Curto, Raúl E.; Lee, Sang Hoon; Yoon, Jasang Solution of the reconstruction-of-the-measure problem for canonical invariant subspaces. (English) Zbl 07534205 Ann. Mat. Pura Appl. (4) 201, No. 3, 1489-1504 (2022). MSC: 47B20 47B37 47A13 28A50 44A60 47-04 47A20 PDF BibTeX XML Cite \textit{R. E. Curto} et al., Ann. Mat. Pura Appl. (4) 201, No. 3, 1489--1504 (2022; Zbl 07534205) Full Text: DOI OpenURL
Braha, Naim L.; Hoxha, Ilmi; Estaremi, Usef \((n,k)\)-quasi class \(Q\) and \((n,k)\)-quasi class \(Q^\ast\) weighted composition operators. (English) Zbl 07533192 Oper. Matrices 16, No. 1, 171-188 (2022). MSC: 47B20 47A80 47B37 PDF BibTeX XML Cite \textit{N. L. Braha} et al., Oper. Matrices 16, No. 1, 171--188 (2022; Zbl 07533192) Full Text: DOI OpenURL
Baghdad, Abderrahim; Kaadoud, Mohamed Chraibi A note on th maximal numerical range of the bimultiplication \(M_{2,A,B}\). (English) Zbl 07532075 J. Math. Ext. 16, No. 4, Paper No. 9, 12 p. (2022). MSC: 47A12 47B20 47B47 PDF BibTeX XML Cite \textit{A. Baghdad} and \textit{M. C. Kaadoud}, J. Math. Ext. 16, No. 4, Paper No. 9, 12 p. (2022; Zbl 07532075) Full Text: DOI OpenURL
Bachir, Ahmed; Pagacz, Patryk The Berberian’s transform and an asymmetric Putnam-Fuglede theorem. (English) Zbl 07531847 Complex Anal. Oper. Theory 16, No. 4, Paper No. 59, 10 p. (2022). MSC: 47B20 47A30 47B47 PDF BibTeX XML Cite \textit{A. Bachir} and \textit{P. Pagacz}, Complex Anal. Oper. Theory 16, No. 4, Paper No. 59, 10 p. (2022; Zbl 07531847) Full Text: DOI OpenURL
Misra, Gadadhar; Pramanick, Paramita; Sinha, Kalyan B. A trace inequality for commuting \(d\)-tuples of operators. (English) Zbl 07529827 Integral Equations Oper. Theory 94, No. 2, Paper No. 16, 37 p. (2022). MSC: 47B10 47B20 47A08 47A16 47B37 PDF BibTeX XML Cite \textit{G. Misra} et al., Integral Equations Oper. Theory 94, No. 2, Paper No. 16, 37 p. (2022; Zbl 07529827) Full Text: DOI OpenURL
Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan Conditional positive definiteness in operator theory. (English) Zbl 07527250 Diss. Math. 578, 1-64 (2022). MSC: 47B20 44A60 47A20 47A60 PDF BibTeX XML Cite \textit{Z. J. Jabłoński} et al., Diss. Math. 578, 1--64 (2022; Zbl 07527250) Full Text: DOI OpenURL
Feki, Kais Some \(A\)-spectral radius inequalities for \(A\)-bounded Hilbert space operators. (English) Zbl 07525107 Banach J. Math. Anal. 16, No. 2, Paper No. 31, 22 p. (2022). MSC: 47A12 47B65 47B15 47B20 PDF BibTeX XML Cite \textit{K. Feki}, Banach J. Math. Anal. 16, No. 2, Paper No. 31, 22 p. (2022; Zbl 07525107) Full Text: DOI OpenURL
Kimsey, David P. The matricial subnormal completion problem. (English) Zbl 07515374 Linear Algebra Appl. 645, 170-193 (2022). MSC: 47B20 47B37 47A13 44A60 PDF BibTeX XML Cite \textit{D. P. Kimsey}, Linear Algebra Appl. 645, 170--193 (2022; Zbl 07515374) Full Text: DOI OpenURL
Sohrabi, Morteza Relationship between Cauchy dual and Drazin inverse of conditional type operators. (English) Zbl 07505772 Bull. Sci. Math. 176, Article ID 103119, 13 p. (2022). MSC: 47B20 47B38 PDF BibTeX XML Cite \textit{M. Sohrabi}, Bull. Sci. Math. 176, Article ID 103119, 13 p. (2022; Zbl 07505772) Full Text: DOI OpenURL
Mecheri, Salah Positive answer to the invariant and hyperinvariant subspaces problems for hyponormal operators. (English) Zbl 07501804 Georgian Math. J. 29, No. 2, 233-244 (2022). MSC: 47B47 47A30 47B20 47A15 PDF BibTeX XML Cite \textit{S. Mecheri}, Georgian Math. J. 29, No. 2, 233--244 (2022; Zbl 07501804) Full Text: DOI OpenURL
Lauric, Vasile Some consequences of Putinar’s model of hyponormal operators concerning Hilbert-Schmidt commutators. (English) Zbl 07501044 Rend. Circ. Mat. Palermo (2) 71, No. 1, 373-379 (2022). Reviewer: Elhadj Dahia (Bou Saâda) MSC: 47B47 47B10 47B20 PDF BibTeX XML Cite \textit{V. Lauric}, Rend. Circ. Mat. Palermo (2) 71, No. 1, 373--379 (2022; Zbl 07501044) Full Text: DOI OpenURL
Jocić, Danko R.; Lazarević, Milan Cauchy-Schwarz norm inequalities for elementary operators and inner product type transformers generated by families of subnormal operators. (English) Zbl 07488605 Mediterr. J. Math. 19, No. 2, Paper No. 49, 22 p. (2022). MSC: 47B49 47B47 47A56 47A30 47B10 47B15 47B20 PDF BibTeX XML Cite \textit{D. R. Jocić} and \textit{M. Lazarević}, Mediterr. J. Math. 19, No. 2, Paper No. 49, 22 p. (2022; Zbl 07488605) Full Text: DOI OpenURL
