Found 614 Documents (Results 1–100)
Direct and some inverse problems for a generalized diffusion equation with variable coefficients. (English) Zbl 07910911
Generalizations of certain conditions for Drazin inverse expressions of anti-triangular partitioned matrices. (English) Zbl 07899636
The generalized Drazin inverse of an operator matrix with commuting entries. (English) Zbl 1537.15002
Common properties of \(a\) and \(b\) satisfying \(ab^n = b^{n+1}\) and \(ba^n = a^{n+1}\) in Banach algebras. (English) Zbl 07825639
Algebraic theory of generalized inverses. (English) Zbl 1542.15001
Singapore: Springer; Beijing: Science Press (ISBN 978-981-99-8284-4/hbk; 978-981-99-8287-5/pbk; 978-981-99-8285-1/ebook). xi, 322 p. (2024).
Reviewer: Mohammad Sal Moslehian (Mashhad)
Matrix monotonicity and concavity of the principal pivot transform. (English) Zbl 1532.15003
Reviewer: Mohammad Sal Moslehian (Mashhad)
Pseudo-differential Calculi and entropy estimates with Orlicz modulation spaces. (English) Zbl 1532.35557
Algebraic proofs of characterizing reverse order law for closed range operators in Hilbert spaces. (English) Zbl 07823357
Jacobi matrices and the moment problem. (English) Zbl 07795958
Operator Theory: Advances and Applications 294. Cham: Birkhäuser (ISBN 978-3-031-46386-0/hbk; 978-3-031-46389-1/pbk; 978-3-031-46387-7/ebook). ix, 485 p. (2023).
Reviewer: Vladimir A. Derkach (Donetsk)
An operator theory for analyzing the resolution of multi-illumination imaging modalities. (English) Zbl 1538.65633
Block representations for the \(g\)-Drazin inverse in Banach algebras. (English) Zbl 1538.15002
MSC:
15A09
A 2-component Camassa-Holm equation, Euler-Bernoulli beam problem, and noncommutative continued fractions. (English) Zbl 1526.74038
Core invertibility of operators from the algebra generated by two orthogonal projections. (English) Zbl 07722765
Idempotent operator and its applications in Schur complements on Hilbert \(C^*\)-module. (English) Zbl 07714818
Reviewer: Mohammad Sal Moslehian (Mashhad)
Inverse problem for mixed-type equation with an elliptic operator of arbitrary order. (English) Zbl 1514.35478
Absolutely convergent Fourier-Bessel series and generalized Lipschitz classes. (English) Zbl 1533.43006
Local knot method for solving inverse Cauchy problems of Helmholtz equations on complicated two- and three-dimensional domains. (English) Zbl 1527.65119
The inverse problem for generalized contraharmonic means. (English. Russian original) Zbl 1509.15012
Russ. Math. 66, No. 7, 1-6 (2022); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2022, No. 7, 3-9 (2022).
Weighted weak core inverse of operators. (English) Zbl 1525.47002
Reviewer: Kamran Sharifi (Shahrood)
On the generalized Ornstein-Uhlenbeck operators perturbed by regular potentials and inverse square potentials in weighted \(L^2\)-spaces. (English) Zbl 1519.47047
Polynomially EP operators. (English) Zbl 1542.47004
Reviewer: K. C. Sivakumar (Chennai)
Some representations of Moore-Penrose inverse for the sum of two operators and the extension of the Fill-Fishkind formula. (English) Zbl 1497.15009
Reviewer: Mohammad Sal Moslehian (Mashhad)
Jacobson’s lemma for the generalized \(n\)-strong Drazin inverses in rings and in operator algebras. (English) Zbl 1509.16037
The metric generalized inverse and its single-value selection in the pricing of contingent claims in an incomplete financial market. (English) Zbl 1498.47004
Weighted EP of block operator matrices. (English) Zbl 1504.47012
MSC:
47A08
Approximation properties of the sampling Kantorovich operators: regularization, saturation, inverse results and Favard classes in \(L^p\)-spaces. (English) Zbl 1505.41012
A note on formulae for the generalized Drazin inverse of anti-triangular block operator matrices in Banach spaces. (English) Zbl 1489.15010
Weighted MPCEP inverse of an operator between Hilbert spaces. (English) Zbl 07499352
Reviewer: Mohammed Karmouni (Safi)
Reverse time migration for inverse obstacle scattering with a generalized impedance boundary condition. (English) Zbl 1485.35131
Drazin-star and star-Drazin inverses of bounded finite potent operators on Hilbert spaces. (English) Zbl 1496.47034
Reviewer: Mohammad Sal Moslehian (Mashhad)
Commuting perturbations of operator equations. (English) Zbl 07907244
MSC:
15A18
Idempotent relations, semi-projections, and generalized inverses. (English) Zbl 1506.47007
de Snoo, H. S. V. (ed.) et al., Contributions to mathematics and statistics. Essays in honor of Seppo Hassi. Vaasa: University of Vaasa, School of Technology and Innovation. Acta Wasaensia 462, 87-110 (2021).
