Struzhanov, Valeriĭ Vladimirovich Integro-differential equations of the second boundary value problem of linear elasticity theory. II: Inhomogeneous anisotropic body. (Russian. English summary) Zbl 07294535 Vestn. Samar. Gos. Tekh. Univ., Ser. Fiz.-Mat. Nauki 24, No. 1, 199-208 (2020). MSC: 74C10 PDF BibTeX XML Cite \textit{V. V. Struzhanov}, Vestn. Samar. Gos. Tekh. Univ., Ser. Fiz.-Mat. Nauki 24, No. 1, 199--208 (2020; Zbl 07294535) Full Text: DOI MNR
Belabbaci, C. Spectral radius of S-essential spectra. (English) Zbl 07286281 Mat. Stud. 54, No. 1, 91-97 (2020). MSC: 47A10 47A13 47A53 47H08 PDF BibTeX XML Cite \textit{C. Belabbaci}, Mat. Stud. 54, No. 1, 91--97 (2020; Zbl 07286281) Full Text: DOI
Feki, Kais On tuples of commuting operators in positive semidefinite inner product spaces. (English) Zbl 07241734 Linear Algebra Appl. 603, 313-328 (2020). MSC: 47A13 47A05 47A12 46C05 PDF BibTeX XML Cite \textit{K. Feki}, Linear Algebra Appl. 603, 313--328 (2020; Zbl 07241734) Full Text: DOI
Kula, Anna; Wysoczański, Janusz Joint monotone and Boolean numerical and spectral radii of \(d\)-tuples of operators. (English) Zbl 07225067 Adv. Oper. Theory 5, No. 3, 1039-1060 (2020). MSC: 46L53 47A12 47A13 PDF BibTeX XML Cite \textit{A. Kula} and \textit{J. Wysoczański}, Adv. Oper. Theory 5, No. 3, 1039--1060 (2020; Zbl 07225067) Full Text: DOI
Benjamin, Ronalda; Mouton, Sonja \(r\)-Fredholm theory in ordered Banach algebras. (English) Zbl 07193702 Positivity 24, No. 2, 373-393 (2020). MSC: 46H05 47A10 47A53 PDF BibTeX XML Cite \textit{R. Benjamin} and \textit{S. Mouton}, Positivity 24, No. 2, 373--393 (2020; Zbl 07193702) Full Text: DOI
Ammar, Aymen; Jeribi, Aref; Mahfoudhi, Kamel The condition pseudospectrum subset and related results. (English) Zbl 1444.47021 J. Pseudo-Differ. Oper. Appl. 11, No. 1, 491-504 (2020). Reviewer: Alexei Yu. Karlovich (Lisboa) MSC: 47A53 47A55 54B35 47A12 47B01 PDF BibTeX XML Cite \textit{A. Ammar} et al., J. Pseudo-Differ. Oper. Appl. 11, No. 1, 491--504 (2020; Zbl 1444.47021) Full Text: DOI
Baklouti, Hamadi; Feki, Kais; Ould Ahmed Mahmoud, Sid Ahmed Joint normality of operators in semi-Hilbertian spaces. (English) Zbl 07178188 Linear Multilinear Algebra 68, No. 4, 845-866 (2020). MSC: 47B15 47A13 46C50 47A05 47A15 PDF BibTeX XML Cite \textit{H. Baklouti} et al., Linear Multilinear Algebra 68, No. 4, 845--866 (2020; Zbl 07178188) Full Text: DOI
Kubrusly, Carlos S. Spectral theory of bounded linear operators. (English) Zbl 07170310 Cham: Birkhäuser (ISBN 978-3-030-33148-1/hbk; 978-3-030-33151-1/pbk; 978-3-030-33149-8/ebook). xii, 249 p. (2020). Reviewer: Bilel Krichen (Sfax) MSC: 47-01 47A10 47A12 47A16 47A25 47A53 47A60 47B15 47B20 47B48 47C05 PDF BibTeX XML Cite \textit{C. S. Kubrusly}, Spectral theory of bounded linear operators. Cham: Birkhäuser (2020; Zbl 07170310) Full Text: DOI
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 PDF BibTeX XML Cite \textit{S. Botelho-Andrade} and \textit{C.-K. Li}, Contemp. Math. 737, 25--42 (2019; Zbl 1435.47011) Full Text: DOI
Li, Chi-kwong; Paulsen, Vern I.; Poon, Yiu-tung Preservation of the joint essential matricial range. (English) Zbl 07142409 Bull. Lond. Math. Soc. 51, No. 5, 868-876 (2019). MSC: 47A12 47A13 47A20 PDF BibTeX XML Cite \textit{C.-k. Li} et al., Bull. Lond. Math. Soc. 51, No. 5, 868--876 (2019; Zbl 07142409) Full Text: DOI arXiv
Benjamin, Ronalda; Laustsen, Niels Jakob; Mouton, Sonja \(r\)-Fredholm theory in Banach algebras. (English) Zbl 1431.46030 Glasg. Math. J. 61, No. 3, 615-627 (2019). Reviewer: Andrzej Sołtysiak (Poznań) MSC: 46H30 47A10 47A53 PDF BibTeX XML Cite \textit{R. Benjamin} et al., Glasg. Math. J. 61, No. 3, 615--627 (2019; Zbl 1431.46030) Full Text: DOI
Baklouti, Hamadi; Feki, Kais On joint spectral radius of commuting operators in Hilbert spaces. (English) Zbl 06946348 Linear Algebra Appl. 557, 455-463 (2018). MSC: 47A13 47A16 47B38 PDF BibTeX XML Cite \textit{H. Baklouti} and \textit{K. Feki}, Linear Algebra Appl. 557, 455--463 (2018; Zbl 06946348) Full Text: DOI
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 PDF BibTeX XML Cite \textit{P.-S. Lau} et al., J. Funct. Anal. 275, No. 9, 2497--2515 (2018; Zbl 06933546) Full Text: DOI arXiv
Bickel, Kelly; Gorkin, Pamela Compressions of the shift on the bidisk and their numerical ranges. (English) Zbl 1399.47029 J. Oper. Theory 79, No. 1, 225-265 (2018). Reviewer: Cătălin Badea (Villeneuve d’Ascq) MSC: 47A12 47A13 30C15 PDF BibTeX XML Cite \textit{K. Bickel} and \textit{P. Gorkin}, J. Oper. Theory 79, No. 1, 225--265 (2018; Zbl 1399.47029) Full Text: DOI arXiv
