Results 91 to 100 of about 13,845 (157)

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

Electronic 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  

Optimal data acquisition in tomography. [PDF]

J Opt Soc Am A Opt Image Sci Vis, 2023
Javidan M, Esfandi H, Anderson R, Pashaie R.   +3 more
europepmc   +1 more source

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

Data-driven discovery of Green's functions with human-understandable deep learning. [PDF]

Sci Rep, 2022
Boullé N, Earls CJ, Townsend A.
europepmc   +1 more source

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

Spectrum and resolvent of multi-channel systems with internal energies and common boundary conditions

Қарағанды университетінің хабаршысы. Математика сериясы
In the article the spectrum and resolvent of the so-called multichannel systems with nonzero internal energies were investigated. The spectrum and resolvent of multichannel Sturm-Liouville systems with non-zero internal energies mi2 and general boundary
A.A. Valiyev, M.B. Valiyev, E.H. Huseynov   +2 more
doaj   +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  

A three-dimensional fractional solution for air contaminants dispersal in the planetary boundary layer. [PDF]

Heliyon, 2021
Tankou Tagne AS, Ele Abiama P, Ema'a Ema'a JM, Owono Ateba P, Ben-Bolie GH.   +4 more
europepmc   +1 more source

Existence of positive solutions for systems of nonlinear Sturm-Liouville differential equations with weight functions

Electronic Journal of Differential Equations, 2019
This article concerns the existence of component-wise positive solutions for systems of nonlinear Sturm-Liouville differential equations with weight functions, in which one nonlinear term is uniformly superlinear or uniformly sublinear, and the other ...
Jinfang He, Lu Yang
doaj  

Dynamical behaviours and stability analysis of a generalized fractional model with a real case study. [PDF]

J Adv Res, 2023
Baleanu D, Arshad S, Jajarmi A, Shokat W, Ghassabzade FA, Wali M.   +5 more
europepmc   +1 more source