Results 51 to 60 of about 1,276,020 (209)

Uniqueness problem for accretive Schrödinger operators with complex singular coefficients

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 9, September 2026.
Abstract This paper studies the uniqueness problem for the one‐dimensional Schrödinger operator associated with the formal differential expression l[u]=−u′′+qu+i[(ru)′+ru′]$l[u] =-u^{\prime \prime }+qu + i[(ru)^{\prime }+ru^{\prime }] $ in the complex Hilbert space L2(R)$L^{2}(\mathbb {R})$.
Vladimir Mikhailets, Volodymyr Molyboga
wiley   +1 more source

On the equivalence of discrete Sturm–Liouville problem with nonlocal boundary conditions to the algebraic eigenvalue problem

open access: yesLietuvos Matematikos Rinkinys, 2015
We consider the finite difference approximation of the second order Sturm–Liouville equation with nonlocal boundary conditions (NBC). We investigate the condition when the discrete Sturm–Liouville problem can be transformed to an algebraic eigenvalue ...
Jurij Novickij, Artūras Štikonas
doaj   +1 more source

A Study of the Eigenfunctions of the Singular Sturm–Liouville Problem Using the Analytical Method and the Decomposition Technique

open access: yesMathematics, 2020
The history of boundary value problems for differential equations starts with the well-known studies of D. Bernoulli, J. D’Alambert, C. Sturm, J. Liouville, L. Euler, G. Birkhoff and V. Steklov.
Oktay Sh. Mukhtarov, Merve Yücel
doaj   +1 more source

On completeness of weak eigenfunctions for multi-interval Sturm-Liouville equations with boundary-interface conditions

open access: yesDemonstratio Mathematica, 2023
The goal of this study is to analyse the eigenvalues and weak eigenfunctions of a new type of multi-interval Sturm-Liouville problem (MISLP) which differs from the standard Sturm-Liouville problems (SLPs) in that the Strum-Liouville equation is defined ...
Olgar Hayati
doaj   +1 more source

Scattering theory of impulsive Sturm-Liouville equations

open access: yesFilomat, 2017
In this paper, we investigate scattering theory of the impulsive Sturm-Liouville boundary value problem (ISBVP). In particular, we find the Jost solution and the scattering function of this problem. We also study the properties of the Jost function and the scattering function of this ISBVP.
Öznur, Güler Başak   +2 more
openaire   +3 more sources

Spectral singularities of an impulsive Sturm-Liouville operators

open access: yes, 2022
In this paper, we handle an impulsive Sturm–Liouville equation with complex potential on the semi axis. The objective of this work is to examine some spectral properties of this impulsive Sturm–Liouville equation.
Öznur, Güler Başak
core   +1 more source

Fast Calculation for the Flow and Heat Transfer of Tempered Fractional Maxwell Viscoelastic Fluid

open access: yesInternational Journal for Numerical Methods in Fluids, Volume 98, Issue 8, Page 969-979, August 2026.
This study develops a tempered fractional Maxwell model to simulate unsteady thermal flow in viscoelastic fluids, capturing key rheological behaviors. A fast SOE‐based algorithm is proposed to improve the computational efficiency of the numerical scheme. Results reveal how key parameters influence fluid motion and heat transfer, demonstrating the model'
Yi Liu, Mochen Jiang, Libo Feng
wiley   +1 more source

Spectral singularities of the nonhomogeneous Sturm-Liouville equations

open access: yesApplied Mathematics Letters, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Murat Adivar, Elgiz Bairamov
openaire   +3 more sources

Moisture Decomposition With Normal Modes in Global Data: Balanced and Unbalanced Components

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 13, 16 July 2026.
Abstract Decompositions with normal modes have been useful for numerous purposes, such as theoretical understanding of balanced and unbalanced circulations, and applications to data assimilation. However, normal mode decompositions have typically been formulated for dry dynamics without moisture.
Bradley Kumm   +3 more
wiley   +1 more source

Uyumlu kesirli mertebeden Sturm-Liouville denkleminin spektral analizi = Spectral analysis of conformable fractional order Sturm-Liouville equation /

open access: yes, 2020
Bu tez çalışmasında; kesirli diferansiyel denklemlerin genişletilmiş hali olan uyumlu kesirli Sturm-Liouville denklemi ele alınmıştır. Regüler ve Singüler uyumlu kesirli Sturm-Liouville sınır değer problemlerinin sınıflandırılması yapılmıştır.
Paşaoğlu, Bilender, 1955- thesis advisor 10115   +3 more
core  

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