Thankarajan, Prasad Coposinormal weighted composition operators on \(H^2(\mathbb{D})\). (English) Zbl 07487920 J. Math. Ext. 16, No. 2, Paper No. 5, 10 p. (2022). MSC: 47B20 47B33 47B38 PDF BibTeX XML Cite \textit{P. Thankarajan}, J. Math. Ext. 16, No. 2, Paper No. 5, 10 p. (2022; Zbl 07487920) Full Text: DOI OpenURL
Ramesh, G.; Osaka, H. On operators which attain their norm on every reducing subspace. (English) Zbl 07484165 Ann. Funct. Anal. 13, No. 2, Paper No. 19, 13 p. (2022). MSC: 47A15 47A46 47A67 47A10 47A58 47B20 PDF BibTeX XML Cite \textit{G. Ramesh} and \textit{H. Osaka}, Ann. Funct. Anal. 13, No. 2, Paper No. 19, 13 p. (2022; Zbl 07484165) Full Text: DOI OpenURL
Kim, Yoenha; Ko, Eungil Characterizations of square roots of unitary weighted composition operators on \(H^2\). (English) Zbl 07473858 Complex Anal. Oper. Theory 16, No. 1, Paper No. 14, 22 p. (2022). MSC: 47B20 47B38 47B33 PDF BibTeX XML Cite \textit{Y. Kim} and \textit{E. Ko}, Complex Anal. Oper. Theory 16, No. 1, Paper No. 14, 22 p. (2022; Zbl 07473858) Full Text: DOI OpenURL
Feki, Kais; Kittaneh, Fuad Some new refinements of generalized numerical radius inequalities for Hilbert space operators. (English) Zbl 07458058 Mediterr. J. Math. 19, No. 1, Paper No. 17, 16 p. (2022). MSC: 47A12 47B65 47B15 47B20 PDF BibTeX XML Cite \textit{K. Feki} and \textit{F. Kittaneh}, Mediterr. J. Math. 19, No. 1, Paper No. 17, 16 p. (2022; Zbl 07458058) Full Text: DOI OpenURL
Benhida, Chafiq; Curto, Raúl E.; Exner, George R. Moment infinite divisibility of weighted shifts: sequence conditions. (English) Zbl 07451883 Complex Anal. Oper. Theory 16, No. 1, Paper No. 5, 23 p. (2022). MSC: 47B20 47B37 44A60 PDF BibTeX XML Cite \textit{C. Benhida} et al., Complex Anal. Oper. Theory 16, No. 1, Paper No. 5, 23 p. (2022; Zbl 07451883) Full Text: DOI arXiv OpenURL
Idrissi, Kaissar; Zerouali, El Hassan Recursiveness approach to multi-dimensional moment problems. (English) Zbl 07428144 Ann. Funct. Anal. 13, No. 1, Paper No. 2, 19 p. (2022). MSC: 47A57 44A60 47B20 PDF BibTeX XML Cite \textit{K. Idrissi} and \textit{E. H. Zerouali}, Ann. Funct. Anal. 13, No. 1, Paper No. 2, 19 p. (2022; Zbl 07428144) Full Text: DOI OpenURL
Pietrzycki, Paweł; Stochel, Jan Corrigendum to: “Subnormal \(n\)th roots of quasinormal operators are quasinormal”. (English) Zbl 1483.47042 J. Funct. Anal. 282, No. 1, Article ID 109260, 2 p. (2022). MSC: 47B20 47B15 47A63 44A60 PDF BibTeX XML Cite \textit{P. Pietrzycki} and \textit{J. Stochel}, J. Funct. Anal. 282, No. 1, Article ID 109260, 2 p. (2022; Zbl 1483.47042) Full Text: DOI OpenURL
Bachir, Ahmed; Sayyaf, Nawal Ali; Ansari, Khursheed J.; Ouarghi, Khalid Putnam-Fuglede type theorem for class \(\mathcal{A}_k\) operators. (English) Zbl 07543315 AIMS Math. 6, No. 4, 4073-4082 (2021). MSC: 47B47 47A30 47B20 PDF BibTeX XML Cite \textit{A. Bachir} et al., AIMS Math. 6, No. 4, 4073--4082 (2021; Zbl 07543315) Full Text: DOI OpenURL
Narayanasamy, A.; Krishnaswamy, D. On \(n\)-power hyponormal operators in indefinite inner product space. (English) Zbl 07540018 Bull. Int. Math. Virtual Inst. 11, No. 1, 121-125 (2021). MSC: 15A09 46C20 PDF BibTeX XML Cite \textit{A. Narayanasamy} and \textit{D. Krishnaswamy}, Bull. Int. Math. Virtual Inst. 11, No. 1, 121--125 (2021; Zbl 07540018) Full Text: DOI OpenURL
Sadraoui, Houcine; Garayev, Mubariz; Guediri, Hocine On hyponormality of Toeplitz operators. (English) Zbl 07524105 Rocky Mt. J. Math. 51, No. 5, 1821-1831 (2021). MSC: 47B35 15B48 31A10 PDF BibTeX XML Cite \textit{H. Sadraoui} et al., Rocky Mt. J. Math. 51, No. 5, 1821--1831 (2021; Zbl 07524105) Full Text: DOI Link OpenURL
Mecheri, Salah; Prasad, T. Analytic extension of totally polynomially posinormal operators. (English) Zbl 07523870 Math. Rep., Buchar. 23(73), No. 3, 359-372 (2021). MSC: 47A11 47A15 47B20 PDF BibTeX XML Cite \textit{S. Mecheri} and \textit{T. Prasad}, Math. Rep., Buchar. 23(73), No. 3, 359--372 (2021; Zbl 07523870) OpenURL
Sadraoui, Houcine; Halouani, Borhen; Garayev, Mubariz T. On hyponormality on a weighted annulus. (English) Zbl 07517508 Open Math. 19, 1510-1516 (2021). MSC: 47B35 47B20 15B48 PDF BibTeX XML Cite \textit{H. Sadraoui} et al., Open Math. 19, 1510--1516 (2021; Zbl 07517508) Full Text: DOI OpenURL
Chavan, Sameer; Feki, Kais Spherical symmetry of some unitary invariants for commuting tuples. (English) Zbl 07515571 Oper. Matrices 15, No. 3, 1131-1139 (2021). MSC: 47A13 47B20 PDF BibTeX XML Cite \textit{S. Chavan} and \textit{K. Feki}, Oper. Matrices 15, No. 3, 1131--1139 (2021; Zbl 07515571) Full Text: DOI OpenURL
