Cheng, Che-Man; Liang, Yaru Singular values, eigenvalues and diagonal elements of the commutator of \(2\times 2\) rank one matrices. (English) Zbl 1432.15006 Electron. J. Linear Algebra 36, 1-20 (2020). MSC: 15A18 15A60 PDFBibTeX XMLCite \textit{C.-M. Cheng} and \textit{Y. Liang}, Electron. J. Linear Algebra 36, 1--20 (2020; Zbl 1432.15006) Full Text: Link
Alizadeh, Rahim; Asadi, Mohammad B.; Cheng, Che-Man; Hong, Wanli; Li, Chi-Kwong Spectral radius, numerical radius, and the product of operators. (English) Zbl 1321.47009 J. Math. Anal. Appl. 423, No. 1, 639-645 (2015). Reviewer: Andrzej Sołtysiak (Poznań) MSC: 47A12 47A10 PDFBibTeX XMLCite \textit{R. Alizadeh} et al., J. Math. Anal. Appl. 423, No. 1, 639--645 (2015; Zbl 1321.47009) Full Text: DOI arXiv
Cheng, Che-Man Corrigendum to: “A note on numerical range and product of matrices”. (English) Zbl 1330.15026 Linear Algebra Appl. 459, 622-624 (2014). MSC: 15A60 15B48 15A18 PDFBibTeX XMLCite \textit{C.-M. Cheng}, Linear Algebra Appl. 459, 622--624 (2014; Zbl 1330.15026) Full Text: DOI
Cheng, Che-Man; Gao, Yuan A note on numerical range and product of matrices. (English) Zbl 1264.15021 Linear Algebra Appl. 438, No. 7, 3139-3143 (2013); corrigendum ibid. 459, 622-624 (2014). Reviewer: Maryam Khosravi (Kerman) MSC: 15A60 15B48 15A18 PDFBibTeX XMLCite \textit{C.-M. Cheng} and \textit{Y. Gao}, Linear Algebra Appl. 438, No. 7, 3139--3143 (2013; Zbl 1264.15021) Full Text: DOI
Cheng, Che-Man; Fong, Kin-Sio; Lei, Weng-Fai On some norm inequalities involving the commutator and \(XY-YX^T\). (English) Zbl 1261.15025 Linear Algebra Appl. 438, No. 6, 2793-2807 (2013). Reviewer: Costică Moroşanu (Iaşi) MSC: 15A45 15A60 PDFBibTeX XMLCite \textit{C.-M. Cheng} et al., Linear Algebra Appl. 438, No. 6, 2793--2807 (2013; Zbl 1261.15025) Full Text: DOI
Fong, Kin-Sio; Lok, Io-Kei; Cheng, Che-Man A note on the norm of the commutator and the norm of \(XY-YX^{T}\). (English) Zbl 1235.15021 Linear Algebra Appl. 435, No. 6, 1193-1201 (2011). Reviewer: Omar Hirzallah (Zarqa) MSC: 15A45 15A60 15A18 PDFBibTeX XMLCite \textit{K.-S. Fong} et al., Linear Algebra Appl. 435, No. 6, 1193--1201 (2011; Zbl 1235.15021) Full Text: DOI
Cheng, Che-Man; Vong, Seak-Weng; Wenzel, David Commutators with maximal Frobenius norm. (English) Zbl 1184.15017 Linear Algebra Appl. 432, No. 1, 292-306 (2010). Reviewer: Jorma K. Merikoski (Tampere) MSC: 15A45 15A60 PDFBibTeX XMLCite \textit{C.-M. Cheng} et al., Linear Algebra Appl. 432, No. 1, 292--306 (2010; Zbl 1184.15017) Full Text: DOI
Cheng, Che-Man; Law, Ieng-Chi; Leong, Sok-I Eigenvalue equalities for ordinary and Hadamard products of powers of positive semidefinite matrices. (English) Zbl 1123.15004 Linear Algebra Appl. 422, No. 2-3, 771-787 (2007). Reviewer: Jaspal Singh Aujla (Jalandhar) MSC: 15A18 PDFBibTeX XMLCite \textit{C.-M. Cheng} et al., Linear Algebra Appl. 422, No. 2--3, 771--787 (2007; Zbl 1123.15004) Full Text: DOI
Cheng, Che-Man; Jin, Xiao-Qing; Vong, Seak-Weng; Wang, Wei A note on spectra of optimal and superoptimal preconditioned matrices. (English) Zbl 1120.65056 Linear Algebra Appl. 422, No. 2-3, 482-485 (2007). Reviewer: Ronald H. W. Hoppe (Augsburg) MSC: 65F35 65F10 PDFBibTeX XMLCite \textit{C.-M. Cheng} et al., Linear Algebra Appl. 422, No. 2--3, 482--485 (2007; Zbl 1120.65056) Full Text: DOI
