Kuzma, Bojan; Li, Chi-Kwong; Singla, Sushil; Poon, Edward Linear maps preserving parallel matrix pairs with respect to the Ky-Fan \(k\)-norm. (English) Zbl 07810691 Linear Algebra Appl. 687, 68-90 (2024). MSC: 15A60 15A04 15A86 47B65 PDFBibTeX XMLCite \textit{B. Kuzma} et al., Linear Algebra Appl. 687, 68--90 (2024; Zbl 07810691) Full Text: DOI arXiv
Li, Chi-Kwong A matrix equation and the Jordan canonical form. (English) Zbl 07810688 Linear Algebra Appl. 687, 1-7 (2024). MSC: 15A24 15A20 PDFBibTeX XMLCite \textit{C.-K. Li}, Linear Algebra Appl. 687, 1--7 (2024; Zbl 07810688) Full Text: DOI
Huang, Zejun; Li, Chi-Kwong; Sze, Nung-Sing Constructing a straight line intersecting four lines. (English) Zbl 07787821 Linear Algebra Appl. 683, 201-210 (2024). MSC: 51N20 15A99 PDFBibTeX XMLCite \textit{Z. Huang} et al., Linear Algebra Appl. 683, 201--210 (2024; Zbl 07787821) Full Text: DOI
Li, Chi-Kwong; Lin, Jephian C. -H. Companion matrix, Vandermonde matrix, Jordan form, Interpolating Polynomials, and Linear Transformations. arXiv:2403.01474 Preprint, arXiv:2403.01474 [math.CO] (2024). MSC: 15A20 15A21 33C45 BibTeX Cite \textit{C.-K. Li} and \textit{J. C. H. Lin}, ``Companion matrix, Vandermonde matrix, Jordan form, Interpolating Polynomials, and Linear Transformations'', Preprint, arXiv:2403.01474 [math.CO] (2024) Full Text: arXiv OA License
Li, Chi-Kwong The \(C\)-numerical range and unitary dilations. (English) Zbl 07794404 Acta Sci. Math. 89, No. 3-4, 437-448 (2023). MSC: 47A12 47A20 15A60 PDFBibTeX XMLCite \textit{C.-K. Li}, Acta Sci. Math. 89, No. 3--4, 437--448 (2023; Zbl 07794404) Full Text: DOI arXiv
Chien, Mao-Ting; Kirkland, Steve; Li, Chi-Kwong; Nakazato, Hiroshi Numerical ranges of cyclic shift matrices. (English) Zbl 07757996 Linear Algebra Appl. 678, 268-294 (2023). MSC: 15A60 15A18 47A12 05B20 PDFBibTeX XMLCite \textit{M.-T. Chien} et al., Linear Algebra Appl. 678, 268--294 (2023; Zbl 07757996) Full Text: DOI arXiv
Gau, Hwa-Long; Li, Chi-Kwong; Wang, Kuo-Zhong; Wu, Pei Yuan Extremality of bounds for numerical radii of Foguel operators. (English) Zbl 07725220 J. Math. Anal. Appl. 528, No. 1, Article ID 127484, 18 p. (2023). MSC: 47Bxx 47Axx 15Axx PDFBibTeX XMLCite \textit{H.-L. Gau} et al., J. Math. Anal. Appl. 528, No. 1, Article ID 127484, 18 p. (2023; Zbl 07725220) Full Text: DOI
Li, Chi-Kwong; Tsai, Ming-Cheng; Wang, Ya-Shu; Wong, Ngai-Ching Linear maps preserving matrices annihilated by a fixed polynomial. (English) Zbl 07712334 Linear Algebra Appl. 674, 46-67 (2023). MSC: 15A86 15A04 15A30 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Linear Algebra Appl. 674, 46--67 (2023; Zbl 07712334) Full Text: DOI arXiv
Friedland, Shmuel; Li, Chi-Kwong On semidefinite programming characterizations of the numerical radius and its dual norm. arXiv:2308.07287 Preprint, arXiv:2308.07287 [math.NA] (2023). MSC: 15A60 15A69 68Q25 68W25 81P40 90C22 90C51 BibTeX Cite \textit{S. Friedland} and \textit{C.-K. Li}, ``On semidefinite programming characterizations of the numerical radius and its dual norm'', Preprint, arXiv:2308.07287 [math.NA] (2023) Full Text: arXiv OA License
Chan, Jor-Ting; Li, Chi-Kwong Unitarily invariant norms on operators. (English) Zbl 1524.15048 Acta Sci. Math. 88, No. 3-4, 611-625 (2022). Reviewer: John D. Dixon (Ottawa) MSC: 15A60 15A04 47B48 47A30 PDFBibTeX XMLCite \textit{J.-T. Chan} and \textit{C.-K. Li}, Acta Sci. Math. 88, No. 3--4, 611--625 (2022; Zbl 1524.15048) Full Text: DOI arXiv
Chan, Jor-Ting; Li, Chi-Kwong; Poon, Yiu-Tung Joint \(k\)-numerical ranges of operators. (English) Zbl 07614117 Acta Sci. Math. 88, No. 1-2, 279-319 (2022). MSC: 47A12 15A60 PDFBibTeX XMLCite \textit{J.-T. Chan} et al., Acta Sci. Math. 88, No. 1--2, 279--319 (2022; Zbl 07614117) Full Text: DOI
Lau, Pan-Shun; Li, Chi-Kwong; Poon, Yiu-Tung The joint numerical range of commuting matrices. (English) Zbl 1500.15014 Stud. Math. 267, No. 3, 241-259 (2022). Reviewer: Tin Yau Tam (Reno) MSC: 15A60 47A12 47A20 PDFBibTeX XMLCite \textit{P.-S. Lau} et al., Stud. Math. 267, No. 3, 241--259 (2022; Zbl 1500.15014) Full Text: DOI
Hambric, Christopher Logan; Li, Chi-Kwong; Pelejo, Diane Christine; Shi, Junping Minimum number of non-zero-entries in a stable matrix exhibiting Turing instability. (English) Zbl 1503.15047 Discrete Contin. Dyn. Syst., Ser. S 15, No. 9, 2497-2511 (2022). Reviewer: Ko-Wei Lih (Taipei) MSC: 15B35 05C20 05C50 PDFBibTeX XMLCite \textit{C. L. Hambric} et al., Discrete Contin. Dyn. Syst., Ser. S 15, No. 9, 2497--2511 (2022; Zbl 1503.15047) Full Text: DOI