Pradeep, R.; Naik, P. Maheswari; Mahmoud, Sid Ahmed Ould Ahmed On \(m\)-quasi-totally-\((\alpha,\beta)\)-normal operators. (English) Zbl 07515567 Oper. Matrices 15, No. 3, 1055-1072 (2021). MSC: 47B15 47B20 47A15 PDF BibTeX XML Cite \textit{R. Pradeep} et al., Oper. Matrices 15, No. 3, 1055--1072 (2021; Zbl 07515567) Full Text: DOI OpenURL
Dharmarha, Preeti; Ram, Sonu A note on \((m,n)^*\)-paranormal operators. (English) Zbl 07492778 Novi Sad J. Math. 51, No. 2, 17-26 (2021). MSC: 47B20 47A10 47A05 PDF BibTeX XML Cite \textit{P. Dharmarha} and \textit{S. Ram}, Novi Sad J. Math. 51, No. 2, 17--26 (2021; Zbl 07492778) Full Text: DOI OpenURL
Rashid, Mohammad H. M.; Prasad, T. Weyl type theorems for algebriacally class \(p\)-\(wA(s,t)\) operators. (English) Zbl 07490902 Facta Univ., Ser. Math. Inf. 36, No. 3, 575-584 (2021). MSC: 47A10 47A53 47B20 PDF BibTeX XML Cite \textit{M. H. M. Rashid} and \textit{T. Prasad}, Facta Univ., Ser. Math. Inf. 36, No. 3, 575--584 (2021; Zbl 07490902) Full Text: DOI OpenURL
Mecheri, Salah Analytic extension of \(n\)-normal operators. (English) Zbl 1482.47034 Oper. Matrices 15, No. 2, 615-626 (2021). MSC: 47B15 47A11 47A15 47B20 PDF BibTeX XML Cite \textit{S. Mecheri}, Oper. Matrices 15, No. 2, 615--626 (2021; Zbl 1482.47034) Full Text: DOI OpenURL
Burdak, Zbigniew; Kosiek, Marek; Pagacz, Patryk; Rudol, Krzysztof; Słociński, Marek Generalized powers and measures. (English) Zbl 07478491 Opusc. Math. 41, No. 6, 747-754 (2021). MSC: 47B20 47A13 47B91 PDF BibTeX XML Cite \textit{Z. Burdak} et al., Opusc. Math. 41, No. 6, 747--754 (2021; Zbl 07478491) Full Text: DOI OpenURL
Bala, Neeru; Ramesh, G. Weyl’s theorem for commuting tuples of paranormal and \(\ast\)-paranormal operators. (English) Zbl 07477724 Bull. Pol. Acad. Sci., Math. 69, No. 1, 69-86 (2021). MSC: 47A10 47A13 47A53 47A60 47B20 PDF BibTeX XML Cite \textit{N. Bala} and \textit{G. Ramesh}, Bull. Pol. Acad. Sci., Math. 69, No. 1, 69--86 (2021; Zbl 07477724) Full Text: DOI arXiv OpenURL
Kim, Sumin; Lee, Jongrak Hyponormality of Toeplitz operators with non-harmonic symbols on the Bergman spaces. (English) Zbl 07465046 J. Inequal. Appl. 2021, Paper No. 67, 13 p. (2021). MSC: 47B35 47B20 30H20 PDF BibTeX XML Cite \textit{S. Kim} and \textit{J. Lee}, J. Inequal. Appl. 2021, Paper No. 67, 13 p. (2021; Zbl 07465046) Full Text: DOI OpenURL
Ko, Eungil Operators commuting with self-adjoint weighted composition operators on \(H^2\). (English) Zbl 07453473 Complex Var. Elliptic Equ. 66, No. 12, 2076-2089 (2021). MSC: 47B20 47B38 47B33 PDF BibTeX XML Cite \textit{E. Ko}, Complex Var. Elliptic Equ. 66, No. 12, 2076--2089 (2021; Zbl 07453473) Full Text: DOI OpenURL
Dong, Yanwu; Zheng, Guijun; Li, Chunji On \(n\)-hynonormality for backward extensions of Bergman weighted shifts. (English) Zbl 1483.47056 J. Appl. Math. Inform. 39, No. 3-4, 443-454 (2021). MSC: 47B37 47B20 PDF BibTeX XML Cite \textit{Y. Dong} et al., J. Appl. Math. Inform. 39, No. 3--4, 443--454 (2021; Zbl 1483.47056) Full Text: DOI OpenURL
Rashid, M. H. M. Tensor product and variants of Weyl’s type theorem for \(p\)-\(w\)-hyponormal operators. (English) Zbl 1485.47031 Methods Funct. Anal. Topol. 27, No. 1, 88-102 (2021). Reviewer: Anatoly N. Kochubei (Kyïv) MSC: 47B20 47A80 PDF BibTeX XML Cite \textit{M. H. M. Rashid}, Methods Funct. Anal. Topol. 27, No. 1, 88--102 (2021; Zbl 1485.47031) Full Text: DOI Link OpenURL
Beiba, El Moctar Ould \(n\)-power-posinormal operators. (English) Zbl 1485.47028 Methods Funct. Anal. Topol. 27, No. 1, 18-24 (2021). Reviewer: Anatoly N. Kochubei (Kyïv) MSC: 47B20 PDF BibTeX XML Cite \textit{E. M. O. Beiba}, Methods Funct. Anal. Topol. 27, No. 1, 18--24 (2021; Zbl 1485.47028) Full Text: DOI OpenURL
Podder, Shubhankar; Pradhan, Deepak Kumar The reflexivity of hyperexpansions and their Cauchy dual operators. (English) Zbl 07446824 Oper. Matrices 15, No. 1, 195-207 (2021). Reviewer: Sameer Chavan (Kanpur) MSC: 47B20 47A16 PDF BibTeX XML Cite \textit{S. Podder} and \textit{D. K. Pradhan}, Oper. Matrices 15, No. 1, 195--207 (2021; Zbl 07446824) Full Text: DOI arXiv OpenURL
Hwang, In Sung; Kim, In Hyoun; Kim, Sumin Weak subnormality of infinite 4-banded matrices. (English) Zbl 07446818 Oper. Matrices 15, No. 1, 117-125 (2021). MSC: 47B20 47B37 47A63 PDF BibTeX XML Cite \textit{I. S. Hwang} et al., Oper. Matrices 15, No. 1, 117--125 (2021; Zbl 07446818) Full Text: DOI OpenURL
