Results 31 to 40 of about 6,504,899 (285)

Mixed spectral AKNS hierarchy from linear isospectral problem and its exact solutions

Open Physics, 2015
In this paper, the AKNS isospectral problem and its corresponding time evolution are generalized by embedding three coefficient functions. Starting from the generalizedAKNS isospectral problem, a mixed spectralAKNS hierarchy with variable coefficients is
Zhang Sheng, Gao Xu-Dong
doaj   +1 more source

Review of seismic inverse scattering migration and inversion

地球与行星物理论评, 2021
With the shifting toward deeper, geologically more complex, and more subtle hydrocarbon reservoirs than before, the exploration of oil and gas resources is becoming more and more difficult.
Weijian Mao, Wuqun Li, Wei Ouyang
doaj   +1 more source

TWO-DIMENSIONAL INVERSE SCATTERING FOR QUASI-LINEAR BIHARMONIC OPERATOR [PDF]

, 2021
The subject of this work concerns the classical direct and inverse scattering problems for quasi-linear perturbations of the two-dimensional biharmonic operator.
Serov, V. (Valery), Kultima, Jaakko, Serov, Valery, Tyni, T. (Teemu), Tyni, Teemu, Harju, Markus, Kultima, J. (Jaakko), Harju, M. (Markus)   +7 more
core   +1 more source

Physics-Aware Machine-Learning-Driven Inverse Design of Broadband Ultra-Open Acoustic Metamaterials. [PDF]

Adv Sci (Weinh)
A physics‐aware machine‐learning framework enables inverse design of ultra‐open acoustic silencers by decoupling spectral and radial design spaces. The approach rapidly identifies broadband, compact, and highly ventilated architectures, while revealing hidden linear design rules that link geometry, impedance matching, and acoustic performance.
Yang Z, Li M, Xie X, Chen A, Bifano TG, Zhang X.   +5 more
europepmc   +2 more sources

The inverse scattering problem by an elastic inclusion [PDF]

Advances in Computational Mathematics, 2017
19 pages, 7 figures, 3 ...
Roman Chapko, Drossos Gintides, Leonidas Mindrinos   +2 more
openaire   +5 more sources

Subspace-Based Localization and Inverse Scattering of Multiply Scattering Point Targets

EURASIP Journal on Advances in Signal Processing, 2007
The nonlinear inverse scattering problem of estimating the locations and scattering strengths or reflectivities of a number of small, point-like inhomogeneities (targets) to a known background medium from single-snapshot active wave sensor array data is
Gruber Fred K, Marengo Edwin A
doaj   +2 more sources

Bayesian imaging inverse problem with scattering transform

Astronomy & Astrophysics
Bayesian imaging inverse problems in astrophysics and cosmology remain challenging, particularly in low-data regimes, due to complex forward operators and the frequent lack of well-motivated priors for non-Gaussian signals.
Pierre Sébastien, Allys Erwan, Richard Pablo, Soletskyi Roman, Tsouros Alexandros   +4 more
doaj   +1 more source

On the inverse scattering problem in the acoustic environment [PDF]

Journal of Computational Physics, 2009
The authors propose a numerical algorithm for the solution of an inverse scattering problem in layered acoustic media. Theoretical investigations are illustrated by several numerical examples.
Yu Chen, Ran Duan, Vladimir Rokhlin
openaire   +3 more sources

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   +2 more sources

Inverse spectral problem for Sturm-Liouville operator with higher order polynomials of spectral parameter in the boundary condition

Miskolc Mathematical Notes
This paper is concerned with an inverse scattering problem for Sturm-Liouville operator with polynomials of spectral parameter in boundary condition. We provide scattering data and present some spectral properties.
Aynur Çöl, Khanlar Mamedov
doaj   +1 more source