Girard, Mark; Leung, Debbie; Levick, Jeremy; Li, Chi-Kwong; Paulsen, Vern; Poon, Yiu Tung; Watrous, John On the mixed-unitary rank of quantum channels. (English) Zbl 1501.81006 Commun. Math. Phys. 394, No. 2, 919-951 (2022). MSC: 81P45 81P47 46L07 94A40 15A03 PDFBibTeX XMLCite \textit{M. Girard} et al., Commun. Math. Phys. 394, No. 2, 919--951 (2022; Zbl 1501.81006) Full Text: DOI arXiv
Ilišević, Dijana; Li, Chi-Kwong; Poon, Edward Generalized circular projections. (English) Zbl 1503.15031 J. Math. Anal. Appl. 515, No. 1, Article ID 126378, 20 p. (2022). Reviewer: Hans-Olav Tylli (Helsinki) MSC: 15A60 47A30 PDFBibTeX XMLCite \textit{D. Ilišević} et al., J. Math. Anal. Appl. 515, No. 1, Article ID 126378, 20 p. (2022; Zbl 1503.15031) Full Text: DOI
Li, Chi-Kwong; Tsai, Ming-Cheng; Wang, Ya-Shu; Wong, Ngai-Ching Additive Hermitian idempotent preservers between operator algebras. (English) Zbl 1512.47068 J. Math. Anal. Appl. 505, No. 2, Article ID 125522, 11 p. (2022). Reviewer: Jerónimo Alaminos Prats (Granada) MSC: 47B49 15A86 46L10 PDFBibTeX XMLCite \textit{C.-K. Li} et al., J. Math. Anal. Appl. 505, No. 2, Article ID 125522, 11 p. (2022; Zbl 1512.47068) Full Text: DOI
Chien, Mao-Ting; Li, Chi-Kwong; Nakazato, Hiroshi The diameter and width of higher rank numerical ranges. (English) Zbl 1462.15026 Linear Multilinear Algebra 69, No. 5, 871-887 (2021). MSC: 15A60 52A10 47A12 PDFBibTeX XMLCite \textit{M.-T. Chien} et al., Linear Multilinear Algebra 69, No. 5, 871--887 (2021; Zbl 1462.15026) Full Text: DOI
Cao, Ningping; Kribs, David W.; Li, Chi-Kwong; Nelson, Mike I.; Poon, Yiu-Tung; Zeng, Bei Higher rank matricial ranges and hybrid quantum error correction. (English) Zbl 1521.47116 Linear Multilinear Algebra 69, No. 5, 827-839 (2021). MSC: 47L90 81P45 81P70 94A40 47A12 15A60 81P68 PDFBibTeX XMLCite \textit{N. Cao} et al., Linear Multilinear Algebra 69, No. 5, 827--839 (2021; Zbl 1521.47116) Full Text: DOI arXiv
Chan, Jor-Ting; Li, Chi-Kwong; Poon, Yiu-Tung WITHDRAWN: Commuting normal operators and joint numerical range. arXiv:2108.05414 Preprint, arXiv:2108.05414 [math.FA] (2021); retraction notice ibid. MSC: 47A12 15A60 BibTeX Cite \textit{J.-T. Chan} et al., ``WITHDRAWN: Commuting normal operators and joint numerical range'', Preprint, arXiv:2108.05414 [math.FA] (2021); retraction notice ibid. Full Text: arXiv OA License
Chan, Jor-Ting; Li, Chi-Kwong; Poon, Yiu-Tung The joint \(k\)-numerical range of operators. arXiv:2105.04621 Preprint, arXiv:2105.04621 [math.FA] (2021). MSC: 15A60 BibTeX Cite \textit{J.-T. Chan} et al., ``The joint $k$-numerical range of operators'', Preprint, arXiv:2105.04621 [math.FA] (2021) Full Text: arXiv OA License
Duan, Xuefeng; Li, Chi-Kwong; Pelejo, Diane Christine Construction of quantum states with special properties by projection methods. (English) Zbl 1509.81156 Quantum Inf. Process. 19, No. 11, Paper No. 399, 34 p. (2020). MSC: 81P45 81P68 15A69 15B57 46N10 81-08 PDFBibTeX XMLCite \textit{X. Duan} et al., Quantum Inf. Process. 19, No. 11, Paper No. 399, 34 p. (2020; Zbl 1509.81156) Full Text: DOI arXiv
Ding, Wenxuan; Li, Chi-Kwong; Li, Yuqiao A note on unitarily invariant matrix norms. (English) Zbl 1457.15021 Linear Algebra Appl. 607, 341-346 (2020). MSC: 15A60 47A30 PDFBibTeX XMLCite \textit{W. Ding} et al., Linear Algebra Appl. 607, 341--346 (2020; Zbl 1457.15021) Full Text: DOI
Li, Chi-Kwong; Strang, Gilbert An elementary proof of Mirsky’s low rank approximation theorem. (English) Zbl 1453.15009 Electron. J. Linear Algebra 36, 694-697 (2020). MSC: 15A60 15A18 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{G. Strang}, Electron. J. Linear Algebra 36, 694--697 (2020; Zbl 1453.15009) Full Text: Link
Li, Chi-Kwong; Poon, Yiu-Tung; Wang, Ya-Shu Joint numerical ranges and commutativity of matrices. (English) Zbl 1448.15020 J. Math. Anal. Appl. 491, No. 1, Article ID 124310, 11 p. (2020). MSC: 15A27 47A12 PDFBibTeX XMLCite \textit{C.-K. Li} et al., J. Math. Anal. Appl. 491, No. 1, Article ID 124310, 11 p. (2020; Zbl 1448.15020) Full Text: DOI arXiv
Lau, Pan-Shun; Li, Chi-Kwong; Poon, Yiu-Tung; Sze, Nung-Sing Joint matricial range and joint congruence matricial range of operators. (English) Zbl 1447.15020 Adv. Oper. Theory 5, No. 3, 609-626 (2020). Reviewer: Tin Yau Tam (Reno) MSC: 15A60 47A20 47A55 PDFBibTeX XMLCite \textit{P.-S. Lau} et al., Adv. Oper. Theory 5, No. 3, 609--626 (2020; Zbl 1447.15020) Full Text: DOI
Li, Chi-Kwong; Liu, Yue; Ma, Chao; Pelejo, Diane A note on parallel distinguishability of two quantum operations. (English) Zbl 1439.81012 Electron. J. Linear Algebra 36, 198-209 (2020). MSC: 81P15 81P16 46L07 46N60 15A69 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Electron. J. Linear Algebra 36, 198--209 (2020; Zbl 1439.81012) Full Text: arXiv Link
