Found 33 Documents (Results 1–33)
Approximation of differential operators with boundary conditions. (English. Russian original) Zbl 1525.65019
Comput. Math. Math. Phys. 63, No. 8, 1381-1400 (2023); translation from Zh. Vychisl. Mat. Mat. Fiz. 63, No. 8, 1251-1271 (2023).
Invertibility of matrix type operators of infinite order with exponential off-diagonal decay. (English) Zbl 1430.15005
Reviewer: José Bonet (Valencia)
A study of resolvent set for a class of band operators with matrix elements. (English) Zbl 1465.47025
Spectral properties for matrix algebras. (English) Zbl 1316.15020
Reviewer: Alan L. Andrew (Bundoora)
Norm-controlled inversion in smooth Banach algebras, II. (English) Zbl 1303.41019
Reviewer: T. D. Narang (Amritsar)
Noncommutative approximation: inverse-closed subalgebras and off-diagonal decay of matrices. (English) Zbl 1210.41010
Reviewer: T. D. Narang (Amritsar)
Making almost commuting matrices commute. (English) Zbl 1189.15018
Reviewer: Mihail Voicu (Iaşi)
Generalized Jacobi operators in Krein spaces. (English) Zbl 1154.47026
Reviewer: Adhemar Bultheel (Leuven)
Limit points of eigenvalues of truncated unbounded tridiagonal operators. (English) Zbl 1130.47002
Reviewer: Petru A. Cojuhari (Kraków)
Symmetry and inverse-closedness of matrix algebras and functional calculus for infinite matrices. (English) Zbl 1105.46032
Reviewer: Richard M. Timoney (Dublin)
Non-strictly convex minimization over the fixed point set of an asymptotically shrinking nonexpansive mapping. (English) Zbl 1178.90346
Four short stories about Toeplitz matrix calculations. (English) Zbl 0999.65026
Reviewer: Petko Hr.Petkov (Sofia)
Rates of convergence for the approximation of dual shift-invariant systems in \(\ell^2 (\mathbb{Z})\). (English) Zbl 0981.42020
On relative Hausdorff measures of noncompactness and relative Chebyshev radii in Banach spaces. (English) Zbl 0855.41028
Abstract harmonic analysis and asymptotic estimates of elements of inverse matrices. (English. Russian original) Zbl 0805.43002
Math. Notes 52, No. 2, 764-771 (1992); translation from Mat. Zametki 52, No. 2, 17-26 (1992).
Reviewer: M.Hasumi (Mito / Ibaraki)
Iteration methods for convexly constrained ill-posed problems in Hilbert space. (English) Zbl 0769.65026
Reviewer: Yu Wenhuan (Tianjin)
Inner \(M\)-ideals in Banach algebras. (English) Zbl 0726.46030
Reviewer: Wend Werner (Paderborn)
Wiener’s theorem and the asymptotic estimates of the elements of inverse matrices. (English. Russian original) Zbl 0728.47021
Funct. Anal. Appl. 24, No. 3, 222-224 (1990); translation from Funkts. Anal. Prilozh. 24, No. 3, 64-65 (1990).
Reviewer: M.Kutkut (Jeddah)
MSC:
47B37
Best approximation of a nonnormal operator in the trace norm. (English) Zbl 0658.47024
Reviewer: P.C.Sinha
On the asymptotic distribution of eigenvalues of banded matrices. (English) Zbl 0646.15004
Reviewer: E.Kreyszig
An extremal problem concerning differential operators and applications to optimal reconstruction. (English) Zbl 0496.41023
Decomposition algebras of Riesz operators. (English) Zbl 0448.47011
MSC:
47B06
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