Curto, Raúl E.; Lee, Sang Hoon; Yoon, Jasang Polynomial embeddings of unilateral weighted shifts in 2-variable weighted shifts. (English) Zbl 07445582 Integral Equations Oper. Theory 93, No. 6, Paper No. 64, 29 p. (2021). MSC: 47B20 47B37 47A13 28A50 44A60 47-04 47A20 PDF BibTeX XML Cite \textit{R. E. Curto} et al., Integral Equations Oper. Theory 93, No. 6, Paper No. 64, 29 p. (2021; Zbl 07445582) Full Text: DOI arXiv OpenURL
Exner, George R.; Jung, Il Bong; Lee, Mi Ryeong Weighted shifts on directed trees with one branching vertex: \(n\)-contractivity and hyponormality. (English) Zbl 07445040 Osaka J. Math. 58, No. 4, 803-814 (2021). MSC: 47B20 47B37 05C20 PDF BibTeX XML Cite \textit{G. R. Exner} et al., Osaka J. Math. 58, No. 4, 803--814 (2021; Zbl 07445040) Full Text: Link OpenURL
Bachir, Ahmed; Segres, Abdelkader; Sayyaf, Nawal A. Range-kernel weak orthogonality of some elementary operators. (English) Zbl 07435624 Open Math. 19, 32-45 (2021). MSC: 47A30 47B20 47B47 47B10 PDF BibTeX XML Cite \textit{A. Bachir} et al., Open Math. 19, 32--45 (2021; Zbl 07435624) Full Text: DOI OpenURL
Putinar, Mihai Moment estimates of the cloud of a planar measure. (English) Zbl 1477.30033 Acta Appl. Math. 176, Paper No. 2, 26 p. (2021). MSC: 30E05 47B20 42C05 47N30 30C40 PDF BibTeX XML Cite \textit{M. Putinar}, Acta Appl. Math. 176, Paper No. 2, 26 p. (2021; Zbl 1477.30033) Full Text: DOI arXiv OpenURL
Baghdad, Abderrahim; Kaadoud, Mohamed Chraibi A new class intermediate between hyponormal operators and normaloid operators. (English) Zbl 07432545 Linear Multilinear Algebra 69, No. 15, 2926-2932 (2021). Reviewer: Tudor Bînzar (Timişoara) MSC: 47B20 47A12 47A30 47A63 47B15 47B47 PDF BibTeX XML Cite \textit{A. Baghdad} and \textit{M. C. Kaadoud}, Linear Multilinear Algebra 69, No. 15, 2926--2932 (2021; Zbl 07432545) Full Text: DOI OpenURL
Guesba, Messaoud; Ould Beiba, El Moctar; Ahmed Mahmoud, Sid Ahmed Ould Joint \(A\)-hyponormality of operators in semi-Hilbert spaces. (English) Zbl 1482.47036 Linear Multilinear Algebra 69, No. 15, 2888-2907 (2021). MSC: 47B20 47A13 PDF BibTeX XML Cite \textit{M. Guesba} et al., Linear Multilinear Algebra 69, No. 15, 2888--2907 (2021; Zbl 1482.47036) Full Text: DOI OpenURL
Putinar, Mihai Spectral analysis of 2D outlier layout. (English) Zbl 07428327 J. Spectr. Theory 11, No. 2, 821-845 (2021). MSC: 47B20 33C47 44A60 47N30 PDF BibTeX XML Cite \textit{M. Putinar}, J. Spectr. Theory 11, No. 2, 821--845 (2021; Zbl 07428327) Full Text: DOI arXiv OpenURL
Datt, Gopal; Pandey, Shesh Kumar Multivariate analogue of slant Toeplitz operators. (English) Zbl 1484.47051 Hacet. J. Math. Stat. 50, No. 3, 678-691 (2021). MSC: 47B35 47B20 46E30 46E35 PDF BibTeX XML Cite \textit{G. Datt} and \textit{S. K. Pandey}, Hacet. J. Math. Stat. 50, No. 3, 678--691 (2021; Zbl 1484.47051) Full Text: DOI OpenURL
Ahmad, Naeem; Mahmoud, Sid Ahmed Ould Mahmoud On the class of \(k\)-quasi-\((n,m)\)-power normal operators. (English) Zbl 1484.47034 Hacet. J. Math. Stat. 50, No. 2, 326-341 (2021). MSC: 47B20 47A80 PDF BibTeX XML Cite \textit{N. Ahmad} and \textit{S. A. O. M. Mahmoud}, Hacet. J. Math. Stat. 50, No. 2, 326--341 (2021; Zbl 1484.47034) Full Text: DOI OpenURL
Kośmider, Jakub The Wold-type decomposition for \(m\)-isometries. (English) Zbl 07419039 Bull. Malays. Math. Sci. Soc. (2) 44, No. 6, 4155-4174 (2021). MSC: 47B20 47B33 47B37 PDF BibTeX XML Cite \textit{J. Kośmider}, Bull. Malays. Math. Sci. Soc. (2) 44, No. 6, 4155--4174 (2021; Zbl 07419039) Full Text: DOI arXiv OpenURL
Ko, Eungil; Lee, Ji Eun; Nakazi, Takahiko Hyponormality of the dilation of truncated Toeplitz operators. (English) Zbl 07417860 Complex Var. Elliptic Equ. 66, No. 10, 1664-1675 (2021). MSC: 47B35 47B15 47B20 PDF BibTeX XML Cite \textit{E. Ko} et al., Complex Var. Elliptic Equ. 66, No. 10, 1664--1675 (2021; Zbl 07417860) Full Text: DOI OpenURL
Hoxha, Ilmi; Braha, Naim L. On \((n,k)\)-quasi class \(Q^\ast\) operators. (English) Zbl 07412535 J. Math. Inequal. 15, No. 3, 1003-1018 (2021). MSC: 47B20 47A80 47B37 PDF BibTeX XML Cite \textit{I. Hoxha} and \textit{N. L. Braha}, J. Math. Inequal. 15, No. 3, 1003--1018 (2021; Zbl 07412535) Full Text: DOI OpenURL
Ko, Eungil; Lee, Ji Eun; Lee, Mee-Jung On properties of \(C\)-normal operators. (English) Zbl 07408120 Banach J. Math. Anal. 15, No. 4, Paper No. 65, 17 p. (2021). MSC: 47A05 47B15 47B20 PDF BibTeX XML Cite \textit{E. Ko} et al., Banach J. Math. Anal. 15, No. 4, Paper No. 65, 17 p. (2021; Zbl 07408120) Full Text: DOI OpenURL
