Results 131 to 140 of about 567,385 (243)

The weakly non-linear waves propagation for Kelvin-Helmholtz instability in the magnetohydrodynamics flow impelled by fractional theory. [PDF]

Opt Quantum Electron, 2023
Faridi WA, Asjad MI, Jhangeer A, Yusuf A, Sulaiman TA.   +4 more
europepmc   +1 more source

Sturm-liouville operators with discontinuoities inside a finite interval and inverse problems

, 2006
Fen Bilimleri Enstitüsü, Matematik Ana Bilim DalıBu çalışma ikinci mertebeden diferansiyel operatOrlerin spektral teorisine aittir. Sunduğumuz çalışmada Bir arahkta süreksizliğe sahip Sturm-Liouville operatörleri ve ters problemi incelenmiştir.
Ergün, Abdullah
core   +1 more source

The Resolvent of Impulsive Singular Hahn–Sturm–Liouville Operators

Annales Mathematicae Silesianae
In this study, the resolvent of the impulsive singular Hahn–Sturm– Liouville operator is considered. An integral representation for the resolvent of this operator is obtained.
Allahverdiev Bilender P., Tuna Hüseyin, Isayev Hamlet A.   +2 more
doaj   +1 more source

Operational matrices based on the shifted fifth-kind Chebyshev polynomials for solving nonlinear variable order integro-differential equations. [PDF]

Adv Differ Equ, 2021
Jafari H, Nemati S, Ganji RM.
europepmc   +1 more source

Positive solutions for multipoint boundary-value problem with parameters

Electronic Journal of Differential Equations, 2008
In this paper, we study a generalized Sturm-Liouville boundary-value problems with two positive parameters. By constructing a completely continuous operator and combining fixed point index theorem and some properties of the eigenvalues of linear ...
Zhongli Wei, Juanjuan Xu
doaj  

Two Chebyshev Spectral Methods for Solving Normal Modes in Atmospheric Acoustics. [PDF]

Entropy (Basel), 2021
Wang Y, Tu H, Liu W, Xiao W, Lan Q.
europepmc   +1 more source

Spectral function for a nonsymmetric differential operator on the half line

Electronic Journal of Differential Equations, 2017
In this article we study the spectral function for a nonsymmetric differential operator on the half line. Two cases of the coefficient matrix are considered, and for each case we prove by Marchenko's method that, to the boundary value problem, there ...
Wuqing Ning
doaj  

Transformation Operator for Sturm-Liouville Operators with Growing Potentials

Azerbaijan Journal of Mathematics
Summary: This paper considers a pair of Sturm-Liouville operators \(A=- \frac{d^2}{dx^2}+cx^{\alpha}\) and \(B=-\frac{d^2}{dx^2}+cx^{\alpha}+q(x)\) on the semi-axis \([0,\infty), c=const, \alpha \geq 1\). A transformation operator with a condition at infinity is constructed for the operators \(A\) and \(B\).
Orudzhev, E. G., Rzayeva, G. F.
openaire   +2 more sources

Multi-interval Sturm–Liouville boundary-value problems with distributional potentials

Доповiдi Нацiональної академiї наук України
We study the multi-interval boundary-value Sturm–Liouville problems with distributional potentials. For the corresponding symmetric operators boundary triplets are found and the constructive descriptions of all self-adjoint, maximal dissipative and ...
A. S. Goriunov
doaj   +1 more source

Spectral properties of non-local uniformly-elliptic operators [PDF]

, 2006
In this paper we consider the spectral properties of a class of non-local uniformly elliptic operators, which arise from the study of non-local uniformly elliptic partial differential equations. Such equations arise naturally in the study of a variety of
Niall Dodds, Fordyce A. Davidson, Davidson, Fordyce A.; id_orcid, Dodds, Niall   +3 more
core