Estimates of singular numbers (s$$ s $$‐numbers) and eigenvalues of a mixed elliptic‐hyperbolic type operator with parabolic degeneration

DOI10.1002/mma.8908OpenAlexW4311455645MaRDI QIDQ6140671

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Publication date: 2 January 2024

Published in: Mathematical Methods in the Applied Sciences (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1002/mma.8908

zbMATH Keywords

resolventeigenvaluesseparabilitycompactnessmixed-type operatorsingular numbers (\(s\)-numbers)

Mathematics Subject Classification ID

PDEs of mixed type (35M10) Spectrum, resolvent (47A10)

Cites Work

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• On the spectral problem from the theory of the parabolic-hyperbolic heat equation
• On the compactness of the resolvent of a Schrödinger type singular operator with a negative parameter
• Variational Characterizations of Weak Solutions to the Dirichlet Problem for Mixed-Type Equations
• On discreteness of the spectrum of a class of mixed-type singular differential operators
• One-dimensional Schrodinger operator with a negative parameter and its applications to the study of the approximation numbers of a singular hyperbolic operator
• Spectral Theory for Linear Operators of Mixed Type and Applications to Nonlinear Dirichlet Problems
• Sturm–Liouville operator with a parameter and its usage to spectrum research of some differential operators
• Some Properties of the Domains of Certain Differential Operators

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