Le, Trieu; Simanek, Brian Hyponormal Toeplitz operators on weighted Bergman spaces. (English) Zbl 07405654 Integral Transforms Spec. Funct. 32, No. 5-8, 560-567 (2021). Reviewer: Nikolaj L. Vasilevskij (Ciudad de México) MSC: 47B20 47B15 47B35 47B38 PDF BibTeX XML Cite \textit{T. Le} and \textit{B. Simanek}, Integral Transforms Spec. Funct. 32, No. 5--8, 560--567 (2021; Zbl 07405654) Full Text: DOI arXiv OpenURL
Ko, Eungil On ampliation quasiaffine transforms of operators. (English) Zbl 07403048 Bull. Korean Math. Soc. 58, No. 3, 699-710 (2021). MSC: 47A11 47A10 47B20 PDF BibTeX XML Cite \textit{E. Ko}, Bull. Korean Math. Soc. 58, No. 3, 699--710 (2021; Zbl 07403048) Full Text: DOI OpenURL
Prasad, T.; Thampi, Sandra Mary Continuity of the spectrum and Weyl type theorems for extension of 2-isometric operators. (English) Zbl 07402101 Gulf J. Math. 10, No. 2, 1-8 (2021). MSC: 47A15 47B20 PDF BibTeX XML Cite \textit{T. Prasad} and \textit{S. M. Thampi}, Gulf J. Math. 10, No. 2, 1--8 (2021; Zbl 07402101) Full Text: Link OpenURL
Lauric, Vasile On a Kleinecke-Shirokov theorem. (English) Zbl 07396199 Czech. Math. J. 71, No. 3, 817-822 (2021). MSC: 47B47 47B10 47B20 PDF BibTeX XML Cite \textit{V. Lauric}, Czech. Math. J. 71, No. 3, 817--822 (2021; Zbl 07396199) Full Text: DOI OpenURL
Jabbarzadeh, M. R.; Emamalipour, H. On the dilation of a conditional operator. (English) Zbl 07394492 Linear Multilinear Algebra 69, No. 12, 2204-2219 (2021). MSC: 47B20 47B25 PDF BibTeX XML Cite \textit{M. R. Jabbarzadeh} and \textit{H. Emamalipour}, Linear Multilinear Algebra 69, No. 12, 2204--2219 (2021; Zbl 07394492) Full Text: DOI OpenURL
Lauric, Vasile The elementary operator and Fuglede-Putnam theorem for a class of essentially commuting almost normal operators with finite modulus of Hilbert-Schmidt quasitriangularity. (English) Zbl 07383952 Rend. Circ. Mat. Palermo (2) 70, No. 2, 741-752 (2021). Reviewer: Elhadj Dahia (Bou Saâda) MSC: 47B10 47B47 PDF BibTeX XML Cite \textit{V. Lauric}, Rend. Circ. Mat. Palermo (2) 70, No. 2, 741--752 (2021; Zbl 07383952) Full Text: DOI OpenURL
Bala, Neeru; Ramesh, G. A representation of hyponormal absolutely norm attaining operators. (English) Zbl 07382514 Bull. Sci. Math. 171, Article ID 103020, 15 p. (2021). MSC: 47A10 47B15 47B20 47A65 PDF BibTeX XML Cite \textit{N. Bala} and \textit{G. Ramesh}, Bull. Sci. Math. 171, Article ID 103020, 15 p. (2021; Zbl 07382514) Full Text: DOI arXiv OpenURL
Lomakina, E. N.; Nasyrova, M. G.; Nasyrov, V. V. The estimates of the approximation numbers of the Hardy operator acting in the Lorentz spaces in the case \(\max(r,s)\leq q\). (Russian. English summary) Zbl 07380796 Dal’nevost. Mat. Zh. 21, No. 1, 71-88 (2021). MSC: 47B06 47B20 46E30 47B38 PDF BibTeX XML Cite \textit{E. N. Lomakina} et al., Dal'nevost. Mat. Zh. 21, No. 1, 71--88 (2021; Zbl 07380796) Full Text: DOI MNR OpenURL
Sohrabi, M. Some properties of Moore-Penrose inverse of weighted composition operators. (English) Zbl 1483.47051 J. Linear Topol. Algebra 10, No. 2, 79-91 (2021). MSC: 47B33 47A05 47B20 PDF BibTeX XML Cite \textit{M. Sohrabi}, J. Linear Topol. Algebra 10, No. 2, 79--91 (2021; Zbl 1483.47051) Full Text: Link OpenURL
Thompson, Derek; McClatchey, Thaddeus; Holleman, Caleb Binormal, complex symmetric operators. (English) Zbl 07379859 Linear Multilinear Algebra 69, No. 9, 1705-1715 (2021). MSC: 47B20 PDF BibTeX XML Cite \textit{D. Thompson} et al., Linear Multilinear Algebra 69, No. 9, 1705--1715 (2021; Zbl 07379859) Full Text: DOI arXiv OpenURL
Hazarika, Munmun; Marik, Sougata Toeplitz and slant Toeplitz operators on the polydisk. (English) Zbl 1483.47052 Arab J. Math. Sci. 27, No. 1, 73-93 (2021). MSC: 47B35 47B20 PDF BibTeX XML Cite \textit{M. Hazarika} and \textit{S. Marik}, Arab J. Math. Sci. 27, No. 1, 73--93 (2021; Zbl 1483.47052) Full Text: DOI OpenURL
Sohrabi, M. Additive results for Moore-Penrose inverse of Lambert conditional operators. (English) Zbl 1483.47067 Anal. Math. 47, No. 2, 421-435 (2021). Reviewer: Takeaki Yamazaki (Kawagoe) MSC: 47B38 47B20 47A05 47A12 PDF BibTeX XML Cite \textit{M. Sohrabi}, Anal. Math. 47, No. 2, 421--435 (2021; Zbl 1483.47067) Full Text: DOI OpenURL
Sahoo, Satyajit; Das, Namita; Rout, Nirmal Chandra On Berezin number inequalities for operator matrices. (English) Zbl 07375761 Acta Math. Sin., Engl. Ser. 37, No. 6, 873-892 (2021). Reviewer: Minghua Lin (Xi’an) MSC: 47A30 47A08 47A12 47B20 PDF BibTeX XML Cite \textit{S. Sahoo} et al., Acta Math. Sin., Engl. Ser. 37, No. 6, 873--892 (2021; Zbl 07375761) Full Text: DOI OpenURL