Ilišević, Dijana; Kuzma, Bojan; Li, Chi-Kwong; Poon, Edward Complexifications of real Banach spaces and their isometries. (English) Zbl 1456.46012 Linear Algebra Appl. 589, 222-241 (2020). Reviewer: Abdellatif Bourhim (Syracuse) MSC: 46B04 47A12 15A60 PDFBibTeX XMLCite \textit{D. Ilišević} et al., Linear Algebra Appl. 589, 222--241 (2020; Zbl 1456.46012) Full Text: DOI
Li, Chi-Kwong; Tsai, Mimg-Cheng; Wang, Ya-Shu; Wong, Ngai-Ching Nonsurjective maps between rectangular matrix spaces preserving disjointness, triple products, or norms. (English) Zbl 1449.15067 J. Oper. Theory 83, No. 1, 27-53 (2020). Reviewer: John D. Dixon (Ottawa) MSC: 15A86 15A04 15A60 47B49 PDFBibTeX XMLCite \textit{C.-K. Li} et al., J. Oper. Theory 83, No. 1, 27--53 (2020; Zbl 1449.15067) Full Text: arXiv
Li, Chi-Kwong; Tsai, Ming-Cheng; Wang, Ya-Shu; Wong, Ngai-Ching Nonsurjective zero product preservers between matrix spaces over an arbitrary field. arXiv:2003.05317 Preprint, arXiv:2003.05317 [math.RA] (2020). MSC: 08A35 15A86 47B48 BibTeX Cite \textit{C.-K. Li} et al., ``Nonsurjective zero product preservers between matrix spaces over an arbitrary field'', Preprint, arXiv:2003.05317 [math.RA] (2020) Full Text: arXiv OA License
Li, Chi-Kwong; Zhang, Fuzhen Eigenvalue continuity and Geršgorin’s theorem. (English) Zbl 1436.15008 Electron. J. Linear Algebra 35, 619-625 (2019). Reviewer: Tin Yau Tam (Reno) MSC: 15A18 15A60 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{F. Zhang}, Electron. J. Linear Algebra 35, 619--625 (2019; Zbl 1436.15008) Full Text: arXiv Link
Botelho-Andrade, Sara; Li, Chi-Kwong Generalized numerical ranges, dilation, and quantum error correction. (English) Zbl 1435.47011 Botelho, Fernanda (ed.), Recent trends in operator theory and applications. Workshop, The University of Memphis, Memphis, TN, USA, May 3–5, 2018. Providence, RI: American Mathematical Society (AMS). Contemp. Math. 737, 25-42 (2019). Reviewer: Tin Yau Tam (Reno) MSC: 47A12 47A13 47A20 15A60 47-02 PDFBibTeX XMLCite \textit{S. Botelho-Andrade} and \textit{C.-K. Li}, Contemp. Math. 737, 25--42 (2019; Zbl 1435.47011) Full Text: DOI
Li, Chi-Kwong; Poon, Yiu-Tung Numerical range, dilation, and completely positive maps. (English) Zbl 1458.47007 Proc. Am. Math. Soc. 147, No. 11, 4805-4811 (2019). MSC: 47A12 47A20 15A60 15A30 47B49 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{Y.-T. Poon}, Proc. Am. Math. Soc. 147, No. 11, 4805--4811 (2019; Zbl 1458.47007) Full Text: DOI arXiv
Hambric, Christopher Logan; Li, Chi-Kwong; Pelejo, Diane Christine; Shi, Junping Minimum number of non-zero-entries in a \(7 \times 7\) stable matrix. (English) Zbl 1434.15018 Linear Algebra Appl. 572, 135-152 (2019). Reviewer: Wai-Kai Chen (Fremont) MSC: 15B35 05C20 05C50 PDFBibTeX XMLCite \textit{C. L. Hambric} et al., Linear Algebra Appl. 572, 135--152 (2019; Zbl 1434.15018) Full Text: DOI arXiv
Li, Chi-Kwong; Poon, Yiu-Tung Submultiplicativity of the numerical radius of commuting matrices of order two. (English) Zbl 1425.15020 J. Math. Anal. Appl. 475, No. 1, 730-735 (2019). Reviewer: Javier Merí (Granada) MSC: 15A60 15A45 15A27 47A12 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{Y.-T. Poon}, J. Math. Anal. Appl. 475, No. 1, 730--735 (2019; Zbl 1425.15020) Full Text: DOI arXiv
Lau, Pan-Shun; Li, Chi-Kwong; Poon, Yiu-Tung; Sze, Nung-Sing The generalized numerical range of a set of matrices. (English) Zbl 1405.15029 Linear Algebra Appl. 563, 24-46 (2019). MSC: 15A60 PDFBibTeX XMLCite \textit{P.-S. Lau} et al., Linear Algebra Appl. 563, 24--46 (2019; Zbl 1405.15029) Full Text: DOI arXiv
Li, Chi-Kwong; Poon, Yiu-Tung Numerical Range Inclusion, Dilation, and Operator Systems. arXiv:1911.01221 Preprint, arXiv:1911.01221 [math.FA] (2019). MSC: 47A12 47A30 15A60 BibTeX Cite \textit{C.-K. Li} and \textit{Y.-T. Poon}, ``Numerical Range Inclusion, Dilation, and Operator Systems'', Preprint, arXiv:1911.01221 [math.FA] (2019) Full Text: arXiv OA License
Li, Chi-Kwong; Poon, Yiu-Tung; Wang, Xuefeng Ranks of quantum states with prescribed reduced states. (English) Zbl 1401.81027 Electron. J. Linear Algebra 34, 331-342 (2018). MSC: 81P45 15A18 15A60 15A42 15B48 46N50 46L07 81P16 94A40 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Electron. J. Linear Algebra 34, 331--342 (2018; Zbl 1401.81027) Full Text: arXiv
Lau, Pan-Shun; Li, Chi-Kwong; Poon, Yiu-Tung; Sze, Nung-Sing Convexity and star-shapedness of matricial range. (English) Zbl 06933546 J. Funct. Anal. 275, No. 9, 2497-2515 (2018). MSC: 47A12 47A13 47A55 15A60 PDFBibTeX XMLCite \textit{P.-S. Lau} et al., J. Funct. Anal. 275, No. 9, 2497--2515 (2018; Zbl 06933546) Full Text: DOI arXiv