Outouzzalt, Hassan Linear essential spectrum compressors. (English) Zbl 06816239 Eur. J. Pure Appl. Math. 10, No. 5, 1058-1066 (2017). MSC: 47B49 47A10 PDF BibTeX XML Cite \textit{H. Outouzzalt}, Eur. J. Pure Appl. Math. 10, No. 5, 1058--1066 (2017; Zbl 06816239) Full Text: Link
Chabbabi, Fadil; Mbekhta, Mostafa New formulas for the spectral radius via \(\lambda\)-Aluthge transform. (English) Zbl 06668952 Linear Algebra Appl. 515, 246-254 (2017). MSC: 47A13 47A30 47B37 PDF BibTeX XML Cite \textit{F. Chabbabi} and \textit{M. Mbekhta}, Linear Algebra Appl. 515, 246--254 (2017; Zbl 06668952) Full Text: DOI
Nussbaum, Roger D. \(C^m\) positive eigenvectors for linear operators arising in the computation of Hausdorff dimension. (English) Zbl 1341.47013 Integral Equations Oper. Theory 84, No. 3, 357-393 (2016). MSC: 47A53 47A75 47B65 28A78 46E15 PDF BibTeX XML Cite \textit{R. D. Nussbaum}, Integral Equations Oper. Theory 84, No. 3, 357--393 (2016; Zbl 1341.47013) Full Text: DOI
Bourhim, Abdellatif; Mashreghi, Javad A survey on preservers of spectra and local spectra. (English) Zbl 1353.47070 Mashreghi, Javad (ed.) et al., Invariant subspaces of the shift operator. CRM workshop, Centre de Recherches Mathématiques, Université de Montréal, Montréal, Canada, August 26–30, 2013. Providence, RI: American Mathematical Society (AMS) (ISBN 978-1-4704-1045-2/pbk; 978-1-4704-2341-4/ebook). Contemporary Mathematics 638. Centre de Recherches Mathématiques Proceedings., 45-98 (2015). MSC: 47B49 47-02 47B48 47A10 47A25 47A53 47A55 47A65 46L10 PDF BibTeX XML Cite \textit{A. Bourhim} and \textit{J. Mashreghi}, Contemp. Math. 638, 45--98 (2015; Zbl 1353.47070) Full Text: DOI
Sarkar, Jaydeb Operator theory on symmetrized bidisc. (English) Zbl 1330.47016 Indiana Univ. Math. J. 64, No. 3, 847-873 (2015). Reviewer: Orr Moshe Shalit (Haifa) MSC: 47A13 47A15 47A20 47A25 47A45 47B32 47A12 46E22 PDF BibTeX XML Cite \textit{J. Sarkar}, Indiana Univ. Math. J. 64, No. 3, 847--873 (2015; Zbl 1330.47016) Full Text: DOI Link arXiv
Bendaoud, M.; Jabbar, M.; Sarih, M. Preservers of local spectra of operator products. (English) Zbl 1309.47042 Linear Multilinear Algebra 63, No. 4, 806-819 (2015). MSC: 47B49 47A10 47A53 PDF BibTeX XML Cite \textit{M. Bendaoud} et al., Linear Multilinear Algebra 63, No. 4, 806--819 (2015; Zbl 1309.47042) Full Text: DOI
Chahbi, Abdellatif; Kabbaj, Samir Linear maps preserving essentially numerical range and essentially unitary operator. (English) Zbl 1354.47025 Asia Pac. J. Math. 1, No. 2, 116-126 (2014). MSC: 47B49 47A10 47A53 PDF BibTeX XML Cite \textit{A. Chahbi} and \textit{S. Kabbaj}, Asia Pac. J. Math. 1, No. 2, 116--126 (2014; Zbl 1354.47025) Full Text: Link
Bendaoud, M.; Sarih, M. Additive maps preserving the inner local spectral radius. (English) Zbl 1335.47022 Cepedello Boiso, Manuel (ed.) et al., Concrete operators, spectral theory, operators in harmonic analysis and approximation. 22nd international workshop in operator theory and its applications, IWOTA 11, Sevilla, Spain, July 3–9, 2011. Basel: Birkhäuser/Springer (ISBN 978-3-0348-0647-3/hbk; 978-3-0348-0648-0/ebook). Operator Theory: Advances and Applications 236, 95-102 (2014). Reviewer: Jerónimo Alaminos (Granada) MSC: 47B49 47A10 47A53 PDF BibTeX XML Cite \textit{M. Bendaoud} and \textit{M. Sarih}, Oper. Theory: Adv. Appl. 236, 95--102 (2014; Zbl 1335.47022) Full Text: DOI
Bhattacharyya, Tirthankar The tetrablock as a spectral set. (English) Zbl 1312.47014 Indiana Univ. Math. J. 63, No. 6, 1601-1629 (2014). Reviewer: Bilender P. Allahverdiev (Isparta) MSC: 47A20 47A12 47A13 47A25 47A10 PDF BibTeX XML Cite \textit{T. Bhattacharyya}, Indiana Univ. Math. J. 63, No. 6, 1601--1629 (2014; Zbl 1312.47014) Full Text: DOI Link arXiv
Drnovšek, Roman; Müller, Vladimir On joint numerical radius. II. (English) Zbl 1304.47006 Linear Multilinear Algebra 62, No. 9, 1197-1204 (2014). Reviewer: Andrzej Sołtysiak (Poznań) MSC: 47A12 47A13 PDF BibTeX XML Cite \textit{R. Drnovšek} and \textit{V. Müller}, Linear Multilinear Algebra 62, No. 9, 1197--1204 (2014; Zbl 1304.47006) Full Text: DOI
Müller, Vladimir On joint numerical radius. (English) Zbl 1301.47006 Proc. Am. Math. Soc. 142, No. 4, 1371-1380 (2014). Reviewer: Andrzej Sołtysiak (Poznań) MSC: 47A12 47A13 PDF BibTeX XML Cite \textit{V. Müller}, Proc. Am. Math. Soc. 142, No. 4, 1371--1380 (2014; Zbl 1301.47006) Full Text: DOI