Chen, Chung-Chuan; Kostić, Marko; Velinov, Daniel A note on recurrent strongly continuous semigroups of operators. (English) Zbl 07370955 Funct. Anal. Approx. Comput. 13, No. 1, 7-12 (2021). Reviewer: Angela Albanese (Lecce) MSC: 47A16 47D03 47B20 PDF BibTeX XML Cite \textit{C.-C. Chen} et al., Funct. Anal. Approx. Comput. 13, No. 1, 7--12 (2021; Zbl 07370955) Full Text: Link Link OpenURL
Mahmoud, Sid Ahmed Ould Ahmed; Alshammari, Hadi Obaid Joint \(m\)-quasihyponormal operators on a Hilbert space. (English) Zbl 07360835 Ann. Funct. Anal. 12, No. 3, Paper No. 42, 20 p. (2021). MSC: 47A05 47A10 47A15 PDF BibTeX XML Cite \textit{S. A. O. A. Mahmoud} and \textit{H. O. Alshammari}, Ann. Funct. Anal. 12, No. 3, Paper No. 42, 20 p. (2021; Zbl 07360835) Full Text: DOI OpenURL
Benhida, Chafiq; Curto, Raúl E.; Exner, George R. Conditional positive definiteness as a bridge between \(k\)-hyponormality and \(n\)-contractivity. (English) Zbl 07357660 Linear Algebra Appl. 625, 146-170 (2021). Reviewer: Tudor Bînzar (Timişoara) MSC: 47B20 47B37 44A60 PDF BibTeX XML Cite \textit{C. Benhida} et al., Linear Algebra Appl. 625, 146--170 (2021; Zbl 07357660) Full Text: DOI arXiv OpenURL
Hoxha, Ilmi; Braha, Naim L. Absolute-\((k, m)\)-paranormal and absolute-\((k^*,m)\)-paranormal weighted composition operators. (English) Zbl 07355139 Mediterr. J. Math. 18, No. 4, Paper No. 123, 21 p. (2021). MSC: 47B20 47A80 47B37 PDF BibTeX XML Cite \textit{I. Hoxha} and \textit{N. L. Braha}, Mediterr. J. Math. 18, No. 4, Paper No. 123, 21 p. (2021; Zbl 07355139) Full Text: DOI OpenURL
Jabbarzadeh, M. R.; Gheytaran, M. Weighted composition operators and their products on \(L^2(\Sigma)\). (English) Zbl 07354305 Math. Inequal. Appl. 24, No. 2, 291-305 (2021). MSC: 47B20 47B38 PDF BibTeX XML Cite \textit{M. R. Jabbarzadeh} and \textit{M. Gheytaran}, Math. Inequal. Appl. 24, No. 2, 291--305 (2021; Zbl 07354305) Full Text: DOI OpenURL
Pietrzycki, Paweł; Stochel, Jan Subnormal \(n\)th roots of quasinormal operators are quasinormal. (English) Zbl 1483.47041 J. Funct. Anal. 280, No. 12, Article ID 109001, 14 p. (2021); corrigendum ibid. 282, No. 1, Article ID 109260, 2 p. (2022). MSC: 47B20 47B15 47A63 44A60 PDF BibTeX XML Cite \textit{P. Pietrzycki} and \textit{J. Stochel}, J. Funct. Anal. 280, No. 12, Article ID 109001, 14 p. (2021; Zbl 1483.47041) Full Text: DOI arXiv OpenURL
Chavan, Sameer; Jabłoński, Zenon Jan; Jung, Il Bong; Stochel, Jan Taylor spectrum approach to Brownian-type operators with quasinormal entry. (English) Zbl 07334024 Ann. Mat. Pura Appl. (4) 200, No. 3, 881-922 (2021). MSC: 47B20 47B37 44A60 PDF BibTeX XML Cite \textit{S. Chavan} et al., Ann. Mat. Pura Appl. (4) 200, No. 3, 881--922 (2021; Zbl 07334024) Full Text: DOI arXiv OpenURL
Chō, Muneo; Hur, Injo; Lee, Ji Eun On the single-valued extension property of hyponormal operators on Banach spaces. (English) Zbl 07302527 Mediterr. J. Math. 18, No. 1, Paper No. 34, 11 p. (2021). Reviewer: Abdellatif Bourhim (Syracuse) MSC: 47A11 47B20 47B99 PDF BibTeX XML Cite \textit{M. Chō} et al., Mediterr. J. Math. 18, No. 1, Paper No. 34, 11 p. (2021; Zbl 07302527) Full Text: DOI OpenURL
Chō, Muneo; Beiba, El Moctar Ould; Mahmoud, Sid Ahmed Ould Ahmed \((n_1,\dots,n_p)\)-quasi-\(m\)-isometric commuting tuple of operators on a Hilbert space. (English) Zbl 07296604 Ann. Funct. Anal. 12, No. 1, Paper No. 4, 17 p. (2021). MSC: 47B15 47B20 47A15 PDF BibTeX XML Cite \textit{M. Chō} et al., Ann. Funct. Anal. 12, No. 1, Paper No. 4, 17 p. (2021; Zbl 07296604) Full Text: DOI OpenURL
Dharmarha, Preeti; Ram, Sonu A note on \((m, n)\)-paranormal operators. (English) Zbl 1463.47071 Electron. J. Math. Anal. Appl. 9, No. 1, 274-283 (2021). MSC: 47B20 47A10 47A05 PDF BibTeX XML Cite \textit{P. Dharmarha} and \textit{S. Ram}, Electron. J. Math. Anal. Appl. 9, No. 1, 274--283 (2021; Zbl 1463.47071) Full Text: Link OpenURL
Safshekan, Rahim; Farokhinia, Ali On some general inequalities related to operator AM-GM inequality. (English) Zbl 07541435 Filomat 34, No. 11, 3601-3607 (2020). MSC: 47A63 47A30 47B20 PDF BibTeX XML Cite \textit{R. Safshekan} and \textit{A. Farokhinia}, Filomat 34, No. 11, 3601--3607 (2020; Zbl 07541435) Full Text: DOI OpenURL
