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Numerical methods for the transmission eigenvalue problems are hot topics in recent years. Based on the work of Lin and Xie [Math. Comp., 84(2015), pp. 71-88], we build a multigrid method to solve the problems. With our method, we only need…

数值分析 · 数学 2016-01-12 Jiayu Han , Yidu Yang , Hai Bi

This paper introduces a fast and numerically stable algorithm for the solution of fourth-order linear boundary value problems on an interval. This type of equation arises in a variety of settings in physics and signal processing. Our method…

数值分析 · 计算机科学 2020-01-13 William Leeb , Vladimir Rokhlin

In this article, the authors survey and review the studies of boundary value problems for regular functions in Clifford analysis, which include theoretical foundations and useful methods. Its theoretical bases consist of the generalized…

复变函数 · 数学 2025-09-16 J. Y. Du , P. Dang

This paper introduces an efficient algorithm for computing the general oscillatory matrix functions. These computations are crucial for solving second-order semi-linear initial value problems. The method is exploited using the scaling and…

数值分析 · 数学 2024-06-11 Dongping Li , Xue Wang , Xiuying Zhang

This paper discusses the use of the Riemann-Silberstein vector to solve the source-free Maxwell's equations and obtains novel analytical solutions. The solving process naturally leads to the spinor form of the source-free Maxwell's…

综合物理 · 物理学 2024-03-28 Tong Chern

This paper is concerned with the analysis of time-harmonic electromagnetic scattering from plasmonic inclusions in the finite frequency regime beyond the quasi-static approximation. The electric permittivity and magnetic permeability in the…

偏微分方程分析 · 数学 2019-01-29 Hongjie Li , Shanqiang Li , Hongyu Liu , Xianchao Wang

We study boundary value problems for degenerate elliptic equations and systems with square integrable boundary data. We can allow for degeneracies in the form of an $A_{2}$ weight. We obtain representations and boundary traces for solutions…

经典分析与常微分方程 · 数学 2014-04-16 Pascal Auscher , Andreas Rosén , David Rule

The nonlinear Schrodinger equation on the half line with mixed boundary condition is investigated. After a brief introduction to the corresponding classical boundary value problem, the exact second quantized solution of the system is…

高能物理 - 理论 · 物理学 2009-10-31 M. Gattobigio , A. Liguori , M. Mintchev

In this paper we present a methodology for increasing the accuracy and accelerating the convergence of numerical methods for solution of Maxwell's equations in the frequency domain by taking into account the be-havior of the electromagnetic…

计算物理 · 物理学 2021-06-30 Igor Semenikhin

This paper is concerned with a numerical solution to the scattering of a time-harmonic electromagnetic wave by a bounded and impenetrable obstacle in three dimensions. The electromagnetic wave propagation is modeled by a boundary value…

数值分析 · 数学 2022-02-21 Gang Bao , Mingming Zhang , Xue Jiang , Peijun Li , Xiaokai Yuan

In this paper we introduce a method for solving linear and nonlinear scattering problems for wave equations using a new hybrid approach. This new approach consists of a reformulation of the governing equations into a form that can be solved…

数值分析 · 数学 2018-07-04 Aihua Lin , Anastasiia Kuzmina , Per Kristen Jakobsen

This paper presents high-order numerical methods for solving boundary value problems associated with the Lane-Emden equation, which frequently arises in astrophysics and various nonlinear models. A major challenge in studying this equation…

数值分析 · 数学 2025-08-28 Dang Quang A , Nguyen Thanh Huong , Vu Vinh Quang

We perform quantitative spectral analysis on the Born equation, an integral equation for electromagnetic scattering that descends from the Maxwell equations. We establish norm bounds for the Green operator associated with the Born equation,…

数学物理 · 物理学 2021-10-14 Yajun Zhou

We consider discrete analogue of model pseudo-differential equations in discrete plane sector using discrete variant of Sobolev--Slobodetskii spaces. Starting from the concept of wave factorization for elliptic periodic symbol we describe…

偏微分方程分析 · 数学 2023-03-01 Vladimir Vasilyev , Anastasia Mashinets

The dependence of the smoothness of variational solutions to the first boundary value problems for second order elliptic operators are studied. The results use Sobolev-Slobodetskii and Nikolskii-Besov spaces and their properties. Methods…

偏微分方程分析 · 数学 2016-05-11 I. V. Tsylin

This paper is devoted to provide some new results on Lyapunov type inequalities for the periodic boundary value problem at higher eigenvalues. Our main result is derived from a detailed analysis on the number and distribution of zeros of…

偏微分方程分析 · 数学 2009-11-06 Antonio Canada , Salvador Villegas

We prove the solvability in Sobolev spaces $W^{1,2}_p$, $p>d+1$, of the terminal-boundary value problem for a class of fully nonlinear parabolic equations, including parabolic Bellman's equations, in bounded cylindrical domains with VMO…

偏微分方程分析 · 数学 2010-08-20 Hongjie Dong , N. V. Krylov , Xu Li

The aim of this paper is to introduce a FieldTNN-based machine learning method for solving the Maxwell eigenvalue problem in both 2D and 3D domains, including both tensor and non-tensor computational regions. First, we extend the existing…

数值分析 · 数学 2024-11-26 Jiantao Jiang , Yanli Wang , Yifan Wang , Hehu Xie

In this paper we study an inverse boundary value problem for Maxwell's equations. The goal is to reconstruct perturbations in the refractive index of the medium inside an object from the knowledge of the tangential trace of an electric…

数值分析 · 数学 2024-10-04 Jérémy Heleine

We establish $L_{q,p}$-estimates and solvability for mixed Dirichlet-conormal problems for parabolic equations in a cylindrical Reifenberg-flat domain with a rough time-dependent separation.

偏微分方程分析 · 数学 2022-07-29 Jongkeun Choi , Hongjie Dong , Zongyuan Li