Found 119 Documents (Results 1–100)
On Futledge-Putnam-Rosenblum theorem for locally \(C^*\)-algebras. (English) Zbl 1491.46047
Abel, Mart (ed.), Proceedings of the international conference on topological algebras and their applications, ICTAA 2021. In the memory of late Professor Mohamed (Hha) Oudadess, virtual conference, July 7–9, 2021. Tartu: Estonian Mathematical Society. Math. Stud., Tartu 8, 99-108 (2021).
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
Reviewer: Elhadj Dahia (Bou Saâda)
Generalizations of some classical theorems to \(D\)-normal operators on Hilbert spaces. (English) Zbl 1487.47037
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
Reviewer: Mihai Putinar (Santa Barbara)
Fuglede-Putnam type theorems via the generalized second Aluthge transform. (English) Zbl 1441.47028
Reviewer: Farida Lombarkia (Batna)
MSC:
47B20
Fuglede-Putnam type theorems for \((p, k)\)-quasihyponormal operators via hyponormal operators. (English) Zbl 1499.47013
Generalized Fuglede-Putnam theorem and \(m\)-quasi-class \(A(k)\) operators. (English) Zbl 1474.47059
Fuglede-Putnam theorem and quasisimilarity of class \(p-wA(s,t)\) operators. (English) Zbl 1517.47035
Some results on the classes of D-normal operators and n-power D-normal operators. (English) Zbl 1506.47029
On commutator of generalized Aluthge transformations and Fuglede-Putnam theorem. (English) Zbl 1503.47030
Quasinormality and Fuglede-Putnam theorem for \((s,p)-w\)-hyponormal operators. (English) Zbl 06766953
Conditions implying commutativity of unbounded self-adjoint operators and related topics. (English) Zbl 1399.47079
Reviewer: Michael Perelmuter (Kyïv)
Relative commutant of an unbounded operator affiliated with a finite von Neumann algebra. (English) Zbl 1399.47113
Reviewer: Peter P. Zabreĭko (Minsk)
A generalization of the Fuglede-Putnam theorem to unbounded operators. (English) Zbl 1371.47006
MSC:
47B15
Some properties of \((p,k)\)-quasiposinormal operators. (English) Zbl 1367.47028
Reviewer: Tudor Bînzar (Timişoara) (MR3367008)
Fuglede-Putnam theorem in algebras with involutions. (English. Russian original) Zbl 1342.47058
Math. Notes 98, No. 4, 537-549 (2015); translation from Mat. Zametki 98, No. 4, 483-497 (2015).
MSC:
47C10
On Fuglede-Putnam properties. (English) Zbl 1325.47081
Fuglede-Putnam theorem and quasi-nilpotent part of \(n\)-power normal operators. (English) Zbl 1323.47023
MSC:
47B20
On properties for \(k\)-quasi-\(*\)-class A contractions. (Chinese. English summary) Zbl 1324.47043
Generalizations of Kaplansky’s theorem involving unbounded linear operators. (English) Zbl 1447.47028
Reviewer: Eungil Ko (Seoul)
Weyl’s theorem, tensor product, Fuglede-Putnam theorem and continuity spectrum for \(k\)-quasi class \(\mathcal{A}^{\ast}_{n}\) operators. (English) Zbl 1305.47017
Reviewer: Janko Bračič (Ljubljana)
Fuglede-Putnam type theorems via the generalized Aluthge transform. (English) Zbl 1314.47033
Reviewer: Janko Bračič (Ljubljana)
Commutativity up to a factor for bounded and unbounded operators. (English) Zbl 1310.47029
Reviewer: Michael Perelmuter (Kyïv)
Note on Fuglede-Putnam-Rosenblum’s commutativity result. (English) Zbl 1304.46044
Abel, Mart (ed.), Proceedings of the international conference on topological algebras and their applications, ICTAA 2013, Tartu, Estonia, May 30 – June 2, 2013 to celebrate the 70th birthday of Mati Abel. Tartu: Estonian Mathematical Society (ISBN 978-9949-32-499-6/pbk). Mathematics Studies (Tartu) 6, 134-138 (2014).
