Results 11 to 20 of about 8,983 (77)

Mathematical software for Sturm-Liouville problems

open access: yesACM Transactions on Mathematical Software, 1993
S. Pruess, C. Fulton
semanticscholar   +3 more sources

A Chebyshev Spectral Method for Normal Mode and Parabolic Equation Models in Underwater Acoustics

open access: yesMathematical Problems in Engineering, Volume 2020, Issue 1, 2020., 2020
In this paper, the Chebyshev spectral method is used to solve the normal mode and parabolic equation models of underwater acoustic propagation, and the results of the Chebyshev spectral method and the traditional finite difference method are compared for an ideal fluid waveguide with a constant sound velocity and an ideal fluid waveguide with a deep ...
Houwang Tu   +6 more
wiley   +1 more source

A practical method for recovering Sturm–Liouville problems from the Weyl function [PDF]

open access: yesInverse Problems, 2021
In the paper we propose a direct method for recovering the Sturm–Liouville potential from the Weyl–Titchmarsh m-function given on a countable set of points.
V. Kravchenko, S. Torba
semanticscholar   +1 more source

Partial Inverse Sturm-Liouville Problems

open access: yesMathematics, 2023
This paper presents a review of both classical and modern results pertaining to partial inverse spectral problems for differential operators. Such problems consist in the recovery of differential expression coefficients in some part of the domain (a ...
N. Bondarenko
semanticscholar   +1 more source

Inverse Sturm–Liouville Problem with Spectral Parameter in the Boundary Conditions

open access: yesMathematics, 2023
In this paper, for the first time, we study the inverse Sturm–Liouville problem with polynomials of the spectral parameter in the first boundary condition and with entire analytic functions in the second one.
N. Bondarenko, E. E. Chitorkin
semanticscholar   +1 more source

Algebraic evaluation of matrix elements in the Laguerre function basis [PDF]

open access: yes, 2016
The Laguerre functions constitute one of the fundamental basis sets for calculations in atomic and molecular electron-structure theory, with applications in hadronic and nuclear theory as well.
A. McCoy, M. Caprio
semanticscholar   +1 more source

Exact and Numerical Solution of the Fractional Sturm–Liouville Problem with Neumann Boundary Conditions

open access: yesEntropy, 2022
In this paper, we study the fractional Sturm–Liouville problem with homogeneous Neumann boundary conditions. We transform the differential problem to an equivalent integral one on a suitable function space.
M. Klimek, M. Ciesielski, T. Blaszczyk
semanticscholar   +1 more source

Optimal control problems of parabolic fractional Sturm-Liouville equations in a star graph [PDF]

open access: yesMathematical Control & Related Fields, 2021
In the present paper we deal with parabolic fractional initial-boundary value problems of Sturm–Liouville type in an interval and in a general star graph. We first give several existence, uniqueness and regularity results of weak and very-weak solutions.
G. Leugering   +3 more
semanticscholar   +1 more source

Vortex Structures inside Spherical Mesoscopic Superconductor Plus Magnetic Dipole

open access: yesAdvances in Mathematical Physics, Volume 2018, Issue 1, 2018., 2018
We investigate the existence of multivortex states in a superconducting mesoscopic sphere with a magnetic dipole placed at the center. We obtain analytic solutions for the order parameter Ψ(r→) inside the sphere through the linearized Ginzburg‐Landau (GL) model, coupled with mixed boundary conditions, and under regularity conditions and decoupling ...
A. Ludu, Alexander Iomin
wiley   +1 more source

A quasi-extrapolation procedure for error estimation of numerical methods in Sturm–Liouville eigenproblems

open access: yesJournal of Computational and Applied Mathematics, 2004
The authors present a method for determining the eigenvalues of a Sturm-Liouville problem based on extrapolation from the discrepancy at the middle of the interval when shooting from both ends. Numerical examples are given.
GHELARDONI, PAOLO   +2 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy