Friedrichs extension and essential spectrum of systems of differential operators of mixed order

DOI10.1002/mana.200510324zbMath1087.47048OpenAlexW2004321201MaRDI QIDQ5711810

Tobias Kusche, Reinhard Mennicken, Manfred Möller

Publication date: 8 December 2005

Published in: Mathematische Nachrichten (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1002/mana.200510324

zbMATH Keywords

quadratic formessential spectrumFriedrichs extensionmatrix-differential operator

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) General theory of ordinary differential operators (47E05) Applications of operator theory to differential and integral equations (47N20) Ordinary differential operators (34L99) Forms (bilinear, sesquilinear, multilinear) (47A07)

Related Items (3)

Essential spectra of singular matrix differential operators of mixed order ⋮ Gustafson, weidmann, kato, wolf, schechter and browder essential spectra of some matrix operator and application to two-group transport equation ⋮ Essential spectra of singular matrix differential operators of mixed order in the limit circle case

Cites Work

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• Operator Interpretation of Resonances Arising in Spectral Problems for 2 × 2 Operator Matrices
• ON AN ELLIPTIC BOUNDARY VALUE PROBLEM ARISING IN MAGNETOHYDRODYNAMICS
• Systems of Singular Differential Operators of Mixed Order and Applications to 1 - Dimensional MHD Problems
• The Essential Spectrum of a System of Singular Ordinary Differential Operators of Mixed Order. Part I: The General Problem and an Almost Regular Case

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