Bachir, Ahmed; Senthilkumar, Durairaj; Sayyaf, Nawal Ali A Fuglede-Putnam property for \(N\)-class \(A(k)\) operators. (English) Zbl 1484.47002 AIMS Math. 5, No. 6, 7458-7466 (2020). MSC: 47A05 47A30 47B47 PDF BibTeX XML Cite \textit{A. Bachir} et al., AIMS Math. 5, No. 6, 7458--7466 (2020; Zbl 1484.47002) Full Text: DOI OpenURL
Sharief, Yahia Mohammed On \(P\)-hyponormal composition operators. (English) Zbl 07477112 Univers. J. Math. Math. Sci. 13, No. 2, 85-96 (2020). MSC: 47B20 PDF BibTeX XML Cite \textit{Y. M. Sharief}, Univers. J. Math. Math. Sci. 13, No. 2, 85--96 (2020; Zbl 07477112) Full Text: DOI OpenURL
Shen, Hailong; Li, Chunji Which weighted shifts are flat? (English) Zbl 1485.47052 J. Appl. Math. Inform. 38, No. 5-6, 579-590 (2020). MSC: 47B37 47B20 PDF BibTeX XML Cite \textit{H. Shen} and \textit{C. Li}, J. Appl. Math. Inform. 38, No. 5--6, 579--590 (2020; Zbl 1485.47052) Full Text: DOI OpenURL
Dana, M.; Yousefi, R. Generalizations of some classical theorems to \(D\)-normal operators on Hilbert spaces. (English) Zbl 07460876 J. Inequal. Appl. 2020, Paper No. 101, 9 p. (2020). MSC: 47B15 47B20 47A05 15A09 PDF BibTeX XML Cite \textit{M. Dana} and \textit{R. Yousefi}, J. Inequal. Appl. 2020, Paper No. 101, 9 p. (2020; Zbl 07460876) Full Text: DOI OpenURL
Nabavi Sales, S. M. S. On the hyponormal property of operators. (English) Zbl 07426481 Iran. J. Math. Sci. Inform. 15, No. 2, 21-30 (2020). Reviewer: Eungil Ko (Seoul) MSC: 47B20 PDF BibTeX XML Cite \textit{S. M. S. Nabavi Sales}, Iran. J. Math. Sci. Inform. 15, No. 2, 21--30 (2020; Zbl 07426481) Full Text: Link OpenURL
Estaremi, Y. The composition of conditional expectation and multiplication operators. (English) Zbl 07407611 Filali, Mahmoud (ed.), Banach algebras and applications. Proceedings of the 23rd international conference, University of Oulu, Finland, November 3–11, 2017. Berlin: De Gruyter. De Gruyter Proc. Math., 47-56 (2020). MSC: 47B20 47B38 PDF BibTeX XML Cite \textit{Y. Estaremi}, in: Banach algebras and applications. Proceedings of the 23rd international conference, University of Oulu, Finland, November 3--11, 2017. Berlin: De Gruyter. 47--56 (2020; Zbl 07407611) Full Text: DOI OpenURL
Kubrusly, C. S.; Duggal, B. P. Asymptotic limits, Banach limits and Cesáro means. (English) Zbl 07377897 Adv. Math. Sci. Appl. 29, No. 1, 145-170 (2020). MSC: 47A30 47A45 47A62 47B20 PDF BibTeX XML Cite \textit{C. S. Kubrusly} and \textit{B. P. Duggal}, Adv. Math. Sci. Appl. 29, No. 1, 145--170 (2020; Zbl 07377897) Full Text: arXiv OpenURL
Gustafsson, Björn; Putinar, Mihai Finite term relations for the exponential orthogonal polynomials. (English) Zbl 1468.33015 Math. Model. Nat. Phenom. 15, Paper No. 5, 25 p. (2020). MSC: 33C47 32A26 47B20 47B35 PDF BibTeX XML Cite \textit{B. Gustafsson} and \textit{M. Putinar}, Math. Model. Nat. Phenom. 15, Paper No. 5, 25 p. (2020; Zbl 1468.33015) Full Text: DOI arXiv OpenURL
Sadraoui, Houcine; Guediri, Mohammed Hyponormality of Toeplitz operators on the Bergman space of an annulus. (English) Zbl 07365397 Rev. Unión Mat. Argent. 61, No. 2, 303-313 (2020). MSC: 47B35 47B20 15B48 PDF BibTeX XML Cite \textit{H. Sadraoui} and \textit{M. Guediri}, Rev. Unión Mat. Argent. 61, No. 2, 303--313 (2020; Zbl 07365397) Full Text: DOI OpenURL
Estaremi, Y. On the partial normality of a class of bounded operators. (English) Zbl 1474.47056 Mat. Vesn. 72, No. 3, 207-214 (2020). MSC: 47B20 47A10 PDF BibTeX XML Cite \textit{Y. Estaremi}, Mat. Vesn. 72, No. 3, 207--214 (2020; Zbl 1474.47056) Full Text: EMIS Link Link OpenURL
Duggal, B. P.; Kim, I. H. On power Drazin normal and Drazin quasi-normal Hilbert space operators. (English) Zbl 1482.47033 Oper. Matrices 14, No. 2, 523-533 (2020). MSC: 47B15 47B20 47A05 PDF BibTeX XML Cite \textit{B. P. Duggal} and \textit{I. H. Kim}, Oper. Matrices 14, No. 2, 523--533 (2020; Zbl 1482.47033) Full Text: DOI arXiv OpenURL
Ahmed, Beinane Sid; Mahmoud, Sid Ahmed Ould Ahmed On the class of \(n\)-power \(D\)-\(m\)-quasi-normal operators on Hilbert spaces. (English) Zbl 07347976 Oper. Matrices 14, No. 1, 159-174 (2020). MSC: 47B15 47B20 47A15 PDF BibTeX XML Cite \textit{B. S. Ahmed} and \textit{S. A. O. A. Mahmoud}, Oper. Matrices 14, No. 1, 159--174 (2020; Zbl 07347976) Full Text: DOI OpenURL
Bikchentaev, Airat Paranormal measurable operators affiliated with a semifinite von Neumann algebra. II. (English) Zbl 1476.46066 Positivity 24, No. 5, 1487-1501 (2020). MSC: 46L51 46L10 47C15 47B20 PDF BibTeX XML Cite \textit{A. Bikchentaev}, Positivity 24, No. 5, 1487--1501 (2020; Zbl 1476.46066) Full Text: DOI OpenURL