Müller, Vladimir Universal \(n\)-tuples of operators. (English) Zbl 06264605 Math. Proc. R. Ir. Acad. 113A, No. 2, 143-150 (2013). MSC: 47A12 47A13 PDF BibTeX XML Cite \textit{V. Müller}, Math. Proc. R. Ir. Acad. 113A, No. 2, 143--150 (2013; Zbl 06264605) Full Text: DOI
Nzimbi, B. M.; Pokhariyal, G. P.; Moindi, S. K. A note on metric equivalence of some operators. (English) Zbl 1273.47004 Far East J. Math. Sci. (FJMS) 75, No. 2, 301-318 (2013). MSC: 47A05 47A11 47A53 47A65 PDF BibTeX XML Cite \textit{B. M. Nzimbi} et al., Far East J. Math. Sci. (FJMS) 75, No. 2, 301--318 (2013; Zbl 1273.47004) Full Text: Link
Bendaoud, Mohamed Preservers of local spectra of matrix sums. (English) Zbl 1282.47054 Linear Algebra Appl. 438, No. 5, 2500-2507 (2013). Reviewer: Abdellatif Bourhim (Syracuse) MSC: 47B49 47A10 47A11 47A53 PDF BibTeX XML Cite \textit{M. Bendaoud}, Linear Algebra Appl. 438, No. 5, 2500--2507 (2013; Zbl 1282.47054) 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 PDF BibTeX XML Cite \textit{C.-K. Li} and \textit{E. Poon}, Linear Algebra Appl. 437, No. 5, 1194--1204 (2012; Zbl 1275.47013) Full Text: DOI
Rashid, Mohammad Hussein Mohammad; Noorani, Mohd Salmi Mohd Weyl’s type theorems for algebraically \((p,k)\)-quasihyponormal operators. (English) Zbl 1276.47029 Commun. Korean Math. Soc. 27, No. 1, 77-95 (2012). Reviewer: Eungil Ko (Seoul) MSC: 47B20 47A10 47A12 47A55 PDF BibTeX XML Cite \textit{M. H. M. Rashid} and \textit{M. S. M. Noorani}, Commun. Korean Math. Soc. 27, No. 1, 77--95 (2012; Zbl 1276.47029) Full Text: DOI
Morris, Ian D. The generalised Berger-Wang formula and the spectral radius of linear cocycles. (English) Zbl 1254.47006 J. Funct. Anal. 262, No. 3, 811-824 (2012). Reviewer: Andrzej Sołtysiak (Poznań) MSC: 47A13 47A35 47H08 PDF BibTeX XML Cite \textit{I. D. Morris}, J. Funct. Anal. 262, No. 3, 811--824 (2012; Zbl 1254.47006) Full Text: DOI
Zeng, Qingping; Zhong, Huaijie; Wu, Zhenying Small essential spectral radius perturbations of operators with topological uniform descent. (English) Zbl 1238.47009 Bull. Aust. Math. Soc. 85, No. 1, 26-45 (2012). Reviewer: Janko Bračič (Ljubljana) MSC: 47A53 47A55 PDF BibTeX XML Cite \textit{Q. Zeng} et al., Bull. Aust. Math. Soc. 85, No. 1, 26--45 (2012; Zbl 1238.47009) Full Text: DOI
Bendaoud, M.; Sarih, M. Additive local spectrum compressors. (English) Zbl 1231.47031 Linear Algebra Appl. 435, No. 6, 1473-1478 (2011). MSC: 47B49 47A10 47A53 PDF BibTeX XML Cite \textit{M. Bendaoud} and \textit{M. Sarih}, Linear Algebra Appl. 435, No. 6, 1473--1478 (2011; Zbl 1231.47031) Full Text: DOI
Bendaoud, M.; Sarih, M. Locally spectrally bounded linear maps. (English) Zbl 1216.47066 Math. Bohem. 136, No. 1, 81-89 (2011). MSC: 47B49 47A10 47A53 PDF BibTeX XML Cite \textit{M. Bendaoud} and \textit{M. Sarih}, Math. Bohem. 136, No. 1, 81--89 (2011; Zbl 1216.47066) Full Text: EMIS EuDML
Bornemann, Folkmar Accuracy and stability of computing high-order derivatives of analytic functions by Cauchy integrals. (English) Zbl 1213.65039 Found. Comput. Math. 11, No. 1, 1-63 (2011). Reviewer: Andrei Martínez Finkelshtein (Almeria) MSC: 65D25 65G50 30D15 65E05 30E20 PDF BibTeX XML Cite \textit{F. Bornemann}, Found. Comput. Math. 11, No. 1, 1--63 (2011; Zbl 1213.65039) Full Text: DOI arXiv
Skhiri, Haïkel Topological divisor of zero perturbation functions. (English) Zbl 1211.46046 J. Pure Appl. Math., Adv. Appl. 4, No. 1, 97-114 (2010). MSC: 46H05 46H20 47A30 47A53 PDF BibTeX XML Cite \textit{H. Skhiri}, J. Pure Appl. Math., Adv. Appl. 4, No. 1, 97--114 (2010; Zbl 1211.46046) Full Text: Link
Castro, L. P.; Silva, A. S. Fredholm property of matrix Wiener-Hopf plus and minus Hankel operators with semi-almost periodic symbols. (English) Zbl 1217.47059 Cubo 12, No. 2, 217-234 (2010). MSC: 47B35 47A05 47A12 47A20 42A75 PDF BibTeX XML Cite \textit{L. P. Castro} and \textit{A. S. Silva}, Cubo 12, No. 2, 217--234 (2010; Zbl 1217.47059) Full Text: DOI
Müller, Vladimír The joint essential numerical range, compact perturbations, and the Olsen problem. (English) Zbl 1193.47007 Stud. Math. 197, No. 3, 275-290 (2010). Reviewer: Pei Yuan Wu (Hsinchu) MSC: 47A12 47A13 PDF BibTeX XML Cite \textit{V. Müller}, Stud. Math. 197, No. 3, 275--290 (2010; Zbl 1193.47007) Full Text: DOI
