Results 11 to 20 of about 5,586,428 (163)

Solutions of Sturm-Liouville Problems

open access: yesMathematics, 2020
This paper further improves the Lie group method with Magnus expansion proposed in a previous paper by the authors, to solve some types of direct singular Sturm–Liouville problems.
Upeksha Perera, Christine Böckmann
doaj   +3 more sources

Positive solutions of a boundary value problem with integral boundary conditions [PDF]

open access: yes, 2011
We consider boundary-value problems studied in a recent paper. We show that some existing theory developed by Webb and Infante applies to this problem and we use the known theory to show how to find improved estimates on parameters μ*, λ so ...
Webb, J.
core   +8 more sources

On a fractional Sturm-Liouville problem in higher dimensions [PDF]

open access: yes, 2023
In this short paper, we consider an n-dimensional fractional Sturm-Liouville eigenvalue problem, by using fractional versions of the gradient operator involving left Caputo and right Riemann-Liouville fractional derivatives.
Ferreira, M.   +2 more
core   +1 more source

q-multiplicative Sturm-Liouville problem [PDF]

open access: yes, 2023
In this paper, the classical Sturm–Liouville problem is investigated in the context of q-multiplicative calculus. Some spectral properties of the q-multiplicative Sturm–Liouville problems, such as formally self-adjointness, and orthogonality of ...
Tuna, H., Allahverdiev, B.P.
core   +1 more source

Continuations of Hermitian indefinite functions and corresponding canonical systems : an example [PDF]

open access: yes, 2004
M. G. Krein established a close connection between the continuation problem of positive definite functions from a finite interval to the real axis and the inverse spectral problem for differential operators.
Langer, M.   +5 more
core   +3 more sources

Inverse Eigenvalue Problems for Singular Rank One Perturbations of a Sturm-Liouville Operator

open access: yesAdvances in Mathematical Physics, 2021
This paper is concerned with the inverse eigenvalue problem for singular rank one perturbations of a Sturm-Liouville operator. We determine uniquely the potential function from the spectra of the Sturm-Liouville operator and its rank one perturbations.
Xuewen Wu
doaj   +1 more source

On partial fractional Sturm–Liouville equation and inclusion

open access: yesAdvances in Difference Equations, 2021
The Sturm–Liouville differential equation is one of interesting problems which has been studied by researchers during recent decades. We study the existence of a solution for partial fractional Sturm–Liouville equation by using the α-ψ-contractive ...
Zohreh Zeinalabedini Charandabi   +3 more
doaj   +1 more source

An accurate method for solving a class of fractional Sturm-Liouville eigenvalue problems

open access: yesResults in Physics, 2018
This article is devoted to both theoretical and numerical study of the eigenvalues of nonsingular fractional second-order Sturm-Liouville problem. In this paper, we implement a fractional-order Legendre Tau method to approximate the eigenvalues.
Bothayna S.H. Kashkari, Muhammed I. Syam
doaj   +1 more source

Inverse eigenvalue problems for rank one perturbations of the Sturm-Liouville operator

open access: yesOpen Mathematics, 2022
This article is concerned with the inverse eigenvalue problem for rank one perturbations of the Sturm-Liouville operator. I obtain the relationship between the spectra of the Sturm-Liouville operator and its rank one perturbations, and from the spectra I
Wu Xuewen
doaj   +1 more source

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

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