Results 91 to 100 of about 1,276,020 (209)

Research and determination of the 1st and 2nd derivatives of the component terms of the dispersion equation for a flat two-layer one-dimensional periodic photonic crystal

Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка
Actuality. Recent decades have seen a rapid development of photonics. Therefore, scientific interest in the optical range of electromagnetic radiation continues to be relevant.
О.V. Kazanko, О.E. Penkina, V.M. Butenko, O.V. Holovko   +3 more
doaj   +1 more source

Asymptotic distribution of eigenvalues and eigenfunctions for a multi-point discontinuous Sturm-Liouville problem

Electronic Journal of Differential Equations, 2016
In this article we study a class of generalized BVP' s consisting of discontinuous Sturm-Liouville equation on finite number disjoint intervals, with usual boundary conditions and supplementary transmission conditions at finite number interior ...
Kadriye Aydemir, Oktay Sh. Mukhtarov
doaj  

Inverse spectral problems for Sturm–Liouville operators with partial information [PDF]

, 2014
In this paper, we study the inverse spectral problems for Sturm–Liouville operators with Robin boundary conditions and show that if the potential q on the interval [0,α] for some α∈[0,1) is given a priori, then the potential q on the whole interval [0,1]
Wang, Yu-Ping; Shieh, Chung-Tsun; Ma, Yan-Ting, Wang, Yu Ping   +1 more
core   +1 more source

Impedance Variation in a Coaxial Coil Encircling a Metal Tube Adapter. [PDF]

Sensors (Basel), 2023
Luo Y, Yang X.
europepmc   +1 more source

An Inverse Spectral Problem for the Matrix Sturm-Liouville Operator with a Bessel-Type Singularity

International Journal of Differential Equations, 2015
The inverse problem by the Weyl matrix is studied for the matrix Sturm-Liouville equation on a finite interval with a Bessel-type singularity in the end of the interval.
Natalia Bondarenko
doaj   +1 more source

Fragility of the Schrödinger Cat in thermal environments. [PDF]

Sci Rep, 2023
Bera S, Yip KLS, John S.
europepmc   +1 more source

Linear second-order problems with Sturm-Liouville-type multi-point boundary conditions

Electronic Journal of Differential Equations, 2012
We consider the eigenvalue problem for the equation $-u'' = lambda u$ on $(-1,1)$, together with general Sturm-Liouville-type, multi-point boundary conditions at $pm 1$. We show that the basic spectral properties of this problem are similar to those
Bryan P. Rynne
doaj  

Eigenstructure of nonselfadjoint complex discrete vector Sturm-Liouville problems

Advances in Difference Equations, 2005
We present a study of complex discrete vector Sturm-Liouville problems, where coefficients of the difference equation are complex numbers and the strongly coupled boundary conditions are nonselfadjoint.
Lucas Jódar, Rafael J. Villanueva
doaj   +1 more source

On an Inverse Scattering Problem for a Discontinuous Sturm-Liouville Equation with a Spectral Parameter in the Boundary Condition

Boundary Value Problems, 2010
An inverse scattering problem is considered for a discontinuous Sturm-Liouville equation on the half-line [0,∞) with a linear spectral parameter in the boundary condition.
Khanlar R. Mamedov
doaj   +1 more source

Computation of Eigenvalues and Eigenfunctions in the Solution of Eddy Current Problems. [PDF]

Sensors (Basel), 2023
Theodoulidis T, Skarlatos A, Tytko G.
europepmc   +1 more source