The point spectra and regularity fields of non-selfadjoint quasi- differential operators

DOI10.1216/rmjm/1181072243zbMath0832.47043OpenAlexW2004496785MaRDI QIDQ1898286

Sobhy El-Sayed Ibrahim

Publication date: 8 February 1996

Published in: Rocky Mountain Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1216/rmjm/1181072243

zbMATH Keywords

location of the point spectraordinary quasi-differential expressions of \(n\)th order with complex coefficientsregularity fields

Mathematics Subject Classification ID

Nonlinear differential equations in abstract spaces (34G20) Spectrum, resolvent (47A10) General theory of ordinary differential operators (47E05)

Related Items

The Spectra of General Differential Operators in the Direct Sum Spaces ⋮ On the essential spectra of regularly solvable operators in the direct sum spaces

Cites Work

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• Boundary conditions for general ordinary differential operators and their adjoints
• Some Remarks on Linear Ordinary Quasi-Differential Expressions
• On the location of the essential spectra and regularity fields of complex Sturm—Liouville operators
• On general boundary problems for elliptic differential equations
• INTEGRABLE-SQUARE SOLUTIONS OF ORDINARY DIFFERENTIAL EQUATIONS (III)