Ilišević, Dijana; Kuzma, Bojan; Li, Chi-Kwong; Poon, Edward Preservers of isometries. (English) Zbl 1413.47062 Acta Sci. Math. 84, No. 1-2, 3-17 (2018). MSC: 47B49 15A60 15A86 46B04 PDFBibTeX XMLCite \textit{D. Ilišević} et al., Acta Sci. Math. 84, No. 1--2, 3--17 (2018; Zbl 1413.47062) Full Text: DOI Link
Cui, Jianlian; Li, Chi-Kwong; Sze, Nung-Sing Products of positive semi-definite matrices. (English) Zbl 1400.15014 Linear Algebra Appl. 528, 17-24 (2017). Reviewer: Erich W. Ellers (Toronto) MSC: 15A23 15B48 15A60 PDFBibTeX XMLCite \textit{J. Cui} et al., Linear Algebra Appl. 528, 17--24 (2017; Zbl 1400.15014) Full Text: DOI arXiv
Huang, Shaowu; Li, Chi-Kwong; Poon, Yiu-Tung; Wang, Qing-Wen Inequalities on generalized matrix functions. (English) Zbl 1387.15005 Linear Multilinear Algebra 65, No. 10, 1947-1961 (2017). MSC: 15A15 15A45 15A63 15B57 PDFBibTeX XMLCite \textit{S. Huang} et al., Linear Multilinear Algebra 65, No. 10, 1947--1961 (2017; Zbl 1387.15005) Full Text: DOI arXiv
Du, Hongke; Li, Chi-Kwong; Wang, Kuo-Zhong; Wang, Yueqing; Zuo, Ning Numerical ranges of the product of operators. (English) Zbl 06723306 Oper. Matrices 11, No. 1, 171-180 (2017). MSC: 47A12 15A60 PDFBibTeX XMLCite \textit{H. Du} et al., Oper. Matrices 11, No. 1, 171--180 (2017; Zbl 06723306) Full Text: DOI arXiv
Li, Chi-Kwong; Pelejo, Diane Christine; Poon, Yiu-Tung; Wang, Kuo-Zhong Minkowski product of convex sets and product numerical range. (English) Zbl 1358.52004 Oper. Matrices 10, No. 4, 945-965 (2016). Reviewer: Pedro Martín Jiménez (Badajoz) MSC: 52A10 51M15 15A60 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Oper. Matrices 10, No. 4, 945--965 (2016; Zbl 1358.52004) Full Text: DOI arXiv
Li, Chi-Kwong; Pelejo, Diane Christine; Wang, Kuo-Zhong Product of two positive contractions. (English) Zbl 1334.15038 Linear Algebra Appl. 501, 409-423 (2016). MSC: 15A23 15B48 15A60 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Linear Algebra Appl. 501, 409--423 (2016; Zbl 1334.15038) Full Text: DOI arXiv
Cui, Jianlian; Li, Chi-Kwong; Poon, Yiu-Tung Preservers of unitary similarity functions on Lie products of matrices. (English) Zbl 1334.15055 Linear Algebra Appl. 498, 160-180 (2016). MSC: 15A60 46B04 PDFBibTeX XMLCite \textit{J. Cui} et al., Linear Algebra Appl. 498, 160--180 (2016; Zbl 1334.15055) Full Text: DOI arXiv
Wang, Xuefeng; Li, Chi-Kwong; Poon, Yiu-Tung Perturbing eigenvalues of nonnegative matrices. (English) Zbl 1334.15092 Linear Algebra Appl. 498, 3-20 (2016). MSC: 15B48 15A18 PDFBibTeX XMLCite \textit{X. Wang} et al., Linear Algebra Appl. 498, 3--20 (2016; Zbl 1334.15092) Full Text: DOI arXiv
Chien, Mao-Ting; Gau, Hwa-Long; Li, Chi-Kwong; Tsai, Ming-Cheng; Wang, Kuo-Zhong Product of operators and numerical range. (English) Zbl 1337.47005 Linear Multilinear Algebra 64, No. 1, 58-67 (2016). MSC: 47A12 15A60 PDFBibTeX XMLCite \textit{M.-T. Chien} et al., Linear Multilinear Algebra 64, No. 1, 58--67 (2016; Zbl 1337.47005) Full Text: DOI
Li, Chi-Kwong; Pelejo, Diane Christine; Wang, Kuo-Zhong Optimal Bounds on Functions of Quantum States under Quantum Channels. arXiv:1601.06727 Preprint, arXiv:1601.06727 [quant-ph] (2016). MSC: 15A18 15A42 81P40 BibTeX Cite \textit{C.-K. Li} et al., ``Optimal Bounds on Functions of Quantum States under Quantum Channels'', Preprint, arXiv:1601.06727 [quant-ph] (2016) Full Text: arXiv OA License
Li, Chi-Kwong; Zhang, Fuzhen Positivity of partitioned Hermitian matrices with unitarily invariant norms. (English) Zbl 1325.15019 Positivity 19, No. 3, 439-444 (2015). Reviewer: Juan Ramon Torregrosa Sanchez (Valencia) MSC: 15A60 15B48 47A30 47B65 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{F. Zhang}, Positivity 19, No. 3, 439--444 (2015; Zbl 1325.15019) Full Text: DOI arXiv
Li, Chi-Kwong; Zhang, Shixiao Stationary probability vectors of higher-order Markov chains. (English) Zbl 1391.60176 Linear Algebra Appl. 473, 114-125 (2015). MSC: 60J10 15A69 15A18 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{S. Zhang}, Linear Algebra Appl. 473, 114--125 (2015; Zbl 1391.60176) Full Text: DOI arXiv
Hou, Jinchuan; Li, Chi-Kwong; Poon, Yiu-Tung; Qi, Xiaofei; Sze, Nung-Sing A new criterion and a special class of \(k\)-positive maps. (English) Zbl 1308.15024 Linear Algebra Appl. 470, 51-69 (2015). MSC: 15A69 15A60 15B57 46N50 PDFBibTeX XMLCite \textit{J. Hou} et al., Linear Algebra Appl. 470, 51--69 (2015; Zbl 1308.15024) Full Text: DOI arXiv