Naimi, Mehdi; Benharrat, Mohammed Anderson’s theorem for some class of operators. (English) Zbl 1474.47021 Khayyam J. Math. 6, No. 2, 236-242 (2020). MSC: 47A12 47B02 PDF BibTeX XML Cite \textit{M. Naimi} and \textit{M. Benharrat}, Khayyam J. Math. 6, No. 2, 236--242 (2020; Zbl 1474.47021) Full Text: DOI OpenURL
Mecheri, Salah; Braha, Naim L. Polaroid operators and Weyl type theorems. (English) Zbl 1483.47040 Asian-Eur. J. Math. 13, No. 7, Article ID 2050123, 15 p. (2020). MSC: 47B20 47A10 47A68 PDF BibTeX XML Cite \textit{S. Mecheri} and \textit{N. L. Braha}, Asian-Eur. J. Math. 13, No. 7, Article ID 2050123, 15 p. (2020; Zbl 1483.47040) Full Text: DOI OpenURL
Prasad, T. Class \(p\)-\(wA(s,t)\) composition operators. (English) Zbl 07337142 Asian-Eur. J. Math. 13, No. 5, Article ID 2050086, 10 p. (2020). MSC: 47B20 47B38 PDF BibTeX XML Cite \textit{T. Prasad}, Asian-Eur. J. Math. 13, No. 5, Article ID 2050086, 10 p. (2020; Zbl 07337142) Full Text: DOI OpenURL
Prasad, T. Class \(p\)-\(wA(s,t)\) operators and invariant subspaces. (English) Zbl 1481.47033 Acta Sci. Math. 86, No. 3-4, 671-679 (2020). Reviewer: Yuri I. Karlovich (Cuernavaca) MSC: 47B20 47A15 PDF BibTeX XML Cite \textit{T. Prasad}, Acta Sci. Math. 86, No. 3--4, 671--679 (2020; Zbl 1481.47033) Full Text: DOI OpenURL
Lauric, Vasile A generalized Fuglede-Putnam theorem for a class of almost normal tuples of operators with finite modulus of Hilbert-Schmidt quasitriangularity. (English) Zbl 1474.47058 Acta Sci. Math. 86, No. 3-4, 563-575 (2020). Reviewer: Mihai Putinar (Santa Barbara) MSC: 47B20 47B10 47B47 PDF BibTeX XML Cite \textit{V. Lauric}, Acta Sci. Math. 86, No. 3--4, 563--575 (2020; Zbl 1474.47058) Full Text: DOI OpenURL
Kérchy, László Pluquasisimilar Hilbert space operators. (English) Zbl 1481.47024 Acta Sci. Math. 86, No. 3-4, 503-520 (2020). MSC: 47B02 47A15 47A45 47A65 47B20 PDF BibTeX XML Cite \textit{L. Kérchy}, Acta Sci. Math. 86, No. 3--4, 503--520 (2020; Zbl 1481.47024) Full Text: DOI OpenURL
Bachir, A.; Prasad, T. Fuglede-Putnam theorem for \((\alpha,\beta)\)-normal operators. (English) Zbl 07321727 Rend. Circ. Mat. Palermo (2) 69, No. 3, 1243-1249 (2020). MSC: 47B20 47A10 PDF BibTeX XML Cite \textit{A. Bachir} and \textit{T. Prasad}, Rend. Circ. Mat. Palermo (2) 69, No. 3, 1243--1249 (2020; Zbl 07321727) Full Text: DOI OpenURL
Ben Taher, Rajae; Rachidi, Mustapha 2-variable weighted shifts and recursiveness: toral Aluthge transform and subnormality. (English) Zbl 07317702 J. Anal. 28, No. 4, 1107-1126 (2020). MSC: 47B37 47B20 30C15 44A60 11B39 PDF BibTeX XML Cite \textit{R. Ben Taher} and \textit{M. Rachidi}, J. Anal. 28, No. 4, 1107--1126 (2020; Zbl 07317702) Full Text: DOI OpenURL
Lee, Sang Hoon; Lee, Woo Young; Yoon, Jasang Subnormality of powers of multivariable weighted shifts. (English) Zbl 07300489 J. Funct. Spaces 2020, Article ID 5678795, 11 p. (2020). Reviewer: Sameer Chavan (Kanpur) MSC: 47B20 PDF BibTeX XML Cite \textit{S. H. Lee} et al., J. Funct. Spaces 2020, Article ID 5678795, 11 p. (2020; Zbl 07300489) Full Text: DOI OpenURL
Benhida, Chafiq; Curto, Raul E. The extended Aluthge transform. (English) Zbl 07299673 Curto, Raul E. (ed.) et al., Operator theory, operator algebras and their interactions with geometry and topology. Ronald G. Douglas memorial volume. Proceedings of the international workshop on operator theory and applications (IWOTA 2018), Shanghai, China, July 23–27, 2018. Cham: Birkhäuser. Oper. Theory: Adv. Appl. 278, 55-76 (2020). Reviewer: Takeaki Yamazaki (Kawagoe) MSC: 47B02 47B20 PDF BibTeX XML Cite \textit{C. Benhida} and \textit{R. E. Curto}, Oper. Theory: Adv. Appl. 278, 55--76 (2020; Zbl 07299673) Full Text: DOI OpenURL
Sid Ahmed, Ould Ahmed Mahmoud; Chō, Muneo; Lee, Jieun On \(n\)-quasi-\((m, C)\)-isometric operators. (English) Zbl 07299233 Linear Multilinear Algebra 68, No. 5, 1001-1020 (2020). MSC: 47B20 47B99 PDF BibTeX XML Cite \textit{O. A. M. Sid Ahmed} et al., Linear Multilinear Algebra 68, No. 5, 1001--1020 (2020; Zbl 07299233) Full Text: DOI OpenURL
Lauric, Vasile The trace of the commutator of the Cesàro operator and a compact operator. (English) Zbl 07289631 Math. Slovaca 70, No. 1, 147-150 (2020). MSC: 47B20 47B37 PDF BibTeX XML Cite \textit{V. Lauric}, Math. Slovaca 70, No. 1, 147--150 (2020; Zbl 07289631) Full Text: DOI OpenURL