Found 47,259 Documents (Results 1–100)

Characterizations of a complex symmetric truncated backward shift type operator matrix and its transforms. (English)Zbl 07625262

MSC:  47A05 47A10 47A11
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Interpolating $$d$$-tuples of matrices. (English)Zbl 07624128

MSC:  47A56 46E22 30E05
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MSC:  47Axx
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Hammocks to visualize the support of finitely presented functors. (English)Zbl 07622350

MSC:  16G70 16E05 47A15
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Anderson’s theorem and $$A$$-spectral radius bounds for semi-Hilbertian space operators. (English)Zbl 07621066

MSC:  47A12 47A30 47A63
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Norm inequalities involving the weighted numerical radii of operators. (English)Zbl 07621065

MSC:  47A12 47A30 47B10
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Quantitative results for banded Toeplitz matrices subject to random and deterministic perturbations. (English)Zbl 07621064

MSC:  15B05 15B52 47A55
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Corrigendum to: “On the eigenvalues of operators with gaps. Application to Dirac operators”. (English)Zbl 07616868

MSC:  47A10 47B25 47A75 49R50 81Q10 65L60
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MSC:  47Axx
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Hypercyclic composition operators with automorphisms of the upper half-plane. (English)Zbl 07616159

MSC:  47Bxx 47Axx
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Higher derivatives of operator functions in ideals of von Neumann algebras. (English)Zbl 07616147

MSC:  47Axx 46Gxx 47Bxx
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The numerical radius and positivity of block matrices. (English)Zbl 07613305

MSC:  47A12 47A20 47B65
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Pseudo $$S$$-spectra of special operators in quaternionic Hilbert spaces. (English)Zbl 07613299

MSC:  47A10 47A30 47B20
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Symmetric matrix means. (English)Zbl 07613288

MSC:  47A64 15A18 15A15
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A lower bound for the spectral radius of complex matrices. (English)Zbl 07613283

MSC:  15A18 15A42 47A12
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Axially harmonic functions and the harmonic functional calculus on the $$S$$-spectrum. (English)Zbl 07610105

MSC:  47A10 47A60
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Posinormal composition operators on $$H^2$$. (English)Zbl 07610073

MSC:  47Bxx 47Axx 15Axx
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Jumping flatness and Aluthge transform of recursive weighted shifts. (English)Zbl 07601363

MSC:  47Bxx 44Axx 47Axx
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On the relation between Hurwitz stability of matrix polynomials and matrix-valued Stieltjes functions. (English)Zbl 07596837

MSC:  47A56 15B57 30C15
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Towards a general $$\mathcal{F}$$-resolvent equation and Riesz projectors. (English)Zbl 07595154

MSC:  30Gxx 47Axx 47-XX
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Norms of polynomials of the Volterra operator. (English)Zbl 07595140

MSC:  47Axx 47Gxx 47Bxx
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Operator theory on noncommutative polydomains. II. (English)Zbl 07590514

MSC:  47Axx 46Lxx 32Axx
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Numerical radius and Berezin number inequality. (English)Zbl 07590505

MSC:  47Axx 47Bxx 47-XX
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On the nonlinear factorization equation in a normed ring. (English. Russian original)Zbl 07627978

J. Contemp. Math. Anal., Armen. Acad. Sci. 57, No. 5, 276-282 (2022); translation from Izv. Nats. Akad. Nauk Armen., Mat. 57, No. 5, 15-24 (2022).
MSC:  47A68 46N20
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Banach-Steinhaus theorem for linear relations on asymmetric normed spaces. (English)Zbl 07627748

MSC:  47A06 46E10
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Essentially iso-retractable modules and rings. (English)Zbl 07627735

MSC:  46F05 46H30 47A60
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On estimating some distances involving operator entropies via Riemannian metric. (English)Zbl 07626848

MSC:  54C70 47A63
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Local subspace transitivity criterion. (English)Zbl 07626843

MSC:  47A16 37B99 54H99
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Modifying the shooting model for solving equilibrium problems. (English. Russian original)Zbl 07626312

Mosc. Univ. Comput. Math. Cybern. 46, No. 3, 163-170 (2022); translation from Vestn. Mosk. Univ., Ser. XV 2022, No. 3, 72-79 (2022).
MSC:  90Cxx 91Bxx 47Axx
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Approximations of the Mittag-Leffler operator function with exponential accuracy and their applications to solving evolutionary equations with fractional time derivative. (English)Zbl 07626256

Ukr. Math. J. 74, No. 5, 709-725 (2022) and Ukr. Mat. Zh. 74, No. 5, 620-634 (2022).
MSC:  65Fxx 34Gxx 47Axx
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MSC:  47A12
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Some inequalities involving interpolations between arithmetic and geometric mean. (English)Zbl 07625855

MSC:  26E60 47A64
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Noncommutative hereditary kernels: Jordan decomposition, Arveson extension, kernel domination. (English)Zbl 07625708

MSC:  47B32 47A60
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Regularization methods for identifying the initial value of time fractional pseudo-parabolic equation. (English)Zbl 07625685

MSC:  35R25 47A52 35R30
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On some Tsallis relative operator entropy properties related to Hellinger metrics. (English)Zbl 07625529

MSC:  54C70 94A17 47A63
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Reverse inequalities for the Berezin number of operators. (English)Zbl 07625522

MSC:  47A30 47B20
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Extensions and dilations of module maps. (English)Zbl 07625298

MSC:  47A20 46L07
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A note on a conjecture concerning rank one perturbations of singular M-matrices. (English)Zbl 07625290

