Results 81 to 90 of about 5,769 (217)

Some estimates for the minimal eigenvalue of the Sturm-Liouville problem with third-type boundary conditions [PDF]

open access: yes, 2011
summary:We consider the Sturm-Liouville problem with symmetric boundary conditions and an integral condition.
Karulina, Elena
core   +1 more source

Analytical and experimental study for characteristic analysis of permanent magnet linear synchronous machines with horizontally magnetized PMs

open access: yesAIP Advances, 2020
This paper deals with analytical and experimental study of permanent magnet linear synchronous machines with horizontally magnetized permanent magnets.
Kyung-Hun Shin   +4 more
doaj   +1 more source

A partial inverse problem for non-self-adjoint Sturm–Liouville operators with a constant delay

open access: yes
In this paper we study a partial inverse spectral problem for non-self-adjoint Sturm–Liouville operators with a constant delay and show that subspectra of two boundary value problems with one common boundary condition are sufficient to determine the ...
Wang, Yu Ping;Keskin, Baki;Shieh, Chung-Tsun
core   +1 more source

The study of Jacobi and cyclic Jacobi matrix eigenvalue problems using Sturm–Liouville theory

open access: yes, 2011
We study the eigenvalues of matrix problems involving Jacobi and cyclic Jacobi matrices as functions of certain entries. Of particular interest are the limits of the eigenvalues as these entries approach infinity.
Kong, Qingkai, Zettl, Anton
core   +1 more source

Asymptotic Behaviour of Eigenvalues and Eigenfunctions of a Sturm-Liouville Problem with Retarded Argument

open access: yesJournal of Applied Mathematics, 2013
In the present paper, a discontinuous boundary-value problem with retarded argument at the two points of discontinuities is investigated. We obtained asymptotic formulas for the eigenvalues and eigenfunctions.
Erdoğan Şen   +2 more
doaj   +1 more source

Constants in the oscillation theory of higher order Sturm-Liouville differential equations

open access: yesElectronic Journal of Differential Equations, 2002
We find the the exact value of a constant in some oscillation criteria for the higher order Sturm-Liouville differential equation $$ (-1)^{n}(t^alpha y^{(n)})^{(n)}=q(t)y . $$ We also study some general aspects in the oscillation theory of this equation.
Ondrej Dosly
doaj  

Mixed boundary value problems involving Sturm–Liouville differential equations with possibly negative coefficients

open access: yesBoundary Value Problems
This paper is devoted to the study of a mixed boundary value problem for a complete Sturm–Liouville equation, where the coefficients can also be negative. In particular, the existence of infinitely many distinct positive solutions to the given problem is
Gabriele Bonanno   +2 more
doaj   +1 more source

A Study of the Generalized Gabor Transform with Applications to Reproducing Kernel Theory

open access: yesMathematics
The aim of this paper is to establish an inversion and Calderón formulas for the generalized Gabor transform associated with a class of Sturm–Liouville operators.
Saifallah Ghobber, Hatem Mejjaoli
doaj   +1 more source

Phase transition in anisotropic holographic superfluids with arbitrary dynamical critical exponent z and hyperscaling violation factor $$\alpha $$ α

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
Einstein-scalar-U(2) gauge field theory is considered in a spacetime characterized by $$\alpha $$ α and z, which are the hyperscaling violation factor and the dynamical critical exponent, respectively.
Miok Park, Jiwon Park, Jae-Hyuk Oh
doaj   +1 more source

Relative oscillation theory and essential spectra of Sturm--Liouville operators

open access: yes, 2022
We develop relative oscillation theory for general Sturm-Liouville differential expressions of the form \[ \frac{1}{r}\left(-\frac{\mathrm d}{\mathrm dx} p \frac{\mathrm d}{\mathrm dx} + q\right) \] and prove perturbation results and invariance of ...
Behrndt, Jussi   +3 more
core   +1 more source

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