Results 51 to 60 of about 15,028 (168)

Inverse spectral problems for energy-dependent Sturm-Liouville equations with finitely many point delta-interactions

Electronic Journal of Differential Equations, 2016
In this study, inverse spectral problems for a energy-dependent Sturm-Liouville equations with finitely many point $\delta $-interactions. The uniqueness theorems for the inverse problems of reconstruction of the boundary value problem from the Weyl ...
Manaf Dzh. Manafov
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Global solvability of the inverse spectral problem for differential systems on a finite interval [PDF]

Известия Саратовского университета. Новая серия: Математика. Механика. Информатика
The inverse spectral problem is studied for non-selfadjoint systems of ordinary differential equations on a finite interval. We provide necessary and sufficient conditions for the global solvability of the inverse problem, along with an algorithm for ...
Yurko, Vjacheslav Anatol'evich
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On the question of the correctness of inverse problems for the inhomogeneous Helmholtz equation

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018
In the rectangular domain, the initial-boundary value problem for the Helmholtz equation and its non-local modifications are studied and the inverse problems for finding its right-hand side are studied.
Kamil B Sabitov, Nina V Martem’yanova
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Asymptotic inverse spectral problem for anharmonic oscillators

Communications in Mathematical Physics, 1987
The paper studies the direct and inverse spectral problem for perturbations \(L=A+B\) of the harmonic oscillator \(A=()(-\partial^ 2+x^ 2)\) on \({\mathbb{R}}\), where potential B(x) has a prescribed asymptotics at \(\{\infty \}\), \(B(x)\sim | x|^{-\alpha}V(x)\), with a trigonometric function \(V(x)=\sum a_ m \cos \omega_ mx.\) The k-th eigenvalue of ...
openaire   +3 more sources

New Textural Indicators for Assessing Above-Ground Cotton Biomass Extracted from Optical Imagery Obtained via Unmanned Aerial Vehicle

Remote Sensing, 2020
Although textural information can be used to estimate vegetation biomass, its use for estimating crop biomass is rare, and previous methods lacked a mechanistic explanation for the relationship to biomass.
Pengfei Chen, Fangyong Wang
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High Accurate and Efficient 3D Network for Image Reconstruction of Diffractive-Based Computational Spectral Imaging

IEEE Access
Diffractive optical imaging spectroscopy as a promising miniaturized and high throughput portable spectral imaging technique suffers from the problem of low precision and slow speed, which limits its wide use in various applications.
Hao Fan, Chenxi Li, Huangrong Xu, Lvrong Zhao, Xuming Zhang, Heng Jiang, Weixing Yu   +6 more
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Inverse spectral problems for Bessel operators

Journal of Differential Equations, 2007
Necessary and sufficient conditions are given for the solvability of the inverse spectral problem for a class of Bessel differential operators on a finite interval.
Albeverio, S., Hryniv, R., Mykytyuk, Ya.
openaire   +2 more sources

Spatial-Temporal, Parallel, Physics-Informed Neural Networks for Solving Forward and Inverse PDE Problems via Overlapping Domain Decomposition

Aerospace Research Communications
Physics-informed neural networks (PINNs) have emerged as an effective tool for solving both forward and inverse partial differential equation (PDE) problems.
Hongwei Ye, Chuanfu Xu, Yuanye Zhou, Xuhui Meng   +3 more
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A space-time least-squares support vector regression scheme for inverse source problem of the time-fractional wave equation [PDF]

Iranian Journal of Numerical Analysis and Optimization
The inverse problems in various fields of applied sciences and industrial design are concerned with the estimation of parameters that cannot be directly measured.
A. Mohammadi, A. Tari Marzabad
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THE DEVELOPMENT OF STUDENTS APPLIED MATHEMATICAL THINKING IN TEACHING INVERSE AND ILL-POSED PROBLEMS

RUDN Journal of Informatization in Education, 2017
In the article the author draws the reader’s attention to the fact that, while mastering the process of learning the theory and methodology of inverse and ill-posed problems, students not only form the fundamental knowledge in the field of inverse and ...
V S Kornilov
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