Results 61 to 70 of about 296 (136)

Principal solution in Weyl-Titchmarsh theory for second order Sturm-Liouville equation on time scales

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2017
A connection between the oscillation theory and the Weyl-Titchmarsh theory for the second order Sturm-Liouville equation on time scales is established by using the principal solution.
Petr Zemanek
doaj   +1 more source

The UV prolate spectrum matches the zeros of zeta. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Connes A, Moscovici H.
europepmc   +1 more source

Spectral and Oscillation Theory for an Unconventional Fractional Sturm–Liouville Problem

open access: yesFractal and Fractional
Here, we investigate the spectral and oscillation theory for a class of fractional differential equations subject to specific boundary conditions.
Mohammad Dehghan, Angelo B. Mingarelli
doaj   +1 more source

Inverse scattering problems for energy-dependent Sturm-Liouville equations with point delta-interaction and eigenparameter-dependent boundary condition

open access: yesElectronic Journal of Differential Equations, 2013
We consider an inverse problem of the scattering theory for energy-dependent Sturm-Liouville equations on the half line $[0,+\infty )$ with point $\delta $-interaction and eigenparameter-dependent boundary condition.
Manaf Dzh. Manafov, Abdullah Kablan
doaj  

Existence of solutions for a two-point boundary-value problem of a fourth-order Sturm-Liouville type

open access: yesElectronic Journal of Differential Equations, 2012
In this work, we establish the existence of two intervals for a parameter $lambda$ for which a two-point boundary-value problem of fourth-order Sturm-Liouville type admits three weak solutions whose norms are uniformly bounded with respect to $lambda$.
Shapour Heidarkhani
doaj  

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