Li, Chi-Kwong; Tsai, Ming-Cheng; Wang, Kuo-Zhong; Wong, Ngai-Ching The spectrum of the product of operators, and the product of their numerical ranges. (English) Zbl 1339.47004 Linear Algebra Appl. 469, 487-499 (2015). Reviewer: Cristina Diogo (Lisboa) MSC: 47A10 47A12 15A60 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Linear Algebra Appl. 469, 487--499 (2015; Zbl 1339.47004) Full Text: DOI arXiv
Li, Chi-Kwong; Poon, Yiu-Tung; Wang, Xuefeng Ranks and eigenvalues of states with prescribed reduced states. (English) Zbl 1326.15016 Electron. J. Linear Algebra 27, 935-950 (2014). MSC: 15A18 15A60 15A42 15B48 46N50 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Electron. J. Linear Algebra 27, 935--950 (2014; Zbl 1326.15016) Full Text: arXiv
Li, Chi-Kwong; Sze, Nung-Sing Determinantal and eigenvalue inequalities for matrices with numerical ranges in a sector. (English) Zbl 1307.15029 J. Math. Anal. Appl. 410, No. 1, 487-491 (2014). MSC: 15A60 15A42 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{N.-S. Sze}, J. Math. Anal. Appl. 410, No. 1, 487--491 (2014; Zbl 1307.15029) Full Text: DOI arXiv
Fošner, Ajda; Huang, Zejun; Li, Chi-Kwong; Poon, Yiu-Tung; Sze, Nung-Sing Linear maps preserving the higher numerical ranges of tensor products of matrices. (English) Zbl 1319.15005 Linear Multilinear Algebra 62, No. 6, 776-791 (2014). Reviewer: Arnold Richard Kräuter (Leoben) MSC: 15A86 15A69 15A60 81P45 PDFBibTeX XMLCite \textit{A. Fošner} et al., Linear Multilinear Algebra 62, No. 6, 776--791 (2014; Zbl 1319.15005) Full Text: DOI arXiv
Cheung, Wai-Shun; Li, Chi-Kwong Maximizing the numerical radii of matrices by permuting their entries. (English) Zbl 1303.15025 Linear Multilinear Algebra 62, No. 5, 579-594 (2014). Reviewer: Maryam Khosravi (Kerman) MSC: 15A60 47A12 PDFBibTeX XMLCite \textit{W.-S. Cheung} and \textit{C.-K. Li}, Linear Multilinear Algebra 62, No. 5, 579--594 (2014; Zbl 1303.15025) Full Text: DOI
Huang, Li-Ping; Huang, Zejun; Li, Chi-Kwong; Sze, Nung-Sing Graphs associated with matrices over finite fields and their endomorphisms. (English) Zbl 1288.05158 Linear Algebra Appl. 447, 2-25 (2014). MSC: 05C50 15B33 05C69 05C60 05C45 PDFBibTeX XMLCite \textit{L.-P. Huang} et al., Linear Algebra Appl. 447, 2--25 (2014; Zbl 1288.05158) Full Text: DOI
Fošner, Ajda; Huang, Zejun; Li, Chi-Kwong; Sze, Nung-Sing Linear maps preserving numerical radius of tensor products of matrices. (English) Zbl 1309.15044 J. Math. Anal. Appl. 407, No. 2, 183-189 (2013). MSC: 15A86 15A60 15A69 PDFBibTeX XMLCite \textit{A. Fošner} et al., J. Math. Anal. Appl. 407, No. 2, 183--189 (2013; Zbl 1309.15044) Full Text: DOI arXiv
Li, Chi-Kwong; Poonl, Yiu-Tung; Sze, Nung-Sing Linear preservers of tensor product of unitary orbits, and product numerical range. (English) Zbl 1281.15030 Linear Algebra Appl. 438, No. 10, 3797-3803 (2013). MSC: 15A86 15A69 15A60 15B57 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Linear Algebra Appl. 438, No. 10, 3797--3803 (2013; Zbl 1281.15030) Full Text: DOI
Fošner, Ajda; Huang, Zejun; Li, Chi-Kwong; Sze, Nung-Sing Linear preservers and quantum information science. (English) Zbl 1290.15017 Linear Multilinear Algebra 61, No. 10, 1377-1390 (2013). Reviewer: Wai-Shun Cheung (Hong Kong) MSC: 15A86 15A69 15B57 15A18 81P45 PDFBibTeX XMLCite \textit{A. Fošner} et al., Linear Multilinear Algebra 61, No. 10, 1377--1390 (2013; Zbl 1290.15017) Full Text: DOI arXiv
Fonseca, Carlos (ed.); Furtado, Susana (ed.); Kovačec, Alexander (ed.); Li, Chi-Kwong (ed.) The Natália Bebiano anniversary volume. Special issue on the occasion of her 60th birthday. (English) Zbl 1278.00015 Textos de Matemática 44. Coimbra: Universidade de Coimbra, Departamento de Matemática (ISBN 978-972-8564-48-3/pbk). 158 p. (2013). MSC: 00B15 00B30 01A70 15-06 39-06 46-06 47-06 65-06 PDFBibTeX XMLCite \textit{C. Fonseca} (ed.) et al., The Natália Bebiano anniversary volume. Special issue on the occasion of her 60th birthday. Coimbra: Universidade de Coimbra, Departamento de Matemática (2013; Zbl 1278.00015)
Fošner, Ajda; Huang, Zejun; Li, Chi-Kwong; Sze, Nung-Sing Linear maps preserving Ky Fan norms and Schatten norms of tensor products of matrices. (English) Zbl 1273.15030 SIAM J. Matrix Anal. Appl. 34, No. 2, 673-685 (2013). MSC: 15A69 15A86 15A60 15A18 PDFBibTeX XMLCite \textit{A. Fošner} et al., SIAM J. Matrix Anal. Appl. 34, No. 2, 673--685 (2013; Zbl 1273.15030) Full Text: DOI arXiv Link
Cheung, Wai-Shun; Li, Chi-Kwong Elementary proofs for some results on the circular symmetry of the numerical range. (English) Zbl 1350.15012 Linear Multilinear Algebra 61, No. 5, 596-602 (2013). Reviewer: Costică Moroşanu (Iaşi) MSC: 15A60 PDFBibTeX XMLCite \textit{W.-S. Cheung} and \textit{C.-K. Li}, Linear Multilinear Algebra 61, No. 5, 596--602 (2013; Zbl 1350.15012) Full Text: DOI
