescu (Villeneuve d’Ascq) MSC: 47B20 47B37 44A60 PDF BibTeX XML Cite \textit{R. E. Curto} et al., J. Math. Anal. Appl. 370, No. 1, 270--283 (2010; Zbl 1202.47022) Full Text: DOI arXiv
Curto, Raúl E.; Lee, Sang Hoon; Yoon, Jasang Which 2-hyponormal 2-variable weighted shifts are subnormal? (English) Zbl 1154.47015 Linear Algebra Appl. 429, No. 8-9, 2227-2238 (2008). Reviewer: Abdellatif Bourhim (Syracuse) MSC: 47B20 47B37 47A13 44A60 47-04 47A20 28A50 PDF BibTeX XML Cite \textit{R. E. Curto} et al., Linear Algebra Appl. 429, No. 8--9, 2227--2238 (2008; Zbl 1154.47015) Full Text: DOI
Curto, Raúl E.; Lee, Sang Hoon; Yoon, Jasang Reconstruction of the Berger measure when the core is of tensor form. (English) Zbl 1191.47028 Ferrer Santos, Walter (ed.) et al., Actas del XVI coloquio Latinoamericano de álgebra. Madrid: Revista Matemática Iberoamericana (ISBN 978-84-611-7907-7/pbk). Biblioteca de la Revista Matemática Iberoamericana, 317-331 (2007). MSC: 47B20 47B37 47A13 PDF BibTeX XML Cite \textit{R. E. Curto} et al., in: Actas del XVI coloquio Latinoamericano de álgebra. Madrid: Revista Matemática Iberoamericana. 317--331 (2007; Zbl 1191.47028) Full Text: arXiv
Curto, Raúl E.; Lee, Sang Hoon; Yoon, Jasang Hyponormality and subnormality for powers of commuting pairs of subnormal operators. (English) Zbl 1124.47015 J. Funct. Anal. 245, No. 2, 390-412 (2007). Reviewer: Abdellatif Bourhim (Québec) MSC: 47B20 47B37 47A13 PDF BibTeX XML Cite \textit{R. E. Curto} et al., J. Funct. Anal. 245, No. 2, 390--412 (2007; Zbl 1124.47015) Full Text: DOI arXiv
Curto, Raúl E.; Lee, Sang Hoon Quartically hyponormal weighted shifts need not be 3-hyponormal. (English) Zbl 1079.47027 J. Math. Anal. Appl. 314, No. 2, 455-463 (2006). MSC: 47B20 47B37 PDF BibTeX XML Cite \textit{R. E. Curto} and \textit{S. H. Lee}, J. Math. Anal. Appl. 314, No. 2, 455--463 (2006; Zbl 1079.47027) Full Text: DOI arXiv
Curto, Raúl E.; Lee, Sang Hoon; Yoon, Jasang \(k\)-Hyponormality of multivariable weighted shifts. (English) Zbl 1088.47011 J. Funct. Anal. 229, No. 2, 462-480 (2005). MSC: 47B20 47B37 47A13 28A50 44A60 47-04 47A20 PDF BibTeX XML Cite \textit{R. E. Curto} et al., J. Funct. Anal. 229, No. 2, 462--480 (2005; Zbl 1088.47011) Full Text: DOI arXiv
Curto, Raúl E.; Lee, Sang Hoon; Lee, Woo Young A new criterion for \(k\)-hyponormality via weak subnormality. (English) Zbl 1066.47022 Proc. Am. Math. Soc. 133, No. 6, 1805-1816 (2005). Reviewer: Wang Gongbao (Wuhan) MSC: 47B20 47B35 47A63 47B37 47B38 47A05 30D50 PDF BibTeX XML Cite \textit{R. E. Curto} et al., Proc. Am. Math. Soc. 133, No. 6, 1805--1816 (2005; Zbl 1066.47022) Full Text: DOI
Curto, Raúl E.; Lee, Sang Hoon; Lee, Woo Young Subnormality and 2-hyponormality for Toeplitz operators. (English) Zbl 1042.47016 Integral Equations Oper. Theory 44, No. 2, 138-148 (2002). Reviewer: Nikolai K. Karapetyants (Rostov-na-Donu) MSC: 47B20 47B35 PDF BibTeX XML Cite \textit{R. E. Curto} et al., Integral Equations Oper. Theory 44, No. 2, 138--148 (2002; Zbl 1042.47016) Full Text: DOI