Anderson, Greg W.; Guionnet, Alice; Zeitouni, Ofer An introduction to random matrices. (English) Zbl 1184.15023 Cambridge Studies in Advanced Mathematics 118. Cambridge: Cambridge University Press (ISBN 978-0-521-19452-5/hbk). xiv, 492 p. (2010). Reviewer: Václav Burjan (Praha) MSC: 15-01 15B52 15A18 60B20 PDF BibTeX XML Cite \textit{G. W. Anderson} et al., An introduction to random matrices. Cambridge: Cambridge University Press (2010; Zbl 1184.15023) Backlinks: MO
Popescu, Gelu Hyperbolic geometry on noncommutative balls. (English) Zbl 1186.47004 Doc. Math. 14, 595-651 (2009). MSC: 47A13 46L52 46T25 47A20 32Q45 47A56 PDF BibTeX XML Cite \textit{G. Popescu}, Doc. Math. 14, 595--651 (2009; Zbl 1186.47004) Full Text: EMIS EuDML arXiv
Li, Chi-Kwong; Poon, Yiu-Tung The joint essential numerical range of operators: convexity and related results. (English) Zbl 1178.47001 Stud. Math. 194, No. 1, 91-104 (2009). Reviewer: Pei Yuan Wu (Hsinchu) MSC: 47A12 47A13 47A55 PDF BibTeX XML Cite \textit{C.-K. Li} and \textit{Y.-T. Poon}, Stud. Math. 194, No. 1, 91--104 (2009; Zbl 1178.47001) Full Text: DOI
Popescu, Gelu Unitary invariants in multivariable operator theory. (English) Zbl 1180.47010 Mem. Am. Math. Soc. 941, 91 p. (2009). Reviewer: Bebe Prunaru (Bucureşti) MSC: 47A13 47A30 47A12 47A56 47A63 47-02 PDF BibTeX XML Cite \textit{G. Popescu}, Unitary invariants in multivariable operator theory. Providence, RI: American Mathematical Society (AMS) (2009; Zbl 1180.47010) Full Text: DOI arXiv
Bhouri, Imen; Skhiri, Haïkel On the approximation numbers and spectral eigenvalues. (English) Zbl 1151.47028 Linear Algebra Appl. 430, No. 2-3, 847-854 (2009). MSC: 47B06 47A58 47A53 PDF BibTeX XML Cite \textit{I. Bhouri} and \textit{H. Skhiri}, Linear Algebra Appl. 430, No. 2--3, 847--854 (2009; Zbl 1151.47028) Full Text: DOI
Skhiri, Haïkel On the perturbation functions and similarity orbits. (English) Zbl 1146.47008 Stud. Math. 188, No. 1, 57-66 (2008). Reviewer: Mohammad Sal Moslehian (Mashhad) MSC: 47A53 47A30 PDF BibTeX XML Cite \textit{H. Skhiri}, Stud. Math. 188, No. 1, 57--66 (2008; Zbl 1146.47008) Full Text: DOI
Plischke, Elmar; Wirth, Fabian Duality results for the joint spectral radius and transient behavior. (English) Zbl 1330.15010 Linear Algebra Appl. 428, No. 10, 2368-2384 (2008). MSC: 15A18 15A60 47A13 PDF BibTeX XML Cite \textit{E. Plischke} and \textit{F. Wirth}, Linear Algebra Appl. 428, No. 10, 2368--2384 (2008; Zbl 1330.15010) Full Text: DOI
Bendaoud, M.; Bourhim, A.; Sarih, M. Linear maps preserving the essential spectral radius. (English) Zbl 1135.47033 Linear Algebra Appl. 428, No. 4, 1041-1045 (2008). Reviewer: Bojan Kuzma (Ljubljana) MSC: 47B49 47A10 47A53 PDF BibTeX XML Cite \textit{M. Bendaoud} et al., Linear Algebra Appl. 428, No. 4, 1041--1045 (2008; Zbl 1135.47033) Full Text: DOI
Duggal, Bhagwati P. SVEP and generalized Weyl’s theorem. (English) Zbl 1145.47003 Mediterr. J. Math. 4, No. 3, 309-320 (2007). Reviewer: Andrzej Sołtysiak (Poznań) MSC: 47A10 47A12 47B20 PDF BibTeX XML Cite \textit{B. P. Duggal}, Mediterr. J. Math. 4, No. 3, 309--320 (2007; Zbl 1145.47003) Full Text: DOI
McCarthy, John E.; Putinar, Mihai Positivity aspects of the Fantappiè transform. (English) Zbl 1132.46017 J. Anal. Math. 97, 57-82 (2006). MSC: 46E10 47A13 32A70 46E20 47A12 PDF BibTeX XML Cite \textit{J. E. McCarthy} and \textit{M. Putinar}, J. Anal. Math. 97, 57--82 (2006; Zbl 1132.46017) Full Text: DOI
Mecheri, Salah Weyl type theorems for a certain class of operators. (English) Zbl 1142.47005 Nihonkai Math. J. 17, No. 2, 155-165 (2006). Reviewer: Željko Čučković (Toledo) MSC: 47A10 47A12 47B20 47A53 PDF BibTeX XML Cite \textit{S. Mecheri}, Nihonkai Math. J. 17, No. 2, 155--165 (2006; Zbl 1142.47005)
Duggal, B. P.; Djordjević, S. V. Generalised Weyl’s theorem for a class of operators satisfying a norm condition. II. (English) Zbl 1131.47004 Math. Proc. R. Ir. Acad. 106A, No. 1, 1-9 (2006). Reviewer: Abdellatif Bourhim (Québec) MSC: 47A10 47B20 47A53 47A12 PDF BibTeX XML Cite \textit{B. P. Duggal} and \textit{S. V. Djordjević}, Math. Proc. R. Ir. Acad. 106A, No. 1, 1--9 (2006; Zbl 1131.47004) Full Text: DOI
Dosiev, Anar Quasispectra of solvable Lie algebra homomorphisms into Banach algebras. (English) Zbl 1100.47015 Stud. Math. 174, No. 1, 13-27 (2006). MSC: 47A60 47A13 17B30 PDF BibTeX XML Cite \textit{A. Dosiev}, Stud. Math. 174, No. 1, 13--27 (2006; Zbl 1100.47015) Full Text: DOI
Barraa, M. Essential numerical range of elementary operators. (English) Zbl 1105.47304 Proc. Am. Math. Soc. 133, No. 6, 1723-1726 (2005). MSC: 47B47 47A12 47A13 PDF BibTeX XML Cite \textit{M. Barraa}, Proc. Am. Math. Soc. 133, No. 6, 1723--1726 (2005; Zbl 1105.47304) Full Text: DOI