MSC:  15A18 47A55
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MSC:  47A16
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An equivalent property of a Hilbert-type integral inequality and its applications. (English)Zbl 07624728

MSC:  26D15 47A05
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Estimates for a beam-like partial differential operator and applications. (English)Zbl 07624023

MSC:  35B45 35A23 47A55
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Ill-posed problems and the conjugate gradient method: optimal convergence rates in the presence of discretization and modelling errors. (English)Zbl 07624012

MSC:  47A52 65J20 65R30
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Convergence analysis of iteratively regularized Gauss-Newton method with frozen derivative in Banach spaces. (English)Zbl 07624009

MSC:  47A52 65J15 65J20
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On discrete spectrum of one two-particle lattice Hamiltonian. (Russian. English summary)Zbl 07623505

Ufim. Mat. Zh. 14, No. 2, 101-111 (2022); translation in Ufa Math. J. 14, No. 2, 97-107 (2022).
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On estimates for norms of some integral operators with Oinarov’s kernel. (English)Zbl 07623465

MSC:  47A30 47B01 47B37
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Computational challenges in sampling and representation of uncertain reaction kinetics in large dimensions. (English)Zbl 07623248

MSC:  62K15 47A52
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Renormalized solutions for nonlinear elliptic system with variable exponents and singular coefficient and with diffuse measure data. (English)Zbl 07622756

MSC:  47A15 46A32 47D20
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Non self-adjoint well-defined restrictions and extensions with real spectrum. (English)Zbl 07622584

MSC:  47A55 35P05 34L05
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Some results about EP modular operators. (English)Zbl 07622554

MSC:  47Axx 46Lxx 15Bxx
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Remarks on complex symmetric Toeplitz operators. (English)Zbl 07622552

MSC:  47B35 47A05
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Existence of zero-damped quasinormal frequencies for nearly extremal black holes. (English)Zbl 07622226

MSC:  83Cxx 35Lxx 47Axx
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Anderson localization for multi-frequency quasi-periodic Jacobi operators. (English)Zbl 07621924

MSC:  81Q10 47A25
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More on Carathéodory theorem for matrix-valued Schur functions. (English)Zbl 07621513

MSC:  30E05 47A57
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On $$(P,Q)$$-outer generalized inverses and their stability of pseudo spectrum. (English)Zbl 07621512

MSC:  15A09 47A05
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Convergence rates in uniform ergodicity by hitting times and $$L^2$$-exponential convergence rates. (English)Zbl 07621025

MSC:  60J25 47A75
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On the spectrum of a Toeplitz operator in a countable normed space of smooth functions. (Russian. English summary)Zbl 07620411

MSC:  47A10 47B35
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On the Neumann problem for a second order elliptic partial operator-differential equation in Hilbert space. (English)Zbl 07619515

MSC:  35J25 47A10 58J40
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MSC:  47A16
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Invertibility of multipliers for continuous $$g$$-frames. (English)Zbl 07618958

MSC:  41A58 47A99 42C15
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Geometry of planar curves intersecting many lines at a few points. (English)Zbl 07618899

St. Petersbg. Math. J. 33, No. 6, 1047-1062 (2022) and Algebra Anal. 33, No. 6, 214-234 (2021).
MSC:  28B05 05C10 47A30
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Invariant subspaces of the generalized backward shift operator and rational functions. (English. Russian original)Zbl 07618891

St. Petersbg. Math. J. 33, No. 6, 927-942 (2022); translation from Algebra Anal. 33, No. 6, 49-70 (2021).
MSC:  47A15 46E10 47B37
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Taylor series for resolvents of operators on graphs with small edges. (English. Russian original)Zbl 07618856

Proc. Steklov Inst. Math. 317, Suppl. 1, S37-S54 (2022); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 28, No. 1, 40-57 (2022).
MSC:  35J47 47A10 41A58
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Generalized Drazin invertibility of operator matrices. (English)Zbl 07618159

MSC:  47A10 47A11 47B01
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On the eigenstructure of the modified Bernstein operators. (English)Zbl 07618158

MSC:  47A75 47B38
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A dynamical proof of the van der Corput inequality. (English)Zbl 07618111

MSC:  47A35 46L08 46L55
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On perturbations of $$C_0$$-semigroups in Banach spaces generated by operator-valued measures. (English)Zbl 07617004

MSC:  47Dxx 47Axx 47Bxx
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On the solvability of initial problems for an abstract generalized Euler-Poisson-Darboux equation of higher order. (English)Zbl 07616977

MSC:  47Dxx 34Gxx 47Axx
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Multiplication by finite Blaschke factors on a general class of Hardy spaces. (English)Zbl 07616953

MSC:  47A15 30H10 47B38
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Multichannel scattering theory for Toeplitz operators with piecewise continuous symbols. (English)Zbl 07615801

MSC:  47B35 47A40
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MSC:  47A06
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Topological transitivity of the normalized maps induced by linear operators. (English)Zbl 07615685

MSC:  47A16 37B05
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Conjugations preserving Toeplitz kernels. (English)Zbl 07615126

MSC:  47A45 47B37
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Asymmetric Choi-Davis inequalities. (English)Zbl 07615062

MSC:  47A63 15A60 47B65
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On solutions of operator equations satisfying the similarity of real and positive parts. (English)Zbl 07615061

MSC:  47B20 47A10
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New inequalities connected with traces of matrices. (English)Zbl 07614174

MSC:  15A60 47A63 47B15
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Which set is the numerical range of an operator? (English)Zbl 07614126

MSC:  47A12 15A60
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Adjoint pairs and unbounded normal operators. (English)Zbl 07614122

MSC:  47A05 47B15 47B20
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