Deprecated: $wgMWOAuthSharedUserIDs=false is deprecated, set $wgMWOAuthSharedUserIDs=true, $wgMWOAuthSharedUserSource='local' instead [Called from MediaWiki\HookContainer\HookContainer::run in /var/www/html/w/includes/HookContainer/HookContainer.php at line 135] in /var/www/html/w/includes/Debug/MWDebug.php on line 372
Invertible completions of $2\times 2$ upper triangular operator matrices - MaRDI portal

Invertible completions of $2\times 2$ upper triangular operator matrices

From MaRDI portal
Publication:4700153

DOI10.1090/S0002-9939-99-04965-5zbMath0944.47004OpenAlexW1585548596MaRDI QIDQ4700153

Hong Youl Lee, Woo Young Lee, Jin Kyu Han

Publication date: 1 November 1999

Published in: Proceedings of the American Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1090/s0002-9939-99-04965-5




Related Items (only showing first 100 items - show all)

On -quasi class OperatorsSpectral properties of \(k\)-quasi-\(M\)-hyponormal operatorsSpectral properties and characterization of quasi-n-hyponormal operatorsGeneralized Drazin Invertibility of Operator MatricesA note on Weyl’s theorem for operator matricesThe intersection of left (right) spectra of \(2 \times 2\) upper triangular operator matricesPerturbation of spectra of operator matrices and local spectral theoryThe spectrum is continuous on the set of quasi-\(n\)-hyponormal operatorsThe intersection of essential approximate point spectra of operator matricesOn operators satisfying \(T^{*}|T^2|T\geq T^{*}|T|^{2}T\)On m-quasi-totally-(α,β)-normal operatorsThe point spectrum, residual spectrum and continuous spectrum of upper-triangular operator matrices with given diagonal entriesOn some local spectral theory and bounded local resolvent of operator matricesThe point spectrum and residual spectrum of upper triangular operator matricesOperator matrices and their Weyl type theoremsOperator matrix representations of the generalised Bott-Duffin inverseGeneralized Weyl's theorem for algebraically quasi-paranormal operatorsTaylor spectrum approach to Brownian-type operators with quasinormal entryLeft invertibility of formal Hamiltonian operatorsSpectra of \(3 \times 3\) upper triangular operator matricesNormal and Cohyponormal Weighted Composition Operators on H 2On (k,n) power quasinormal operatorsA class of operators related to m-symmetric operatorsThe point, residual and continuous spectrum of an upper triangular operator matrixPerturbing the spectrum of operator \(T_n^d(A)\)Weyl spectrum of upper triangular operator matricesAround the closure of the set of commutators of idempotents in \(\mathcal{B}(\mathcal{H})\): biquasitriangularity and factorisationOn operators satisfying \(T^*|T^{2}|T \geq T^*|T^*|^{2}T\)Continuity of spectrum and approximate point spectrum on operator matricesCharacterizations of perturbations of spectra of \(2 \times 2\) upper triangular operator matricesSemi-Fredholm spectrum and Weyl's theorem for operator matricesNon-linear maps preserving singular algebraic operatorsA note on \(k\)-quasi-\(\ast \)-paranormal operatorsThe Beurling-Lax-Halmos theorem for infinite multiplicityA note on Browder spectrum of operator matricesUpper triangular operator matrices and limit points of the essential spectrumRight and left Weyl operator matrices in a Banach space settingOn the perturbations of spectra of upper triangular operator matricesApplications of completions of operator matrices to reverse order law for \(\{1\}\)-inverses of operators on Hilbert spacesBrowder spectra and essential spectra of operator matricesDrazin invertibility of upper triangular operator matricesGeneralized Drazin invertibility of operator matricesWeyl’s theorem for upper triangular operator matrix and perturbationsCompletions of upper-triangular matrices to Kato nonsingularityDrazin spectrum of operator matrices on the Banach spaceWeyl type theorems for complex symmetric operator matricesOn (n,k)-quasi class Q^∗ operatorsSome results on higher orders quasi-isometriesOn the filling in holes problem for operator matricesOn the class of $k$-quasi-$(n,m)$-power normal operatorsUpper semi-Weyl and upper semi-Browder spectra of unbounded upper triangular operator matricesOn \(k\)-quasiclass \(A\) operatorsGeneralized invertibility of operator matricesPerturbation of spectra for a class of \(2\times 2\) operator matrices$a$-Weyl’s theorem for operator matricesA note on the left essential spectra of operator matricesBrowder spectra for upper triangular operator matricesUnnamed ItemOn properties of \(k\)-quasi-class \(A(n)\) operatorsOn pseudo B-Weyl operators and generalized Drazin invertibility for operator matricesEssential, Weyl and Browder spectra of unbounded upper triangular operator matricesThe inverse of any two-by-two nonsingular partitioned matrix and three matrix inverse completion problemsEssential spectra of quasisimilar \((p,k)\)-quasihyponormal operatorsWeyl's theorem for upper triangular operator matricesContinuous spectrum, point spectrum and residual spectrum of operator matricesThe intersection of upper and lower semi-Browder spectrum of upper-triangular operator matricesEssential approximate point spectra and Weyl's theorem for operator matricesUnnamed ItemInvertibility of linear combinations in B(ℋ)Absolute-\((k, m)\)-paranormal and absolute-\((k^*,m)\)-paranormal weighted composition operatorsBrowder essential approximate point spectra and hypercyclicity for operator matricesSome results on Fredholmness and boundedness below of an upper triangular operator matrixUnnamed ItemGeneralized Drazin spectrum of operator matricesDichotomy spectra of triangular equationsHyponormal operators with rank-two self-commutatorsSolutions to some systems of adjointable operator equations over Hilbert \(C^\ast\)-modulesRIESZ PROJECTIONS FOR A NON-HYPONORMAL OPERATORGreen's function of the problem of bounded solutions in the case of a block triangular coefficientSTRUCTURAL AND SPECTRAL PROPERTIES OF k-QUASI-*-PARANORMAL OPERATORSUnnamed ItemClosedness of ranges of upper-triangular operatorsOn \(n\)-quasi-\([m,C\)-isometric operators] ⋮ Property (b) and property (w) for operator matricesPolaroid operators and Weyl type theoremsSome spectra properties of unbounded $2\times2$ upper triangular operator matricesClasses of operators related to m-isometric operatorsLimit points for Browder spectrum of operator matricesOn the invertibility of upper triangular operator matricesEssential spectrum of upper triangular operator matricesUnnamed ItemUnnamed ItemThe reduced minimum modulus of operatorsPerturbation bound for the generalized Drazin inverse of an operator in Banach spaceOperators commuting with self-adjoint weighted composition operators on H2Block diagonalization in Banach algebrasOn properties of the operator equation TT*=T+T*Towards a model theory for 2-hyponormal operators.Commutators of weighted composition operatorsLeft invertible completions of upper triangular operator matrices with unbounded entries




This page was built for publication: Invertible completions of $2\times 2$ upper triangular operator matrices