Mbekhta, Mostafa Perturbation functions and formulas for the essential spectral radius and the distance to the essential spectrum. (Fonctions perturbation et formules du rayon spectral essentiel et de distance au spectre essentiel.) (French. English summary) Zbl 1104.47015 J. Oper. Theory 51, No. 1, 3-18 (2004). Reviewer: Vladimir S. Pilidi (Rostov-na-Donu) MSC: 47A53 47A10 47A55 PDF BibTeX XML Cite \textit{M. Mbekhta}, J. Oper. Theory 51, No. 1, 3--18 (2004; Zbl 1104.47015)
Duggal, B. P.; Djordjević, S. V. Generalised Weyl’s theorem for a class of operators satisfying a norm condition. (English) Zbl 1089.47005 Math. Proc. R. Ir. Acad. 104A, No. 1, 75-81 (2004). Reviewer: Abdellatif Bourhim (Québec) MSC: 47A10 47A53 47A12 47B20 PDF BibTeX XML Cite \textit{B. P. Duggal} and \textit{S. V. Djordjević}, Math. Proc. R. Ir. Acad. 104A, No. 1, 75--81 (2004; Zbl 1089.47005) Full Text: DOI
Jefferies, Brian Spectral properties of noncommuting operators. (English) Zbl 1056.47002 Lecture Notes in Mathematics 1843. Berlin: Springer (ISBN 3-540-21923-4/pbk). viii, 184 p. (2004). Reviewer: Martin Väth (Würzburg) MSC: 47-02 47A13 15A27 15A66 47A60 47A12 47A56 47N50 81S40 PDF BibTeX XML Cite \textit{B. Jefferies}, Spectral properties of noncommuting operators. Berlin: Springer (2004; Zbl 1056.47002) Full Text: DOI
Escauriaza, Luis; Mitrea, Marius Transmission problems and spectral theory for singular integral operators on Lipschitz domains. (English) Zbl 1081.35020 J. Funct. Anal. 216, No. 1, 141-171 (2004). MSC: 35J25 58J32 31B15 31A10 45B05 47G10 78A30 31B10 PDF BibTeX XML Cite \textit{L. Escauriaza} and \textit{M. Mitrea}, J. Funct. Anal. 216, No. 1, 141--171 (2004; Zbl 1081.35020) Full Text: DOI
Jung, Il Bong; Ko, Eungil; Pearcy, Carl Square roots of (BCP)-operators. (English) Zbl 1067.47006 Arch. Math. 82, No. 4, 317-323 (2004). Reviewer: Ömer Gök (Istanbul) MSC: 47A15 47A10 47A53 PDF BibTeX XML Cite \textit{I. B. Jung} et al., Arch. Math. 82, No. 4, 317--323 (2004; Zbl 1067.47006) Full Text: DOI
Koike, Naoyuki Submanifold geometries in a symmetric space of non-compact type and a pseudo-Hilbert space. (English) Zbl 1064.53034 Kyushu J. Math. 58, No. 1, 167-202 (2004). Reviewer: Witold Mozgawa (Lublin) MSC: 53C40 53C35 58D10 PDF BibTeX XML Cite \textit{N. Koike}, Kyushu J. Math. 58, No. 1, 167--202 (2004; Zbl 1064.53034) Full Text: DOI
Emel’yanov, E. Yu.; Ercan, Z. A formula for the joint local spectral radius. (English) Zbl 1062.47006 Proc. Am. Math. Soc. 132, No. 5, 1449-1451 (2004). Reviewer: Andrzej Sołtysiak (Poznań) MSC: 47A11 47A13 46H05 PDF BibTeX XML Cite \textit{E. Yu. Emel'yanov} and \textit{Z. Ercan}, Proc. Am. Math. Soc. 132, No. 5, 1449--1451 (2004; Zbl 1062.47006) Full Text: DOI
Gohberg, I.; Kaashoek, M. A.; Spitkovsky, I. M. An overview of matrix factorization theory and operator applications. (English) Zbl 1049.47001 Gohberg, Israel (ed.) et al., Factorization and integrable systems. Lecture notes of the summer school, Faro, Portugal, September 2000. Basel: Birkhäuser (ISBN 3-7643-6938-8/hbk). Oper. Theory, Adv. Appl. 141, 1-102 (2003). Reviewer: Yuri I. Karlovich (Cuernavaca) MSC: 47-01 47A68 30E25 35Q15 45F15 45J05 47A12 47A48 47A53 47B35 PDF BibTeX XML Cite \textit{I. Gohberg} et al., in: Factorization and integrable systems. Lecture notes of the summer school, Faro, Portugal, September 2000. Basel: Birkhäuser. 1--102 (2003; Zbl 1049.47001)
Seddik, A. The numerical range of elementary operators. (English) Zbl 1016.47004 Integral Equations Oper. Theory 43, No. 2, 248-252 (2002). MSC: 47A12 47B47 47A13 PDF BibTeX XML Cite \textit{A. Seddik}, Integral Equations Oper. Theory 43, No. 2, 248--252 (2002; Zbl 1016.47004) Full Text: DOI
Badea, C.; Cassier, G. Constrained von Neumann inequalities. (English) Zbl 1049.47004 Adv. Math. 166, No. 2, 260-297 (2002). Reviewer: Raymond Mortini (Metz) MSC: 47A30 47A12 47A13 42A05 PDF BibTeX XML Cite \textit{C. Badea} and \textit{G. Cassier}, Adv. Math. 166, No. 2, 260--297 (2002; Zbl 1049.47004) Full Text: DOI arXiv
Yamazaki, Takeaki An expression of spectral radius via Aluthge transformation. (English) Zbl 1009.47010 Proc. Am. Math. Soc. 130, No. 4, 1131-1137 (2002). MSC: 47A63 47A30 47A13 PDF BibTeX XML Cite \textit{T. Yamazaki}, Proc. Am. Math. Soc. 130, No. 4, 1131--1137 (2002; Zbl 1009.47010) Full Text: DOI
