Diagonalization of indefinite saddle point forms

DOI10.1007/978-3-030-31531-3_21zbMath1446.47002arXiv1710.05105OpenAlexW3092445779MaRDI QIDQ5118024

Krešimir Veselić, Stephan Schmitz, Vadim Kostrykin, Luka Grubišić, Konstantin A. Makarov

Publication date: 26 August 2020

Published in: Analysis as a Tool in Mathematical Physics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1710.05105

zbMATH Keywords

perturbation theoryquadratic formsinvariant subspacesStokes operatoroperator Riccati equation

Mathematics Subject Classification ID

PDEs of mixed type (35M10) Perturbation theory of linear operators (47A55) General theory of partial differential operators (47F05) Equations involving linear operators, with operator unknowns (47A62) Forms (bilinear, sesquilinear, multilinear) (47A07)

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On a minimax principle in spectral gaps

Cites Work

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• Notes on the \(\sin 2\Theta\) theorem
• On invariant graph subspaces
• Representation theorems for indefinite quadratic forms without spectral gap
• The essential spectrum of elliptic systems of mixed order
• Non-semibounded sesquilinear forms and left-indefinite Sturm-Liouville problems
• On the essential spectrum of the linearized Navier-Stokes operator
• On the existence of solutions to the operator Riccati equation and the \(\tan\Theta\) theorem
• The \(\operatorname{Tan}2\Theta \) theorem for indefinite quadratic forms
• Dichotomous Hamiltonians with unbounded entries and solutions of Riccati equations
• The \( \operatorname{Tan} 2 \Theta\) theorem in fluid dynamics
• Leading term in the asymptotic spectral formula for nonsmooth elliptic problems
• Hamiltonians and Riccati Equations for Linear Systems with Unbounded Control and Observation Operators
• Perturbation of spectra and spectral subspaces
• On a subspace perturbation problem
• Graph Subspaces and the Spectral Shift Function
• BLOCK-DIAGONALIZATION OF OPERATORS WITH GAPS, WITH APPLICATIONS TO DIRAC OPERATORS
• The Essential Spectrum of Some Matrix Operators
• Spectral Decomposition of Symmetric Operator Matrices
• REPRESENTATION THEOREMS FOR INDEFINITE QUADRATIC FORMS REVISITED
• Invariant Subspaces of Matrices with Applications
• Matrix Polynomials
• The Rotation of Eigenvectors by a Perturbation. III
• Existence and uniqueness of contractive solutions of some Riccati equations

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