Li, Chi-Kwong; Poon, Yiu-Tung; Sze, Nung-Sing Generalized interlacing inequalities. (English) Zbl 1253.15014 Linear Multilinear Algebra 60, No. 11-12, 1245-1254 (2012). Reviewer: Tin Yau Tam (Auburn) MSC: 15A18 15B57 15A60 15A42 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Linear Multilinear Algebra 60, No. 11--12, 1245--1254 (2012; Zbl 1253.15014) Full Text: DOI
Li, Chi-Kwong; Plevnik, Lucijan; Šemrl, Peter Preservers of matrix pairs with a fixed inner product value. (English) Zbl 1255.15033 Oper. Matrices 6, No. 3, 433-464 (2012). Reviewer: Wai-Shun Cheung (Hong Kong) MSC: 15A86 15B57 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Oper. Matrices 6, No. 3, 433--464 (2012; Zbl 1255.15033) Full Text: DOI
Li, Chi-Kwong; Poon, Edward Maps preserving the joint numerical radius distance of operators. (English) Zbl 1275.47013 Linear Algebra Appl. 437, No. 5, 1194-1204 (2012). MSC: 47A12 47A13 15A60 15A86 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{E. Poon}, Linear Algebra Appl. 437, No. 5, 1194--1204 (2012; Zbl 1275.47013) Full Text: DOI
Choi, Man-Duen; Huang, Zejun; Li, Chi-Kwong; Sze, Nung-Sing Every invertible matrix is diagonally equivalent to a matrix with distinct eigenvalues. (English) Zbl 1244.15006 Linear Algebra Appl. 436, No. 9, 3773-3776 (2012). Reviewer: Erik Darpö (Oxford) MSC: 15A21 15A18 PDFBibTeX XMLCite \textit{M.-D. Choi} et al., Linear Algebra Appl. 436, No. 9, 3773--3776 (2012; Zbl 1244.15006) Full Text: DOI
Chau, H. F.; Li, Chi-Kwong; Poon, Yiu-Tung; Sze, Nung-Sing Induced metric and matrix inequalities on unitary matrices. (English) Zbl 1239.81032 J. Phys. A, Math. Theor. 45, No. 9, Article ID 095201, 8 p. (2012). MSC: 81P45 15A60 PDFBibTeX XMLCite \textit{H. F. Chau} et al., J. Phys. A, Math. Theor. 45, No. 9, Article ID 095201, 8 p. (2012; Zbl 1239.81032) Full Text: DOI arXiv
Cui, Jianlian; Forstall, Virginia; Li, Chi-Kwong; Yannello, Vincent Properties and preservers of the pseudospectrum. (English) Zbl 1245.15028 Linear Algebra Appl. 436, No. 2, 316-325 (2012). Reviewer: Alexander Guterman (Moskva) MSC: 15A86 15A18 15A60 15B57 15B48 PDFBibTeX XMLCite \textit{J. Cui} et al., Linear Algebra Appl. 436, No. 2, 316--325 (2012; Zbl 1245.15028) Full Text: DOI Link
Friedland, Shmuel; Li, Chi-Kwong; Poon, Yiu-Tung; Sze, Nung-Sing The automorphism group of separable states in quantum information theory. (English) Zbl 1316.81014 J. Math. Phys. 52, No. 4, 042203, 8 p. (2011). MSC: 81P45 81P40 15B57 PDFBibTeX XMLCite \textit{S. Friedland} et al., J. Math. Phys. 52, No. 4, 042203, 8 p. (2011; Zbl 1316.81014) Full Text: DOI arXiv
Kuzma, Bojan; Lesnjak, Gorazd; Li, Chi-Kwong; Petek, Tatjana; Rodman, Leiba Norm preservers of Jordan products. (English) Zbl 1254.15030 Electron. J. Linear Algebra 22, 959-978 (2011). MSC: 15A86 15A60 15A30 PDFBibTeX XMLCite \textit{B. Kuzma} et al., Electron. J. Linear Algebra 22, 959--978 (2011; Zbl 1254.15030) Full Text: EMIS
Albert, Chase; Li, Chi-Kwong; Strang, Gilbert; Yu, Gexin Permutations as product of parallel transpositions. (English) Zbl 1237.05002 SIAM J. Discrete Math. 25, No. 3, 1412-1417 (2011). MSC: 05A05 20B99 15A23 65T50 PDFBibTeX XMLCite \textit{C. Albert} et al., SIAM J. Discrete Math. 25, No. 3, 1412--1417 (2011; Zbl 1237.05002) Full Text: DOI Link
Li, Chi-Kwong; Poon, Yiu-Tung Generalized numerical ranges and quantum error correction. (English) Zbl 1261.47012 J. Oper. Theory 66, No. 2, 335-351 (2011). MSC: 47A12 15A60 81P68 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{Y.-T. Poon}, J. Oper. Theory 66, No. 2, 335--351 (2011; Zbl 1261.47012) Full Text: arXiv
Li, Chi-Kwong; Poon, Yiu-Tung Interpolation by completely positive maps. (English) Zbl 1236.15004 Linear Multilinear Algebra 59, No. 10, 1159-1170 (2011). Reviewer: Ali Reza Moghaddamfar (Tehran) MSC: 15A04 15B48 15A42 81P45 15A86 37C27 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{Y.-T. Poon}, Linear Multilinear Algebra 59, No. 10, 1159--1170 (2011; Zbl 1236.15004) Full Text: DOI arXiv
Li, Chi-Kwong; Poon, Yiu-Tung; Tominaga, Masaru Spectra, norms and numerical ranges of generalized quadratic operators. (English) Zbl 1236.47006 Linear Multilinear Algebra 59, No. 10, 1077-1104 (2011). Reviewer: Janko Bračič (Ljubljana) MSC: 47A12 15A60 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Linear Multilinear Algebra 59, No. 10, 1077--1104 (2011; Zbl 1236.47006) Full Text: DOI