Shulman, Victor S.; Turovskiĭ, Yuriĭ V. Formulae for joint spectral radii of sets of operators. (English) Zbl 1016.47006 Stud. Math. 149, No. 1, 23-37 (2002). Reviewer: Pavel Dyshlovenko (Ulyanovsk) MSC: 47A13 47A30 47D03 PDF BibTeX XML Cite \textit{V. S. Shulman} and \textit{Y. V. Turovskiĭ}, Stud. Math. 149, No. 1, 23--37 (2002; Zbl 1016.47006) Full Text: DOI
Arveson, William A short course on spectral theory. (English) Zbl 0997.47001 Graduate Texts in Mathematics. 209. New York, NY: Springer. x, 135 p. (2002). Reviewer: Jürgen Appell (Würzburg) MSC: 47-02 47A10 46L05 46L80 46H05 47A60 47L80 PDF BibTeX XML Cite \textit{W. Arveson}, A short course on spectral theory. New York, NY: Springer (2002; Zbl 0997.47001)
Badea, C.; Mbekhta, M. The stability radius of Fredholm linear pencils. (English) Zbl 0985.47011 J. Math. Anal. Appl. 260, No. 1, 159-172 (2001). Reviewer: Vyacheslav Pivovarchik (Odessa) MSC: 47A53 47A56 47A12 47A55 PDF BibTeX XML Cite \textit{C. Badea} and \textit{M. Mbekhta}, J. Math. Anal. Appl. 260, No. 1, 159--172 (2001; Zbl 0985.47011) Full Text: DOI arXiv
Liu, Shunjun; Hu, Zechun; Cao, Guangfu The spectra and numerical range of several commuting operators. (Chinese. English summary) Zbl 1003.47003 Acta Anal. Funct. Appl. 3, No. 2, 183-187 (2001). MSC: 47A13 47A12 47A10 PDF BibTeX XML Cite \textit{S. Liu} et al., Acta Anal. Funct. Appl. 3, No. 2, 183--187 (2001; Zbl 1003.47003)
Beltiţă, Daniel Analytic joint spectral radius in a solvable Lie algebra of operators. (English) Zbl 0974.47004 Stud. Math. 144, No. 2, 153-167 (2001). MSC: 47A13 28B05 17B30 PDF BibTeX XML Cite \textit{D. Beltiţă}, Stud. Math. 144, No. 2, 153--167 (2001; Zbl 0974.47004) Full Text: DOI
Lee, Doo-Sung Penny-shaped crack in a long circular cylinder subjected to a uniform shearing stress. (English) Zbl 0994.74060 Eur. J. Mech., A, Solids 20, No. 2, 227-239 (2001). MSC: 74R10 74G70 PDF BibTeX XML Cite \textit{D.-S. Lee}, Eur. J. Mech., A, Solids 20, No. 2, 227--239 (2001; Zbl 0994.74060) Full Text: DOI
Lee, Woo Young Weyl spectra of operator matrices. (English) Zbl 0965.47011 Proc. Am. Math. Soc. 129, No. 1, 131-138 (2001). Reviewer: Karl-Heinz Förster (Berlin) MSC: 47A53 47A55 PDF BibTeX XML Cite \textit{W. Y. Lee}, Proc. Am. Math. Soc. 129, No. 1, 131--138 (2001; Zbl 0965.47011) Full Text: DOI
Azizov, M. Information complexity of multidimensional Fredholm integral equations with harmonic coefficients. (English. Russian original) Zbl 0979.45001 Ukr. Math. J. 52, No. 7, 993-1001 (2000); translation from Ukr. Mat. Zh. 52, No. 7, 867-874 (2000). MSC: 45B05 94A17 65Y20 PDF BibTeX XML Cite \textit{M. Azizov}, Ukr. Mat. Zh. 52, No. 7, 867--874 (2000; Zbl 0979.45001); translation from Ukr. Mat. Zh. 52, No. 7, 867--874 (2000) Full Text: DOI
Kohaupt, Ludwig An alternative for the spectral radius of positive integral operators—a functional analytic approach. (English) Zbl 0987.47041 Rocky Mt. J. Math. 30, No. 2, 609-620 (2000). Reviewer: D.Przeworska-Rolewicz (Warszawa) MSC: 47G10 47A10 45B05 45P05 47B65 PDF BibTeX XML Cite \textit{L. Kohaupt}, Rocky Mt. J. Math. 30, No. 2, 609--620 (2000; Zbl 0987.47041) Full Text: DOI Link
Yang, Zhilin Solutions to integral equations of Fredholm-Volterra type. (Chinese. English summary) Zbl 0966.45003 J. Huaihua Teach. Coll. 19, No. 5, 7-10 (2000). Reviewer: Hu Chuangan (Tianjin) MSC: 45G10 PDF BibTeX XML Cite \textit{Z. Yang}, J. Huaihua Teach. Coll. 19, No. 5, 7--10 (2000; Zbl 0966.45003)
Protasov, V. Yu. Asymptotics behaviour of the partition function. (English. Russian original) Zbl 1004.11056 Sb. Math. 191, No. 3, 381-414 (2000); translation from Mat. Sb. 191, No. 3, 65-98 (2000). Reviewer: Wolfgang Schwarz (Frankfurt am Main) MSC: 11P82 47A13 11P81 PDF BibTeX XML Cite \textit{V. Yu. Protasov}, Sb. Math. 191, No. 3, 65--98 (2000; Zbl 1004.11056); translation from Mat. Sb. 191, No. 3, 65--98 (2000) Full Text: DOI
Medková, Dagmar Solution of the Robin and Dirichlet problem for the Laplace equation. (English) Zbl 0960.31003 Gilbert, Robert P. (ed.) et al., Direct and inverse problems of mathematical physics. Papers presented at special sessions of the ISAAC’97 congress, University of Delaware, Newark, DE, USA, June 2-7, 1997. Dordrecht: Kluwer Academic Publishers. Int. Soc. Anal. Appl. Comput. 5, 281-290 (2000). Reviewer: Vasile Ionescu (Bucureşti) MSC: 31B10 31-02 35J05 PDF BibTeX XML Cite \textit{D. Medková}, in: Direct and inverse problems of mathematical physics. Papers presented at special sessions of the ISAAC'97 congress, University of Delaware, Newark, DE, USA, June 2--7, 1997. Dordrecht: Kluwer Academic Publishers. 281--290 (2000; Zbl 0960.31003)
