Results 1 to 10 of about 271 (161)

Sturm–Liouville operators on time scales [PDF]

open access: yesJournal of Difference Equations and Applications, 2012
We establish the connection between Sturm-Liouville equations on time scales and Sturm--Liouville equations with measure-valued coefficients. Based on this connection we generalize several results for Sturm-Liouville equations on time scales which have been obtained by various authors in the past.
Jonathan Eckhardt, Gerald Teschl
exaly   +4 more sources

Bernstein collocation technique for a class of Sturm-Liouville problems [PDF]

open access: yesHeliyon
Sturm-Liouville problems have yielded the biggest achievement in the spectral theory of ordinary differential operators. Sturm-Liouville boundary value issues appear in many key applications in natural sciences. All the eigenvalues for the standard Sturm-
Humaira Farzana   +2 more
doaj   +2 more sources

Random Sturm–Liouville operators

open access: yesApplied Mathematics Letters, 2011
Selfadjoint Sturm-Liouville operators $H_ω$ on $L_2(a,b)$ with random potentials are considered and it is proven, using positivity conditions, that for almost every $ω$ the operator $H_ω$ does not share eigenvalues with a broad family of random operators and in particular with operators generated in the same way as $H_ω$ but in $L_2(\tilde a,\tilde b)$
Rafael Del Rio
exaly   +3 more sources

Spectral properties of an impulsive Sturm-Liouville operator. [PDF]

open access: yesJ Inequal Appl, 2018
This work is devoted to discuss some spectral properties and the scattering function of the impulsive operator generated by the Sturm-Liouville equation. We present a different method to investigate the spectral singularities and eigenvalues of the mentioned operator.
Bairamov E, Erdal I, Yardimci S.
europepmc   +6 more sources

Transformation operators for impedance Sturm–Liouville operators on the line

open access: yesМатематичні Студії, 2023
In the Hilbert space $H:=L_2(\mathbb{R})$, we consider the impedance Sturm--Liouville operator $T:H\to H$ generated by the differential expression $ -p\frac{d}{dx}{\frac1{p^2}}\frac{d}{dx}p$, where the function  $p:\mathbb{R}\to\mathbb{R}_+$ is of ...
M. Kazanivskiy   +2 more
doaj   +2 more sources

Transformation Operators for Sturm–Liouville Operators with Singular Potentials [PDF]

open access: yesMathematical Physics Analysis and Geometry, 2004
Transformation operators are constructed for the Sturm-Liouville operator \(\ell f:=f''+qf\) with a singular complex-valued potential \(q\in W_2^{-1}(0,1)\). Some applications to the spectral analysis of Sturm-Liouville operators with singular potentials are also given.
R Hryniv
exaly   +2 more sources

On the Jost Solutions of A Class of the Quadratic Pencil of the Sturm-Liouville Equation

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2023
In this study we construct new integral representations of Jost-type solutions of the quadratic pencil of the Sturm-Liouville equation with the piece-wise constant coefficient on the entire real line.
Döndü Nurten Cücen, Anar Adiloğlu
doaj   +1 more source

Perturbations of periodic Sturm–Liouville operators

open access: yesAdvances in Mathematics, 2023
17 ...
Behrndt, Jussi   +3 more
openaire   +3 more sources

The Principle of Localization at the Class of Functions Integrable in the Riemann for the Processes of Lagrange - Sturm - Liouville [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2020
Let us say that the principle of localization holds at the class of functions $F$ at point $x_0 \in [0, \pi]$ for the Lagrange\,--\,Sturm\,--\,Liouville interpolation process $L_n^{SL}(f,x)$ if $\lim_{n \rightarrow \infty}\left|L_n^{SL}(f, x_0)-L_n^{SL ...
Aleksandr Yurievich Trynin   +1 more
doaj   +1 more source

Comparison and oscillation theorems for singular Sturm-Liouville operators [PDF]

open access: yesOpuscula Mathematica, 2014
We prove analogues of the classical Sturm comparison and oscillation theorems for Sturm-Liouville operators on a finite interval with real-valued distributional potentials.
Monika Homa, Rostyslav Hryniv
doaj   +1 more source

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