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Found 119 Documents (Results 1–100)

Sequence of linear operators converging in the generalized sense and its essential pseudospectra. (English) Zbl 07361676

Jeribi, Aref (ed.), Operator theory. Proceedings of the international conference on operator theory, Hammamet, Tunisia, April 30 – May 3, 2018. Berlin: De Gruyter. De Gruyter Proc. Math., 147-155 (2021).
MSC:  47A53 39B42
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Birkhoff-James orthogonality reversing property and its stability. (English) Zbl 1447.39016

Brzdęk, Janusz (ed.) et al., Ulam type stability. Based on the conferences on Ulam type stability (CUTS), Cluj-Napoca, Romania, July 4–9, 2016 and Timisoara, Romania, October 8–13, 2018. Cham: Springer. 57-71 (2019).
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A boundary-value problem for a first-order hyperbolic system in a two-dimensional domain. (English. Russian original) Zbl 1377.35195

Izv. Math. 81, No. 3, 542-567 (2017); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 81, No. 3, 83-108 (2017).
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Rational matrix solutions of a Bezout type equation on the half-plane. (English) Zbl 1293.47028

Kaashoek, Marinus A. (ed.) et al., Advances in structured operator theory and related areas. The Leonid Lerer anniversary volume on the occasion of his 70th birthday. Basel: Birkhäuser/Springer (ISBN 978-3-0348-0638-1/hbk; 978-3-0348-0639-8/ebook). Operator Theory: Advances and Applications 237, 145-160 (2013).
Reviewer: Trieu Le (Toledo)
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A majorant criterion for the total preservation of global solvability of controlled functional operator equation. (English. Russian original) Zbl 1244.47064

Russ. Math. 55, No. 3, 85-95 (2011); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2011, No. 3, 95-107 (2011).
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Complete quasi-wandering sets and kernels of functional operators. (English) Zbl 1264.47025

Duduchava, Roland (ed.) et al., Recent trends in Toeplitz and pseudodifferential operators. The Nikolai Vasilevskii anniversary volume. Basel: Birkhäuser (ISBN 978-3-0346-0547-2/hbk; 978-3-0346-0548-9/ebook). Operator Theory: Advances and Applications 210, 37-42 (2010).
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Pointwise estimation of the difference of the solutions of a controlled functional operator equation in Lebesgue spaces. (English. Russian original) Zbl 1235.39016

Math. Notes 88, No. 2, 262-274 (2010); translation from Mat. Zametki 88, No. 2, 288-302 (2010).
MSC:  39B42 45N05 47H30
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Jacobi block matrices with constant matrix terms. (English) Zbl 1085.47036

Janas, Jan (ed.) et al., Spectral methods for operators of mathematical physics. Proceedings of the international conference on operator theory and its applications in mathematical physics, OTAMP, Bedlewo, Poland, 2002. Basel: Birkhäuser (ISBN 3-7643-7133-1/hbk). Operator Theory: Advances and Applications 154, 233-238 (2004).
MSC:  47B36 39A70 39B42
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On linear operator pencils and inclusions of images of balls. (English) Zbl 1057.47076

Kamińska, Anna (ed.), Trends in Banach spaces and operator theory. A conference on trends in Banach spaces and operator theory, Memphis, TN, USA, October 5–9, 2001. Providence, RI: American Mathematical Society (AMS) (ISBN 0-8218-3234-4/pbk). Contemp. Math. 321, 115-124 (2003).
MSC:  47L07 39B42
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On functional equations with operator coefficients. (English) Zbl 1052.39029

Samko, Stefan (ed.) et al., Factorization, singular operators and related problems. Proceedings of the conference in honor of Professor Georgii Litvinchuk, Funchal, Madeira, Portugal, January 28–February 1, 2002. Dordrecht: Kluwer Academic Publishers (ISBN 1-4020-1407-4/hbk). 13-23 (2003).
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Laurent series for the inversion of perturbed linear operators on Hilbert space. (English) Zbl 1007.47008

Rubinov, Alexander (ed.) et al., Optimization and related topics. Selected papers of the 6th Australian optimization day miniconference, Ballarat, Australia, July 16, 1999, and the special sessions on nonlinear dynamics and optimization and operations research - methods and applications, Melbourne, Australia, July 11-15, 1999 (part of the joint meeting of the American Mathematical Society and Australian Mathematical Society). Dordrecht: Kluwer Academic Publishers. Appl. Optim. 47, 325-342 (2001).
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On the spectrum of unbounded off-diagonal \(2\times 2\)-operator matrices in Banach spaces. (English) Zbl 0994.47005

Dijksma, A. (ed.) et al., Recent advances in operator theory. The Israel Gohberg anniversary volume. Proceedings of the international workshop on operator theory and its applications, IWOTA-98, Groningen, Netherlands, June 30-July 3, 1998. Basel: Birkhäuser. Oper. Theory, Adv. Appl. 124, 243-266 (2001).
MSC:  47A10 39B42 47A25
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