Non-self-adjoint singular Sturm-Liouville problems with boundary conditions dependent on the eigenparameter.
Bairamov, Elgiz, Seyyidoglu, M.Seyyit (2010)
Abstract and Applied Analysis
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Displaying similar documents to “Discrete spectrum and principal functions of non-selfadjoint differential operator”
Non-self-adjoint singular Sturm-Liouville problems with boundary conditions dependent on the eigenparameter.
Spectral singularities of Sturm-Liouville problems with eigenvalue-dependent boundary conditions.
Bairamov, Elgiz, Yokus, Nihal (2009)
Abstract and Applied Analysis
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Spectral properties of the Klein–Gordon -wave equation with spectral parameter-dependent boundary condition.
Başcanbaz-Tunca, Gülen (2004)
International Journal of Mathematics and Mathematical Sciences
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A minimax principle for eigenvalues in spectral gaps: Dirac operators with Coulomb potentials.
Griesemer, Marcel, Lewis, Roger T., Siedentop, Heinz (1999)
Documenta Mathematica
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Spectral analysis for differential operators with singularities.
Yurko, Vjacheslav Anatoljevich (2004)
Abstract and Applied Analysis
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On the joint spectral radius
Vladimír Müller (1997)
Annales Polonici Mathematici
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We prove the -spectral radius formula for n-tuples of commuting Banach algebra elements
Spectral sets and the Drazin inverse with applications to second order differential equations
Trung Dinh Tran (2002)
Applications of Mathematics
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The paper defines and studies the Drazin inverse for a closed linear operator in a Banach space in the case that belongs to a spectral set of the spectrum of . Results are applied to extend a result of Krein on a nonhomogeneous second order differential equation in a Banach space.
On the zero set of the Kobayashi-Royden pseudometric of the spectral unit ball
Nikolai Nikolov, Pascal J. Thomas (2008)
Annales Polonici Mathematici
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Given A∈ Ωₙ, the n²-dimensional spectral unit ball, we show that if B is an n×n complex matrix, then B is a “generalized” tangent vector at A to an entire curve in Ωₙ if and only if B is in the tangent cone to the isospectral variety at A. In the case of Ω₃, the zero set of the Kobayashi-Royden pseudometric is completely described.