Cheng, Che-Man; Jin, Xiao-Qing Some stability properties of T. Chan’s preconditioner. (English) Zbl 1084.65043 Linear Algebra Appl. 395, 361-365 (2005). Reviewer: Răzvan Răducanu (Iaşi) MSC: 65F35 65F10 PDFBibTeX XMLCite \textit{C.-M. Cheng} and \textit{X.-Q. Jin}, Linear Algebra Appl. 395, 361--365 (2005; Zbl 1084.65043) Full Text: DOI
Cheng, Che-Man; Horn, Roger A.; Li, Chi-Kwong Inequalities and equalities for the Cartesian decomposition of complex matrices. (English) Zbl 0997.15015 Linear Algebra Appl. 341, No. 1-3, 219-237 (2002). Reviewer: Rabe von Randow (Bonn) MSC: 15A42 15B57 PDFBibTeX XMLCite \textit{C.-M. Cheng} et al., Linear Algebra Appl. 341, No. 1--3, 219--237 (2002; Zbl 0997.15015) Full Text: DOI
Cheng, Che-Man; Li, Chi-Kwong On the Hu-Hurley-Tam conjecture concerning the generalized numerical range. (English) Zbl 0948.15025 Linear Algebra Appl. 305, No. 1-3, 87-97 (2000). Reviewer: Alexey Alimov (Moskva) MSC: 15A60 PDFBibTeX XMLCite \textit{C.-M. Cheng} and \textit{C.-K. Li}, Linear Algebra Appl. 305, No. 1--3, 87--97 (2000; Zbl 0948.15025) Full Text: DOI
Cheng, Che-Man On principal sections of a pair of forms. (English) Zbl 0861.15020 Proc. Am. Math. Soc. 123, No. 10, 2949-2954 (1995). Reviewer: A.R.Kräuter (Leoben) MSC: 15A42 15B57 15A24 PDFBibTeX XMLCite \textit{C.-M. Cheng}, Proc. Am. Math. Soc. 123, No. 10, 2949--2954 (1995; Zbl 0861.15020) Full Text: DOI
Cheng, Che-Man; Li, Chi-Kwong Some geometrical properties of the decomposable numerical range. (English) Zbl 0819.15019 Linear Multilinear Algebra 37, No. 1-3, 207-212 (1994). Reviewer: V.Prepeliţă (Bucureşti) MSC: 15A60 15B57 PDFBibTeX XMLCite \textit{C.-M. Cheng} and \textit{C.-K. Li}, Linear Multilinear Algebra 37, No. 1--3, 207--212 (1994; Zbl 0819.15019) Full Text: DOI
Cheng, Che-Man On the decomposable numerical range of \(\lambda I-N\). (English) Zbl 0816.15025 Linear Multilinear Algebra 37, No. 1-3, 197-205 (1994). Reviewer: J.Zemánek (Warszawa) MSC: 15A60 PDFBibTeX XMLCite \textit{C.-M. Cheng}, Linear Multilinear Algebra 37, No. 1--3, 197--205 (1994; Zbl 0816.15025) Full Text: DOI
Cheng, Che-Man Independence of eigenvalues and independence of singular values of submatrices. (English) Zbl 0754.15004 Linear Algebra Appl. 166, 115-129 (1992). Reviewer: R.von Randow (Bonn) MSC: 15A18 15A42 PDFBibTeX XMLCite \textit{C.-M. Cheng}, Linear Algebra Appl. 166, 115--129 (1992; Zbl 0754.15004) Full Text: DOI
Cheng, Che-Man Cases of equality for a singular value inequality for the Hadamard product. (English) Zbl 0812.15010 Linear Algebra Appl. 177, 209-231 (1992). MSC: 15A42 PDFBibTeX XMLCite \textit{C.-M. Cheng}, Linear Algebra Appl. 177, 209--231 (1992; Zbl 0812.15010) Full Text: DOI
Cheng, Che-Man An approximation problem with respect to symmetric gauge functions with application to matrix spaces. (English) Zbl 0732.41034 Linear Multilinear Algebra 29, No. 3-4, 169-180 (1991). Reviewer: T.D.Narang (Amritsar) MSC: 41A65 PDFBibTeX XMLCite \textit{C.-M. Cheng}, Linear Multilinear Algebra 29, No. 3--4, 169--180 (1991; Zbl 0732.41034) Full Text: DOI