Li, Chi-Kwong; Poon, Yiu-Tung; Sze, Nung-Sing Elliptical range theorems for generalized numerical ranges of quadratic operators. (English) Zbl 1231.47003 Rocky Mt. J. Math. 41, No. 3, 813-832 (2011). Reviewer: Pei Yuan Wu (Hsinchu) MSC: 47A12 15A60 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Rocky Mt. J. Math. 41, No. 3, 813--832 (2011; Zbl 1231.47003) Full Text: DOI arXiv
Li, Chi-Kwong; Poon, Yiu-Tung; Schulte-Herbrüggen, Thomas Least-squares approximation by elements from matrix orbits achieved by gradient flows on compact Lie groups. (English) Zbl 1228.65059 Math. Comput. 80, No. 275, 1601-1621 (2011). Reviewer: Tzvetan Semerdjiev (Sofia) MSC: 65F20 15A60 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Math. Comput. 80, No. 275, 1601--1621 (2011; Zbl 1228.65059) Full Text: DOI arXiv
Gau, Hwa-Long; Li, Chi-Kwong; Poon, Yiu-Tung; Sze, Nung-Sing Higher rank numerical ranges of normal matrices. (English) Zbl 1223.15032 SIAM J. Matrix Anal. Appl. 32, No. 1, 23-43 (2011). Reviewer: Wai-Shun Cheung (Hong Kong) MSC: 15A60 47N50 81P68 15B57 PDFBibTeX XMLCite \textit{H.-L. Gau} et al., SIAM J. Matrix Anal. Appl. 32, No. 1, 23--43 (2011; Zbl 1223.15032) Full Text: DOI arXiv
Forstall, Virginia; Herman, Aaron; Li, Chi-Kwong; Sze, Nung-Sing; Yannello, Vincent Preservers of eigenvalue inclusion sets of matrix products. (English) Zbl 1208.15022 Linear Algebra Appl. 434, No. 1, 285-293 (2011). Reviewer: Bojan Kuzma (Ljubljana) MSC: 15A86 15A42 PDFBibTeX XMLCite \textit{V. Forstall} et al., Linear Algebra Appl. 434, No. 1, 285--293 (2011; Zbl 1208.15022) Full Text: DOI Link
Li, Chi-Kwong; Milligan, Thomas; Trosset, Michael W. Euclidean and circum-Euclidean distance matrices: characterizations and linear preservers. (English) Zbl 1211.51006 Electron. J. Linear Algebra 20, 739-752 (2010). Reviewer: Shing So (Warrensburg) MSC: 51K05 15B57 15B48 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Electron. J. Linear Algebra 20, 739--752 (2010; Zbl 1211.51006) Full Text: DOI EuDML EMIS
Li, Chi-Kwong A note on the unitary part of a contraction. (English) Zbl 1202.15008 Linear Algebra Appl. 433, No. 8-10, 1533-1535 (2010). Reviewer: Rodica Covaci (Cluj-Napoca) MSC: 15A04 15A42 15A45 PDFBibTeX XMLCite \textit{C.-K. Li}, Linear Algebra Appl. 433, No. 8--10, 1533--1535 (2010; Zbl 1202.15008) Full Text: DOI
Hartman, Jim; Herman, Aaron; Li, Chi-Kwong Preservers of eigenvalue inclusion sets. (English) Zbl 1232.15021 Linear Algebra Appl. 433, No. 5, 1038-1051 (2010). MSC: 15A86 15A42 PDFBibTeX XMLCite \textit{J. Hartman} et al., Linear Algebra Appl. 433, No. 5, 1038--1051 (2010; Zbl 1232.15021) Full Text: DOI
Crowder, Tanner; Li, Chi-Kwong Studying genetic code by a matrix approach. (English) Zbl 1193.92037 Bull. Math. Biol. 72, No. 4, 953-972 (2010). MSC: 92C40 15B99 92D10 PDFBibTeX XMLCite \textit{T. Crowder} and \textit{C.-K. Li}, Bull. Math. Biol. 72, No. 4, 953--972 (2010; Zbl 1193.92037) Full Text: DOI
Ando, Tsuyoshi; Li, Chi-Kwong Operator radii and unitary operators. (English) Zbl 1219.47012 Oper. Matrices 4, No. 2, 273-281 (2010). Reviewer: Cătălin Badea (Villeneuve d’Ascq) MSC: 47A12 47A20 15A60 PDFBibTeX XMLCite \textit{T. Ando} and \textit{C.-K. Li}, Oper. Matrices 4, No. 2, 273--281 (2010; Zbl 1219.47012) Full Text: DOI Link
Clark, Sean; Li, Chi-Kwong; Sze, Nung-Sing Multiplicative maps preserving the higher rank numerical ranges and radii. (English) Zbl 1193.15025 Linear Algebra Appl. 432, No. 11, 2729-2738 (2010). Reviewer: Bojan Kuzma (Ljubljana) MSC: 15A86 15A60 47A12 81P45 81P70 PDFBibTeX XMLCite \textit{S. Clark} et al., Linear Algebra Appl. 432, No. 11, 2729--2738 (2010; Zbl 1193.15025) Full Text: DOI
Gau, Hwa-Long; Li, Chi-Kwong; Wu, Pei Yuan Higher-rank numerical ranges and dilations. (English) Zbl 1212.15022 J. Oper. Theory 63, No. 1, 181-189 (2010). Reviewer: Mihail M. Konstantinov (Sofia) MSC: 15A21 15A60 PDFBibTeX XMLCite \textit{H.-L. Gau} et al., J. Oper. Theory 63, No. 1, 181--189 (2010; Zbl 1212.15022)
Li, Chi-Kwong; Poon, Yiu-Tung Sum of Hermitian matrices with given eigenvalues: inertia, rank, and multiple eigenvalues. (English) Zbl 1188.15039 Can. J. Math. 62, No. 1, 109-132 (2010). Reviewer: Juan Ramon Torregrosa Sanchez (Valencia) MSC: 15B57 15A03 15A42 15A18 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{Y.-T. Poon}, Can. J. Math. 62, No. 1, 109--132 (2010; Zbl 1188.15039) Full Text: DOI
Li, Chi-Kwong; Poon, Yiu-Tung The sum of unitary similarity orbits containing only special operators. (English) Zbl 1175.47020 Linear Algebra Appl. 431, No. 12, 2336-2345 (2009). MSC: 47B15 15B48 15B57 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{Y.-T. Poon}, Linear Algebra Appl. 431, No. 12, 2336--2345 (2009; Zbl 1175.47020) Full Text: DOI Link
