Gu, Caixing; Hwang, In Sung; Lee, Woo Young On Douglas-Shapiro-Shields factorizations. (English) Zbl 1498.47068 Filomat 34, No. 4, 1053-1060 (2020). MSC: 47B35 46E40 30H10 47A68 PDFBibTeX XMLCite \textit{C. Gu} et al., Filomat 34, No. 4, 1053--1060 (2020; Zbl 1498.47068) Full Text: DOI
Gu, Caixing; Hwang, In Sung; Lee, Woo Young Hyponormality of Toeplitz operators in several variables by the weighted shifts approach. (English) Zbl 07250996 Linear Multilinear Algebra 68, No. 8, 1695-1720 (2020). MSC: 47B35 47B20 47A13 PDFBibTeX XMLCite \textit{C. Gu} et al., Linear Multilinear Algebra 68, No. 8, 1695--1720 (2020; Zbl 07250996) Full Text: DOI
Gu, Caixing; Hwang, In Sung; Kang, Dong-O; Lee, Woo Young Normal singular Cauchy integral operators with operator-valued symbols. (English) Zbl 1356.47053 J. Math. Anal. Appl. 447, No. 1, 289-308 (2017). MSC: 47G10 45E05 46E40 42A50 47B20 PDFBibTeX XMLCite \textit{C. Gu} et al., J. Math. Anal. Appl. 447, No. 1, 289--308 (2017; Zbl 1356.47053) Full Text: DOI
Chō, Muneo; Gu, Caixing; Lee, Woo Young Elementary properties of isometries on a Hilbert space. (English) Zbl 1356.47023 Linear Algebra Appl. 511, 378-402 (2016). MSC: 47A65 47A45 PDFBibTeX XMLCite \textit{M. Chō} et al., Linear Algebra Appl. 511, 378--402 (2016; Zbl 1356.47023) Full Text: DOI
Curto, Raúl E.; Hwang, In Sung; Lee, Woo Young A subnormal Toeplitz completion problem. (English) Zbl 1327.47025 Ball, Joseph A. (ed.) et al., Operator theory in harmonic and non-commutative analysis. 23rd international workshop in operator theory and its applications, IWOTA, Sydney, Australia, July 16–20, 2012. Cham: Birkhäuser/Springer (ISBN 978-3-319-06265-5/hbk; 978-3-319-06266-2/ebook). Operator Theory: Advances and Applications 240, 87-110 (2014). MSC: 47B35 47B20 47-02 PDFBibTeX XMLCite \textit{R. E. Curto} et al., Oper. Theory: Adv. Appl. 240, 87--110 (2014; Zbl 1327.47025) Full Text: DOI
Curto, Raúl E.; Hwang, In Sung; Kang, Dong-O; Lee, Woo Young Subnormal and quasinormal Toeplitz operators with matrix-valued rational symbols. (English) Zbl 1318.47031 Adv. Math. 255, 562-585 (2014). Reviewer: Takanori Yamamoto (Sapporo) MSC: 47B20 47B35 46J15 15A83 30H10 47A20 PDFBibTeX XMLCite \textit{R. E. Curto} et al., Adv. Math. 255, 562--585 (2014; Zbl 1318.47031) Full Text: DOI
Curto, Raúl E.; Hwang, In Sung; Lee, Woo Young Hyponormality and subnormality of block Toeplitz operators. (English) Zbl 1248.47029 Adv. Math. 230, No. 4-6, 2094-2151 (2012). Reviewer: Alexei Yu. Karlovich (Lisboa) MSC: 47B35 47B20 47A13 30H10 47A20 47A57 PDFBibTeX XMLCite \textit{R. E. Curto} et al., Adv. Math. 230, No. 4--6, 2094--2151 (2012; Zbl 1248.47029) Full Text: DOI arXiv
Lee, Sang Hoon; Lee, Woo Young Hyponormal operators with rank-two self-commutators. (English) Zbl 1171.47017 J. Math. Anal. Appl. 351, No. 2, 616-626 (2009). Reviewer: Michal Zajac (Bratislava) MSC: 47B20 47B15 PDFBibTeX XMLCite \textit{S. H. Lee} and \textit{W. Y. Lee}, J. Math. Anal. Appl. 351, No. 2, 616--626 (2009; Zbl 1171.47017) Full Text: DOI
Curto, Raúl E.; Lee, Woo Young \(k\)-hyponormality of finite rank perturbations of unilateral weighted shifts. (English) Zbl 1072.47018 Trans. Am. Math. Soc. 357, No. 12, 4719-4737 (2005). MSC: 47B20 47B35 47B37 47-04 47A20 47A57 PDFBibTeX XMLCite \textit{R. E. Curto} and \textit{W. Y. Lee}, Trans. Am. Math. Soc. 357, No. 12, 4719--4737 (2005; Zbl 1072.47018) 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 PDFBibTeX XMLCite \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, Woo Young Solution of the quadratically hyponormal completion problem. (English) Zbl 1049.47021 Proc. Am. Math. Soc. 131, No. 8, 2479-2489 (2003). Reviewer: B. P. Duggal (Al Ain) MSC: 47B20 47B35 47B37 47-04 47A20 47A57 PDFBibTeX XMLCite \textit{R. E. Curto} and \textit{W. Y. Lee}, Proc. Am. Math. Soc. 131, No. 8, 2479--2489 (2003; Zbl 1049.47021) Full Text: DOI
Curto, Raúl E.; Lee, Woo Young Towards a model theory for 2-hyponormal operators. (English) Zbl 1052.47016 Integral Equations Oper. Theory 44, No. 3, 290-315 (2002). Reviewer: Eungil Ko (Seoul) MSC: 47B20 47B37 47-04 PDFBibTeX XMLCite \textit{R. E. Curto} and \textit{W. Y. Lee}, Integral Equations Oper. Theory 44, No. 3, 290--315 (2002; Zbl 1052.47016) Full Text: DOI
Curto, Raúl E.; Jung, Il Bong; Lee, Woo Young Extensions and extremality of recursively generated weighted shifts. (English) Zbl 1003.47025 Proc. Am. Math. Soc. 130, No. 2, 565-576 (2002). Reviewer: Gerhard Garske (Hagen) MSC: 47B37 47B20 47-04 47A57 15B57 PDFBibTeX XMLCite \textit{R. E. Curto} et al., Proc. Am. Math. Soc. 130, No. 2, 565--576 (2002; Zbl 1003.47025) Full Text: DOI