Spitkovsky, Ilya M. On the non-round points of the boundary of the numerical range. (English) Zbl 0951.47007 Linear Multilinear Algebra 47, No. 1, 29-33 (2000). Reviewer: F.H.Vasilescu (Villeneuve d’Ascq) MSC: 47A12 47A10 47A53 PDF BibTeX XML Cite \textit{I. M. Spitkovsky}, Linear Multilinear Algebra 47, No. 1, 29--33 (2000; Zbl 0951.47007) Full Text: DOI
Nakazi, Takahiko; Okubo, Kazuyoshi Generalized numerical radius and unitary \(\rho\)-dilation. (English) Zbl 0955.47007 Math. Jap. 50, No. 3, 347-354 (1999). Reviewer: A.Sołtysiak (Poznań) MSC: 47A20 47A12 47A13 PDF BibTeX XML Cite \textit{T. Nakazi} and \textit{K. Okubo}, Math. Japon. 50, No. 3, 347--354 (1999; Zbl 0955.47007)
Mitrea, Irina Spectral radius properties for layer potentials associated with the elastostatics and hydrostatics equations in nonsmooth domains. (English) Zbl 0932.45004 J. Fourier Anal. Appl. 5, No. 4, 385-408 (1999). Reviewer: M.Shapiro (Beersheva) MSC: 45E10 45C05 35J25 PDF BibTeX XML Cite \textit{I. Mitrea}, J. Fourier Anal. Appl. 5, No. 4, 385--408 (1999; Zbl 0932.45004) Full Text: DOI EuDML
Boasso, Enrico On the joint spectral radius of a nilpotent Lie algebra of matrices. (English) Zbl 0926.47004 Stud. Math. 132, No. 1, 15-27 (1999). MSC: 47A13 17B30 PDF BibTeX XML Cite \textit{E. Boasso}, Stud. Math. 132, No. 1, 15--27 (1999; Zbl 0926.47004) Full Text: DOI EuDML arXiv
Kalitvin, A. S. Spectral properties of partial integral operators of Volterra and Volterra-Fredholm type. (English) Zbl 0912.47028 Z. Anal. Anwend. 17, No. 2, 297-309 (1998). MSC: 47G10 45D05 46E30 47A10 47A25 47A53 PDF BibTeX XML Cite \textit{A. S. Kalitvin}, Z. Anal. Anwend. 17, No. 2, 297--309 (1998; Zbl 0912.47028) Full Text: DOI
Poon, Pak Wai The stability radius of a quasi-Fredholm operator. (English) Zbl 0891.47012 Proc. Am. Math. Soc. 126, No. 4, 1071-1080 (1998). MSC: 47A55 47A10 47A53 PDF BibTeX XML Cite \textit{P. W. Poon}, Proc. Am. Math. Soc. 126, No. 4, 1071--1080 (1998; Zbl 0891.47012) Full Text: DOI
Sebe, Gabriela Ileana A generalization of Ionescu Tulcea and Marinescu’s ergodic theorem. (English) Zbl 0928.47004 Sci. Bull., Ser. A, Appl. Math. Phys., Politeh. Univ. Buchar. 59, No. 1-4, 11-22 (1997). Reviewer: Daniel Beltiţă (Bucureşti) MSC: 47A35 47A53 47H09 PDF BibTeX XML Cite \textit{G. I. Sebe}, Sci. Bull., Ser. A, Appl. Math. Phys., Politeh. Univ. Buchar. 59, No. 1--4, 11--22 (1997; Zbl 0928.47004)
Gomilko, A. M.; Radzievskii, G. V. On the numerical ranges of a family of commuting operators. (English. Russian original) Zbl 0921.47006 Math. Notes 62, No. 5, 659-663 (1997); translation from Mat. Zametki 62, No. 5, 787-791 (1997). Reviewer: M.Kutkut (Amman) MSC: 47A12 47A13 46C50 PDF BibTeX XML Cite \textit{A. M. Gomilko} and \textit{G. V. Radzievskii}, Math. Notes 62, No. 5, 659--663 (1997; Zbl 0921.47006); translation from Mat. Zametki 62, No. 5, 787--791 (1997) Full Text: DOI
Badea, Catalin; Mbekhta, Mostafa Generalized inverses and the maximal radius of regularity of a Fredholm operator. (English) Zbl 0897.47001 Integral Equations Oper. Theory 28, No. 2, 133-146 (1997). MSC: 47A05 47A53 47A10 PDF BibTeX XML Cite \textit{C. Badea} and \textit{M. Mbekhta}, Integral Equations Oper. Theory 28, No. 2, 133--146 (1997; Zbl 0897.47001) Full Text: DOI arXiv
Pereverzev, S. V.; Azizov, M. On optimal methods of the information setting in solution of integral equations with analytic kernels. (Russian) Zbl 0889.45002 Ukr. Mat. Zh. 48, No. 5, 656-664 (1996). Reviewer: A.A.Martynyuk (Kyïv) MSC: 45B05 94A17 PDF BibTeX XML Cite \textit{S. V. Pereverzev} and \textit{M. Azizov}, Ukr. Mat. Zh. 48, No. 5, 656--664 (1996; Zbl 0889.45002) Full Text: DOI
Nanda, Sudarsan A note on numerical ranges of operators. (English) Zbl 0996.47004 Proc. Natl. Acad. Sci. India, Sect. A 66, No. 1, 59-62 (1996). MSC: 47A12 47A13 PDF BibTeX XML Cite \textit{S. Nanda}, Proc. Natl. Acad. Sci. India, Sect. A 66, No. 1, 59--62 (1996; Zbl 0996.47004)
Protasov, V. Yu. The joint spectral radius and invariant sets of linear operators. (Russian. English summary) Zbl 0899.47002 Fundam. Prikl. Mat. 2, No. 1, 205-231 (1996). MSC: 47A13 PDF BibTeX XML Cite \textit{V. Yu. Protasov}, Fundam. Prikl. Mat. 2, No. 1, 205--231 (1996; Zbl 0899.47002)
