DOI10.1016/S0024-3795(01)00230-0zbMath0998.15035OpenAlexW1994228684WikidataQ124629916 ScholiaQ124629916MaRDI QIDQ5940028
Christiane Tretter, Heinz K. Langer, Vladimir Matsaev, Alexander Markus
Publication date: 24 November 2002
Published in: Linear Algebra and its Applications (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1016/s0024-3795(01)00230-0
Self-adjoint block operator matrices with non-separated diagonal entries and their Schur complements.,
Alternative proof of the a priori \(\tan \theta\) theorem,
Исследование числовой области значений одной операторной матрицы,
On the geometry of the quadratic numerical range for 2 × 2 block operator matrices,
On the block numerical range of operators on arbitrary Banach spaces,
Variational principles and eigenvalue estimates for unbounded block operator matrices and applications,
Symmetry of the quadratic numerical range and spectral inclusion properties of Hamiltonian operator matrices,
Maximal \(L^p\)-regularity and \(H^\infty\)-calculus for block operator matrices and applications,
Spectral inclusion property for a class of block operator matrices,
Approximation of the quadratic numerical range of block operator matrices,
The quadratic numerical range of an analytic operator function,
Operator Stieltjes integrals with respect to a spectral measure and solutions of some operator equations,
Spectral Bounds Using Higher-Order Numerical Ranges,
Krylov type methods for linear systems exploiting properties of the quadratic numerical range,
Unnamed Item,
A variational principle for block operator matrices and its application to the angular part of the Dirac operator in curved spacetime,
Spectral inclusion for unbounded diagonally dominant \(n\times n\) operator matrices,
On the Riccati equations,
Existence and uniqueness of contractive solutions of some Riccati equations,
Birkhoff's theorem and multidimensional numerical range,
Spectrum of definite type of self-adjoint operators in Krein spaces,
Symplectic self-adjointness of infinite dimensional Hamiltonian operators,
The block numerical range of matrix polynomials,
Spectral inclusion for unbounded block operator matrices,
Solvability of the operator Riccati equation in the Feshbach case,
Semigroup generations of unbounded block operator matrices based on the space decomposition,
Perturbation of spectra and spectral subspaces,
Restricted numerical range: A versatile tool in the theory of quantum information,
Spectral inclusion properties of unbounded Hamiltonian operators,
Spectral inclusion by the quadratic numerical range of 2 x 2 operator matrices with unbounded entries,
Some general quadratic numerical radius inequalities for the off-diagonal parts of $2 ⨉ 2$ block operator matrices,
Repeated eigenvectors and the numerical range of self-adjoint quadratic operator polynomials
