Results 11 to 20 of about 16,490 (305)

An Approach to Solving Direct and Inverse Scattering Problems for Non-Selfadjoint Schrödinger Operators on a Half-Line

open access: yesMathematics, 2023
In this paper, an approach to solving direct and inverse scattering problems on the half-line for a one-dimensional Schrödinger equation with a complex-valued potential that is exponentially decreasing at infinity is developed.
Vladislav V. Kravchenko   +1 more
doaj   +1 more source

Spectral, Scattering and Dynamics: Gelfand–Levitan–Marchenko–Krein Equations

open access: yesMathematics, 2023
In this paper, we consider the Gelfand–Levitan–Marchenko–Krein approach. It is used for solving a variety of inverse problems, like inverse scattering or inverse problems for wave-type equations in both spectral and dynamic formulations.
Sergey Kabanikhin   +3 more
doaj   +1 more source

Characterization of Induced Polarization Parameters from Electromagnetic Data using Evolutionary Approach [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
Electromagnetic methods are one of the most important tools for exploring the physical properties of scatterers. When the scattering object is polarizable, more information can be gained from electromagnetic measurements to determine the scatterer’s ...
Mohamed Elkattan, Aladin Kamel
doaj   +1 more source

A Conditioned Probabilistic Method for the Solution of the Inverse Acoustic Scattering Problem

open access: yesMathematics, 2022
In the present work, a novel stochastic method has been developed and investigated in order to face the time-reduced inverse scattering problem, governed by the Helmholtz equation, outside connected or disconnected obstacles supporting boundary ...
Antonios Charalambopoulos   +2 more
doaj   +1 more source

An Inverse Mixed Impedance Scattering Problem in a Chiral Medium

open access: yesMathematics, 2021
An inverse scattering problem of time-harmonic chiral electromagnetic waves for a buried partially coated object was studied. The buried object was embedded in a piecewise isotropic homogeneous background chiral material.
Evagelia S. Athanasiadou
doaj   +1 more source

Important Issues on Spectral Properties of a Transmission Eigenvalue Problem

open access: yesInternational Journal of Differential Equations, 2021
Nowadays, inverse scattering is an important field of interest for many mathematicians who deal with partial differential equations theory, and the research in inverse scattering is in continuous progress. There are many problems related to scattering by
Besiana Cobani   +2 more
doaj   +1 more source

Application of Whale Optimization Algorithm to Inverse Scattering of an Imperfect Conductor with Corners

open access: yesInternational Journal of Antennas and Propagation, 2020
In this paper, the whale optimization algorithm (WOA) is applied to the inverse scattering of an imperfect conductor with corners. The WOA is a new metaheuristic optimization algorithm. It mimics the hunting behavior of humpback whales.
Kun-Chou Lee, Pai-Ting Lu
doaj   +1 more source

Negative result of multi-frequency topological derivative based imaging in limited-aperture inverse scattering problem

open access: yesResults in Physics, 2016
A negative result of topological derivative based imaging of thin, rectangular shaped inhomogeneity with the least range of incident directions was obtained.
Won-Kwang Park
doaj   +1 more source

Using Alternating Minimization and Convexified Carleman Weighted Objective Functional for a Time-Domain Inverse Scattering Problem

open access: yesAxioms, 2023
This paper considers a 1D time-domain inverse scattering problem for the Helmholtz equation in which penetrable scatterers are to be determined from boundary measurements of the scattering data.
Nguyen Trung Thành
doaj   +1 more source

On the quantum inverse scattering problem [PDF]

open access: yesNuclear Physics B, 2000
A general method for solving the so-called quantum inverse scattering problem (namely the reconstruction of local quantum (field) operators in term of the quantum monodromy matrix satisfying a Yang-Baxter quadratic algebra governed by an R-matrix) for a large class of lattice quantum integrable models is given.
Maillet, Jean Michel   +2 more
openaire   +2 more sources

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