Reviewer: Valerii V. Obukhovskij (Voronezh)
Characterizations and representations for the Drazin inverse of anti-triangular block operator matrices with index less than two. (English) Zbl 1489.15009
Error bounds for generalized vector inverse quasi-variational inequality problems with point to set mappings. (English) Zbl 1487.49012
Reviewer: Liya Liu (Chengdu)
Analysis of a generalized regularized Gauss-Newton method under heuristic rule in Banach spaces. (English) Zbl 1482.65079
A combinatorial expression for the group inverse of symmetric \(M\)-matrices. (English) Zbl 1473.05050
Drazin invertibility of anti-triangular operator matrix and its application. (Chinese. English summary) Zbl 1488.15007
Generalized inverses. (English) Zbl 07391048
Mladenov, Ivaïlo M. (ed.) et al., Proceedings of the 22nd international conference on geometry, integrability and quantization, Varna, Bulgaria, June 8–13, 2020. Sofia: Bulgarian Academy of Sciences, Institute of Biophysics and Biomedical Engineering. Geom. Integrability Quantization 22, 13-32 (2021).
Reviewer: K. C. Sivakumar (Chennai)
On the Jackson-type inequalities in approximation theory connected to the \(q\)-Dunkl operators in the weighted space \(L^2_{q, \alpha }(\mathbb{R}_q, |x|^{2 \alpha +1}d_q x )\). (English) Zbl 1478.41002
Reviewer: D. K. Ugulava (Tbilisi)
On \(p\)-Drazin invertible operator matrices. (Chinese. English summary) Zbl 1474.15018
Analytical inversion of the operator matrix for the problem of diffraction by a cylindrical segment in Sobolev spaces. (English. Russian original) Zbl 1467.45018
Comput. Math. Math. Phys. 61, No. 3, 424-430 (2021); translation from Zh. Vychisl. Mat. Mat. Fiz. 61, No. 3, 450-456 (2021).
Some additive results on m-P inverse of operator product. (English) Zbl 1521.47003
Reviewer: K. C. Sivakumar (Chennai)
Qualitative indicator functions for imaging crack networks using acoustic waves. (English) Zbl 1461.35222
Local solvability and stability of the inverse problem for the non-self-adjoint Sturm-Liouville operator. (English) Zbl 1496.34032
On weak and strong convergence results for generalized equilibrium variational inclusion problems in Hilbert spaces. (English) Zbl 1492.47080
Generalizations of some classical theorems to \(D\)-normal operators on Hilbert spaces. (English) Zbl 1487.47037
Hybrid algorithms for generalized variational inequalities. (English) Zbl 1465.49013
Reviewer: Bing Tan (Chengdu)
Generalized Drazin invertibility of the product and sum of bounded linear operators. (Chinese. English summary) Zbl 1483.47003
MSC:
47A05
Riemann-Hilbert problems for null-solutions to iterated generalized Cauchy-Riemann equation on upper half ball. (English) Zbl 1462.35230
On ad-nonprojection method for stable approximation to infinite-dimensional Moore-Penrose inverse. (English) Zbl 1459.65078
The inverse scattering problem for the perturbed string equation and its application to integration of the two-dimensional generalization from Korteweg-de Vries equation. (English) Zbl 1451.35172
Generalization of the Moore-Penrose inverse. (English) Zbl 07258322
Rev. R. Acad. Cienc. Exactas Fís. Nat., Ser. A Mat., RACSAM 114, No. 4, Paper No. 196, 16 p. (2020).
Weighted weak group inverse for Hilbert space operators. (English) Zbl 1520.47035
Reviewer: Tin Yau Tam (Reno)
Breather wave, periodic, and cross-kink solutions to the generalized Bogoyavlensky-Konopelchenko equation. (English) Zbl 1448.35436
On the mixed-type generalized inverses of the products of two operators. (English) Zbl 1504.47007
MSC:
47A05
Generalized integral transforms with the translation operator on function space. (English) Zbl 1499.60275
Reconstruction of generalized impedance functions for 3D acoustic scattering. (English) Zbl 1452.65310
Nonnegative generalized inverses of linear operators. (Chinese. English summary) Zbl 1463.47007
MSC:
47A05
Cauchy-Schwarz inequality and Riccati equation for positive semidefinite matrices. (English) Zbl 1448.15024
Andrica, Dorin (ed.) et al., Differential and integral inequalities. Cham: Springer. Springer Optim. Appl. 151, 341-350 (2019).
Reviewer: Mojtaba Bakherad (Zahedan)
Gap functions and error bounds for vector inverse mixed quasi-variational inequality problems. (English) Zbl 1435.49004
Solutions to some systems of adjointable operator equations over Hilbert \(C^\ast\)-modules. (English) Zbl 1435.47026
Reviewer: Mohammad Sal Moslehian (Mashhad)
A viscosity iterative algorithm technique for solving a general equilibrium problem system. (English) Zbl 1505.47079
Fractional smoothness in \(L^p\) with Dunkl weight and its applications. (English) Zbl 1435.42007
Reviewer: Marcel G. de Bruin (Heemstede)
The Drazin inverse and representation of the anti-triangular operator matrix. (Chinese. English summary) Zbl 1438.15006
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