Li, Chi-Kwong; Poon, Edward; Sze, Nung-Sing Preservers for norms of Lie product. (English) Zbl 1181.15031 Oper. Matrices 3, No. 2, Article ID 10, 187-203 (2009). Reviewer: Wu Jing (Fayetteville) MSC: 15A60 15A86 46B04 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Oper. Matrices 3, No. 2, Article ID 10, 187--203 (2009; Zbl 1181.15031) Full Text: Link
Clark, Sean; Li, Chi-Kwong; Mahle, Jennifer; Rodman, Leiba Linear preservers of higher rank numerical ranges and radii. (English) Zbl 1200.15012 Linear Multilinear Algebra 57, No. 5, 503-521 (2009). Reviewer: Wai-Shun Cheung (Hong Kong) MSC: 15A86 15A60 47A12 PDFBibTeX XMLCite \textit{S. Clark} et al., Linear Multilinear Algebra 57, No. 5, 503--521 (2009; Zbl 1200.15012) Full Text: DOI
Li, Chi-Kwong; Poon, Yiu-Tung; Sze, Nung-Sing Condition for the higher rank numerical range to be non-empty. (English) Zbl 1172.15014 Linear Multilinear Algebra 57, No. 4, 365-368 (2009). Reviewer: John D. Dixon (Ottawa) MSC: 15A60 15A21 47A12 81P68 15A42 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Linear Multilinear Algebra 57, No. 4, 365--368 (2009; Zbl 1172.15014) Full Text: DOI arXiv
Li, Chi-Kwong; Rodman, Leiba Preservers of spectral radius, numerical radius, or spectral norm of the sum on nonnegative matrices. (English) Zbl 1172.15003 Linear Algebra Appl. 430, No. 7, 1739-1761 (2009). Reviewer: Ali-Akbar Jafarian (West Haven) MSC: 15A04 15B48 15A60 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{L. Rodman}, Linear Algebra Appl. 430, No. 7, 1739--1761 (2009; Zbl 1172.15003) Full Text: DOI
Li, Chi-Kwong; Poon, Yiu-Tung; Sze, Nung-Sing Eigenvalues of the sum of matrices from unitary similarity orbits. (English) Zbl 1167.15008 SIAM J. Matrix Anal. Appl. 30, No. 2, 560-581 (2008). Reviewer: Adhemar Bultheel (Leuven) MSC: 15A18 15A21 65F30 15B57 PDFBibTeX XMLCite \textit{C.-K. Li} et al., SIAM J. Matrix Anal. Appl. 30, No. 2, 560--581 (2008; Zbl 1167.15008) Full Text: DOI Link
Clark, Sean; Li, Chi-Kwong; Rodman, Leiba Spectral radius preservers of products of monnegative matrices. (English) Zbl 1158.15002 Banach J. Math. Anal. 2, No. 2, 107-120 (2008). Reviewer: C. M. da Fonseca (Coimbra) MSC: 15A04 15A18 15B48 PDFBibTeX XMLCite \textit{S. Clark} et al., Banach J. Math. Anal. 2, No. 2, 107--120 (2008; Zbl 1158.15002) Full Text: DOI EuDML EMIS
Li, Chi-Kwong; Sze, Nung-Sing Canonical forms, higher rank numerical ranges, totally isotropic subspaces, and matrix equations. (English) Zbl 1152.15027 Proc. Am. Math. Soc. 136, No. 9, 3013-3023 (2008). Reviewer: Adhemar Bultheel (Leuven) MSC: 15A60 15A21 15A24 15A90 81P68 PDFBibTeX XMLCite \textit{C.-K. Li} and \textit{N.-S. Sze}, Proc. Am. Math. Soc. 136, No. 9, 3013--3023 (2008; Zbl 1152.15027) Full Text: DOI arXiv
Clark, Sean; Li, Chi-Kwong; Rastogi, Ashwin Schur multiplicative maps on matrices. (English) Zbl 1147.15001 Bull. Aust. Math. Soc. 77, No. 1, 49-72 (2008). Reviewer: Rodica Covaci (Cluj-Napoca) MSC: 15A04 15A03 15A15 15A09 PDFBibTeX XMLCite \textit{S. Clark} et al., Bull. Aust. Math. Soc. 77, No. 1, 49--72 (2008; Zbl 1147.15001) Full Text: DOI
Li, Chi-Kwong; Poon, Yiu-Tung; Sze, Nung-Sing Ranks and determinants of the sum of matrices from unitary orbits. (English) Zbl 1137.15002 Linear Multilinear Algebra 56, No. 1-2, 105-130 (2008). Reviewer: Grozio Stanilov (Sofia) MSC: 15A03 15A15 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Linear Multilinear Algebra 56, No. 1--2, 105--130 (2008; Zbl 1137.15002) Full Text: DOI
Davis, Chandler; Li, Chi-Kwong; Salemi, Abbas Polynomial numerical hulls of matrices. (English) Zbl 1130.15017 Linear Algebra Appl. 428, No. 1, 137-153 (2008). Reviewer: Mohammad Sal Moslehian (Mashhad) MSC: 15A60 15A18 PDFBibTeX XMLCite \textit{C. Davis} et al., Linear Algebra Appl. 428, No. 1, 137--153 (2008; Zbl 1130.15017) Full Text: DOI
Li, Chi-Kwong; Poon, Edward; Rastogi, Ashwin Maps preserving spectral radius, numerical radius, spectral norm. (English) Zbl 1157.15002 Electron. J. Linear Algebra 16, 347-365 (2007). Reviewer: Bojan Kuzma (Ljubljana) MSC: 15A04 15A18 15A60 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Electron. J. Linear Algebra 16, 347--365 (2007; Zbl 1157.15002) Full Text: DOI EuDML
Li, Chi-Kwong; Li, Ren-Cang; Ye, Qiang Eigenvalues of an alignment matrix in nonlinear manifold learning. (English) Zbl 1135.65019 Commun. Math. Sci. 5, No. 2, 313-329 (2007). MSC: 65F15 15A42 PDFBibTeX XMLCite \textit{C.-K. Li} et al., Commun. Math. Sci. 5, No. 2, 313--329 (2007; Zbl 1135.65019) Full Text: DOI Euclid