42 research outputs found
Spectrum of the Sturm-Liouville operators with boundary conditions polynomially dependent on the spectral parameter
Get PDFHalf-linear eigenvalue problem: Limit behavior of the first eigenvalue for shrinking interval
Get PDFMultiplicity of periodic solutions for systems of weakly coupled parametrized second order differential equations
Get PDFWe prove a multiplicity result of periodic solutions for a system of second order differential equations having asymmetric nonlinearities. The proof is based on a recent generalization of the Poincar\ue9\u2013Birkhoff fixed point theorem provided by Fonda and Ure\uf1a
Perturbation and Local Analysis of Uniformly Elliptic Two-Parameter Sturm–Liouville Problems with Eigenparameter Dependent Boundary Conditions
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Inverse eigenvalue problems for a discontinuous Sturm-Liouville operator with two discontinuities
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Spectral exactness and spectral inclusion for singular left-definite Sturm-Liouville problems
No full textSturm–Liouville Problems with Transfer Condition Herglotz Dependent on the Eigenparameter: Eigenvalue Asymptotics
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