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We develop a general strategy in order to implement (approximate) discrete transparent boundary conditions for finite difference approximations of the two-dimensional transport equation. The computational domain is a rectangle equipped with…

Analysis of PDEs · Mathematics 2019-09-12 Christophe Besse , Jean-François Coulombel , Pascal Noble

We consider the problem of constructing transparent boundary conditions for the time-dependent Schr\"odinger equation with a compactly supported binding potential and, if desired, a spatially uniform, time-dependent electromagnetic vector…

Numerical Analysis · Mathematics 2019-07-08 Jason Kaye , Leslie Greengard

The transparent boundary condition for the free Schr\"{o}dinger equation on a rectangular computational domain requires implementation of an operator of the form $\sqrt{\partial_t-i\triangle_{\Gamma}}$ where $\triangle_{\Gamma}$ is the…

Numerical Analysis · Mathematics 2024-07-11 Samardhi Yadav , Vishal Vaibhav

In this paper, we introduce artificial boundary conditions for the linearized Green-Naghdi system of equations. The derivation of such continuous (respectively discrete) boundary conditions include the inversion of Laplace transform…

Analysis of PDEs · Mathematics 2017-10-12 M Kazakova , P Noble

In this paper exact 1D transparent boundary conditions (TBC) for the 2D parabolic wave equation with a linear or a quadratic dependence of the dielectric permittivity on the transversal coordinate are reported. Unlike the previously derived…

Classical Physics · Physics 2016-10-28 R. M. Feshchenko , A. V. Popov

We propose a general approach for deriving transparent boundary conditions for the stationary Schroedinger equation with arbitrary potential. It is proven that the transparent boundary conditions can be written in terms of the…

Mathematical Physics · Physics 2024-10-15 V. A. Derkach , C. Trunk , J. R. Yusupov , D. U. Matrasulov

This paper addresses the numerical implementation of the transparent boundary condition (TBC) and its various approximations for the free Schr\"odinger equation on a rectangular computational domain. In particular, we consider the exact TBC…

Numerical Analysis · Mathematics 2024-05-28 Samardhi Yadav , Vishal Vaibhav

Aim of the paper is to study non-local dynamic boundary conditions of reactive-diffusive type for the Laplace equation from analytic and probabilistic point of view. In particular, we provide compact and probabilistic representation of the…

Probability · Mathematics 2024-12-09 Raffaela Capitanelli , Mirko D'Ovidio

The aim of this article is to propose a systematic study of transparent boundary conditions for finite difference approximations of evolution equations. We try to keep the discussion at the highest level of generality in order to apply the…

Numerical Analysis · Mathematics 2016-09-23 Jean-François Coulombel

In this article, we discuss the efficient ways of implementing the transparent boundary condition (TBC) and its various approximations for the free Schr\"{o}dinger equation on a hyperrectangular computational domain in $\field{R}^d$ with…

Numerical Analysis · Mathematics 2024-08-27 Samardhi Yadav , Vishal Vaibhav

We consider the reflectionless transport of sine-Gordon solitons on a line. Transparent boundary conditions for the sine-Gordon equation on a line are derived using the so-called potential approach. Our numerical implementation of these…

Exactly Solvable and Integrable Systems · Physics 2020-11-30 K. K. Sabirov , J. R. Yusupov , M. Ehrhardt , D. U. Matrasulov

We consider the problem of reflectionless propagation of PT-symmetric solitons described by the nonlocal nonlinear Schroedinger equation on a line in the framework of the concept of transparent boundary conditions for evolution equations.…

Exactly Solvable and Integrable Systems · Physics 2023-01-25 M. E. Akramov , J. R. Yusupov , M. Ehrhardt , H. Susanto , D. U. Matrasulov

Maxwell's equations are considered with transparent boundary conditions, for initial conditions and inhomogeneity having support in a bounded, not necessarily convex three-dimensional domain or in a collection of such domains. The numerical…

Numerical Analysis · Mathematics 2020-10-21 Balázs Kovács , Christian Lubich

Building upon recent results obtained in [7,8,9], we describe an efficient second order, A-stable scheme for solving the wave equation, based on the method of lines transpose (MOL$^T$), and the resulting semi-discrete (i.e. continuous in…

Numerical Analysis · Mathematics 2015-12-17 Matthew Causley , Andrew Christlieb , Eric Wolf

In this paper an exact transparent boundary condition (TBC) for the multidimensional Schr\"odinger equation in a hyperrectangular computational domain is proposed. It is derived as a generalization of exact transparent boundary conditions…

Mathematical Physics · Physics 2021-08-18 R. M. Feshchenko , A. V. Popov

Systems of N = 1, 2, . . . first-order hyperbolic conservation laws feature N undamped waves propagating at finite speeds. On their own hand, multi-step Finite Difference and lattice Boltzmann schemes with q = N + 1, N + 2, . . . unknowns…

Numerical Analysis · Mathematics 2026-02-11 Thomas Bellotti

Local perturbations of an infinitely long rod go away to infinity. On the contrary, in the case of a finite length of the rod, the perturbations reach its boundary and are reflected from it. The boundary conditions constructed here for the…

Numerical Analysis · Mathematics 2020-07-15 Vladimir A. Gordin , Aleksandr A. Shemendyuk

In this paper, we consider artificial boundary conditions for the linearized mixed Korteweg-de Vries (KDV) Benjamin-Bona-Mahoney (BBM) equation which models water waves in the small amplitude, large wavelength regime. Continuous…

Analysis of PDEs · Mathematics 2017-06-28 Christophe Besse , Pascal Noble , David Sanchez

This paper focuses on the numerical solution of a dual-phase-lag heat conduction equation on a space unbounded domain. First, based on the Laplace transform and the Pad\'e approximation, a high-order local artificial boundary condition is…

Numerical Analysis · Mathematics 2025-11-10 Weiping Bu , Zhengfang Xie , Yushi Wang

The goal of the present work is to solve a linear dispersive equation with variable coefficient advection on an unbounded domain. In this setting, transparent boundary conditions are vital to allow waves to leave (or even re-enter) the,…

Numerical Analysis · Mathematics 2021-06-09 Lukas Einkemmer , Alexander Ostermann , Mirko Residori
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