Pereverzev, S. V.; Azizov, M. On optimal methods of the information setting in solution of integral equations with analytic kernels. (English. Russian original) Zbl 0932.45001 Ukr. Math. J. 48, No. 5, 733-752 (1996); translation from Ukr. Mat. Zh. 48, No. 5, 656-664 (1996). MSC: 45B05 94A17 PDF BibTeX XML Cite \textit{S. V. Pereverzev} and \textit{M. Azizov}, Ukr. Mat. Zh. 48, No. 5, 656--664 (1996; Zbl 0932.45001); translation from Ukr. Mat. Zh. 48, No. 5, 656--664 (1996) Full Text: DOI
Ionescu, Adrian Expanding the joint spectrum of pairs of commuting contractions. (English) Zbl 0863.47003 Proc. Am. Math. Soc. 124, No. 12, 3711-3719 (1996). MSC: 47A15 30C20 30D40 47A13 PDF BibTeX XML Cite \textit{A. Ionescu}, Proc. Am. Math. Soc. 124, No. 12, 3711--3719 (1996; Zbl 0863.47003) Full Text: DOI
Rosenthal, P.; Sołtysiak, A. Formulas for the joint spectral radius of non-commuting Banach algebra elements. (English) Zbl 0849.46034 Proc. Am. Math. Soc. 123, No. 9, 2705-2708 (1995). MSC: 46H05 47A13 PDF BibTeX XML Cite \textit{P. Rosenthal} and \textit{A. Sołtysiak}, Proc. Am. Math. Soc. 123, No. 9, 2705--2708 (1995; Zbl 0849.46034) Full Text: DOI
Bhatia, Rajendra; Bhattacharyya, Tirthankar On the joint spectral radius of commuting matrices. (English) Zbl 0830.47002 Stud. Math. 114, No. 1, 29-38 (1995). MSC: 47A13 47A10 PDF BibTeX XML Cite \textit{R. Bhatia} and \textit{T. Bhattacharyya}, Stud. Math. 114, No. 1, 29--38 (1995; Zbl 0830.47002) Full Text: DOI EuDML
Stavinoha, Pavel On limits of \(L_ p\)-norms of an integral operator. (English) Zbl 0816.47055 Appl. Math., Praha 39, No. 4, 299-307 (1994). MSC: 47G10 47A53 47A30 47B15 47A10 PDF BibTeX XML Cite \textit{P. Stavinoha}, Appl. Math., Praha 39, No. 4, 299--307 (1994; Zbl 0816.47055) Full Text: EuDML
Müller, Vladimír Local behaviour of operators. (English) Zbl 0820.47001 Zemánek, Jaroslav (ed.), Functional analysis and operator theory. Proceedings of the 39th semester at the Stefan Banach International Mathematical Center in Warsaw, Poland, held March 2-May 30, 1992. Warsaw: Polish Academy of Sciences, Banach Cent. Publ. 30, 251-258 (1994). Reviewer: M.Z.Nashed (Newark / Delaware) MSC: 47A05 47A11 47A13 47A15 PDF BibTeX XML Cite \textit{V. Müller}, Banach Cent. Publ. 30, 251--258 (1994; Zbl 0820.47001)
Sołtysiak, Andrzej On the joint spectral radii of commuting Banach algebra elements. (English) Zbl 0811.46047 Stud. Math. 105, No. 1, 93-99 (1993). MSC: 46H05 47A13 PDF BibTeX XML Cite \textit{A. Sołtysiak}, Stud. Math. 105, No. 1, 93--99 (1993; Zbl 0811.46047) Full Text: DOI EuDML
Galaz-Fontes, Fernando Measures of noncompactness and upper semi-Fredholm perturbation theorems. (English) Zbl 0782.47013 Proc. Am. Math. Soc. 118, No. 3, 891-897 (1993). Reviewer: H.S.Nur (Fresno) MSC: 47A55 47A53 47H09 PDF BibTeX XML Cite \textit{F. Galaz-Fontes}, Proc. Am. Math. Soc. 118, No. 3, 891--897 (1993; Zbl 0782.47013) Full Text: DOI
Martínez, Josep The essential spectral radius of dominated positive operators. (English) Zbl 0804.47040 Proc. Am. Math. Soc. 118, No. 2, 419-426 (1993). Reviewer: W.A.Feldman (Fayetteville) MSC: 47B65 46B42 47D06 47A53 PDF BibTeX XML Cite \textit{J. Martínez}, Proc. Am. Math. Soc. 118, No. 2, 419--426 (1993; Zbl 0804.47040) Full Text: DOI
Müller, Vladimír; Sołtysiak, Andrzej Spectral radius formula for commuting Hilbert space operators. (English) Zbl 0812.47004 Stud. Math. 103, No. 3, 329-333 (1992). MSC: 47A10 47A13 PDF BibTeX XML Cite \textit{V. Müller} and \textit{A. Sołtysiak}, Stud. Math. 103, No. 3, 329--333 (1992; Zbl 0812.47004) Full Text: DOI
Chō, Muneo; Huruya, Tadasi; Wrobel, Volker On the joint spectral radius. II. (English) Zbl 0777.47001 Proc. Am. Math. Soc. 116, No. 4, 987-989 (1992). MSC: 47A10 47A13 PDF BibTeX XML Cite \textit{M. Chō} et al., Proc. Am. Math. Soc. 116, No. 4, 987--989 (1992; Zbl 0777.47001) Full Text: DOI
Bao, Xiu; Cao, Guangfu On joint spectra and joint numerical ranges for several bounded linear operators. (Chinese. English summary) Zbl 0757.47004 J. Nat. Sci. Heilongjiang Univ. 9, No. 1, 30-34 (1992). MSC: 47A13 47A10 47A12 PDF BibTeX XML Cite \textit{X. Bao} and \textit{G. Cao}, J. Nat. Sci. Heilongjiang Univ. 9, No. 1, 30--34 (1992; Zbl 0757.47004)
Chō, Muneo; Żelazko, Wiesław On geometric spectral radius of commuting \(n\)-tuples of operators. (English) Zbl 0784.47004 Hokkaido Math. J. 21, No. 2, 251-258 (1992). Reviewer: R.Salvi (Milano) MSC: 47A10 47A13 PDF BibTeX XML Cite \textit{M. Chō} and \textit{W. Żelazko}, Hokkaido Math. J. 21, No. 2, 251--258 (1992; Zbl 0784.47004) Full Text: DOI