On \(\ast \)-class A contractions. (English) Zbl 1290.47022
Reviewer: Takeaki Yamazaki (Kawagoe)
On the normality of the unbounded product of two normal operators. (English) Zbl 1293.47004
Reviewer: Sameer Chavan (Kanpur)
Fuglede-Putnam type theorems via the Aluthge transform. (English) Zbl 1290.47023
Reviewer: Takeaki Yamazaki (Kawagoe)
A note on the Fuglede-Putnam theorem. (English) Zbl 1280.47034
Reviewer: Mohammed Hichem Mortad (Oran)
Fuglede-Putnam theorem for \(w\)-hyponormal or \(\mathcal{Y}\) class operators. (English) Zbl 1261.47029
An all-unbounded-operator version of the Fuglede-Putnam theorem. (English) Zbl 1325.47003
Reviewer: Miguel Lacruz (Sevilla)
Class \(wA(s,t)\) operators and quasisimilarity. (English) Zbl 1276.47028
Reviewer: Sameer Chavan (Kanpur)
On Wold-type decomposition. (English) Zbl 1254.47021
Reviewer: Michal Zajac (Bratislava)
Products and sums of bounded and unbounded normal operators: Fuglede-Putnam versus Embry. (English) Zbl 1262.47008
Reviewer: Cătălin Badea (Villeneuve d’Ascq)
The Fuglede-Putnam theorem and Putnam’s inequality for quasi-class (A, k) operators. (English) Zbl 1219.47036
Some conditions on non-normal operators which imply normality. (English) Zbl 1254.47022
Reviewer: Janko Bračič (Ljubljana)
MSC:
47B20
Similarities involving unbounded normal operators. (English) Zbl 1206.47006
Reviewer: Shanli Sun (Beijing)
Commutativity up to a factor: more results and the unbounded case. (English) Zbl 1216.47002
Reviewer: Bilender P. Allahverdiev (Isparta)
An extension of the Fuglede-Putnam’s theorem to class A operators. (English) Zbl 1198.47038
Reviewer: Takeaki Yamazaki (Yokohama)
Fuglede-Putnam theorem for \(log\)-hyponormal or class \(\mathcal Y\) operators. (English) Zbl 1229.47034
On relaxation normality in the Fuglede-Putnam theorem for a quasi-class \(A\) operators. (English) Zbl 1192.47019
Another version of Fuglede-Putnam theorem. (English) Zbl 1207.47003
Reviewer: Abdellatif Bourhim (Syracuse)
On extensions of some Fuglede-Putnam type theorems involving \((p,k)\)-quasihyponormal, spectral, and dominant operators. (On extensions of some Flugede-Putnam type theorems involving \((p,k)\)-quasihyponormal, spectral, and dominant operators.) (English) Zbl 1177.47031
Reviewer: Jiangtao Yuan (Henan)
On the generalized Fuglede-Putnam theorem. (English) Zbl 1189.47023
Reviewer: Jiangtao Yuan (Henan)
On class \(wF(p,r,q)\) operators and quasisimilarity. (English) Zbl 1138.47013
Reviewer: Željko Čučković (Toledo)
On the converse of Anderson’s theorem. (English) Zbl 1121.47026
Reviewer: Yang Dachun (Beijing)
Fuglede-Putnam theorem for \(p\)-hyponormal or class \({\mathcal Y}\) operators. (English) Zbl 1135.47018
Reviewer: Abdellatif Bourhim (Québec)
On the range kernel orthogonality and \(p\)-symmetric operators. (English) Zbl 1112.47026
Reviewer: Khristo N. Boyadzhiev (Ada)
Elementary operators on Banach algebras and Fourier transform. (English) Zbl 1094.47038
Reviewer: Vladimir V. Peller (East Lansing)
Generalized derivation and double operator integrals. (English) Zbl 1102.47022
Reviewer: Armando R. Villena (Granada)
An extension of the Fuglede–Putnam theorem to \((p,k)\)-quasihyponormal operators. (English) Zbl 1101.47024
Reviewer: Bebe Prunaru (Bucureşti)
Generalized derivation. (English) Zbl 1092.47024
Reviewer: Wang Gongbao (Wuhan)
On \((p,k)\)-quasihyponormal operators. (English) Zbl 1080.47023
Reviewer: Yufeng Lu (Dalian)
On quasisimilarity for log-hyponormal operators. (English) Zbl 1076.47014
Reviewer: Zenon J. Jabłoński (Kraków)
Fuglede-Putnam’s theorem for \(p\)-hyponormal or \(\log\)-hyponormal operators. (English) Zbl 1048.47013
Reviewer: Mihai Putinar (Santa Barbara)
An extension of the Fuglede-Putnam theorem to \(p\)-quasihyponormal operators. (English) Zbl 0915.47018
Intrinsic proof for real analogue of Fuglede Putnam Rosenblum theorem. (English) Zbl 0821.46068
MSC:
46L05
A Hilbert-Schmidt norm equality associated with the Fuglede-Putnam- Rosenblum’s type theorem for generalized multipliers. (English) Zbl 0834.47016
Reviewer: S.V.Kislyakov (St.Peterburg)
Spectral synthesis and the Fuglede-Putnam-Rosenblum theorem. (English. Russian original) Zbl 0790.47018
J. Sov. Math. 58, No. 4, 312-318 (1992); translation from Teor. Funkts., Funkts. Anal. Prilozh. 54, 25-36 (1990).
Reviewer: S.Aliou Lo (Dakar)
On extensions of Fuglede-Putnam theorem. (English) Zbl 0638.47020
Reviewer: T.Yoshino
A class of hyponormal operators and \(weak^*\)-continuity of hermitian operators. (English) Zbl 0654.47011
Reviewer: E.Martin-Peinador
On an asymptotic property of commutators in the Banach algebra. (Russian) Zbl 0651.46049
Reviewer: B.Thalheim
Commuting one-parameter groups of operators, operator and functional inequalities and the Fudglede-Putnam theorem. (English) Zbl 0575.47031
Commuting \(C_ 0\) groups and the Fuglede-Putnam theorem. (English) Zbl 0537.47022
Stud. Math. (to appear).
On asymptotic properties of commutators for bounded operators in the strongest operator topology. (Russian) Zbl 0599.47031
MSC:
47B20
Some commutativity results. (English) Zbl 0563.47017
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