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This paper examines the Laplace equation with mixed boundary conditions, the Neumann and Steklov boundary conditions. This models a container with holes in it, like a pond filled with water but partly covered by immovable pieces on the…

Mathematical Physics · Physics 2020-02-19 Habib Ammari , Kthim Imeri , Nilima Nigam

In this paper we consider a Robin problem for the Klein-Gordon equation in a doubly connected domain. The solution domain considered is a bounded smooth doubly connected planar domain bounded by two simple disjoint closed curves. The…

Numerical Analysis · Mathematics 2017-03-02 Myroslav Kryven

We give explicit integral formulas for the solutions of planar conjugate conductivity equations in a circular domain of the right half-plane with conductivity $\sigma(x,y)=x^p$, $p\in\mathbb{Z}$. The representations are obtained via a…

Complex Variables · Mathematics 2015-04-30 Slah Chaabi , Stéphane Rigat , Franck Wielonsky

In this paper, we present numerical methods to implement the probabilistic representation of third kind (Robin) boundary problem for the Laplace equations. The solution is based on a Feynman-Kac formula for the Robin problem which employs…

Numerical Analysis · Mathematics 2016-10-31 Yijing Zhou , Wei Cai

We deal with probabilistic numerical solutions for linear elliptic equations with Neumann boundary conditions in a Lipschitz domain, by using a probabilistic numerical scheme introduced by Milstein and Tretyakov based on new numerical layer…

Probability · Mathematics 2024-07-08 Oana Lupascu-Stamate , Vasile Stanciulescu

We study boundary integral formulations for an interior/exterior initial boundary value problem arising from the thermo-elasto-dynamic equations in a homogeneous and isotropic domain. The time dependence is handled, based on Lubich's…

Numerical Analysis · Mathematics 2020-10-13 George C. Hsiao , Tonatiuh Sánchez-Vizuet

We present an integral equation-based method for the numerical solution of two-point boundary value systems. Special care is devoted to the mathematical formulation, namely the choice of the background Green's function that leads to a…

Numerical Analysis · Mathematics 2025-10-09 Tianze Zhang , Yixuan Ma , Jun Wang

We study a new approach to the problem of transparent boundary conditions for the Helmholtz equation in unbounded domains. Our approach is based on the minimization of an integral functional arising from a volume integral formulation of the…

Analysis of PDEs · Mathematics 2015-06-12 Giulio Ciraolo , Francesco Gargano , Vincenzo Sciacca

Boundary integral equations are an efficient and accurate tool for the numerical solution of elliptic boundary value problems. The solution is expressed as a layer potential; however, the error in its evaluation grows large near the…

Numerical Analysis · Mathematics 2013-10-22 Alex H. Barnett

We consider three problems for the Helmholtz equation in interior and exterior domains in R^d (d=2,3): the exterior Dirichlet-to-Neumann and Neumann-to-Dirichlet problems for outgoing solutions, and the interior impedance problem. We derive…

Analysis of PDEs · Mathematics 2015-10-07 Dean Baskin , Euan Spence , Jared Wunsch

In this paper, we prove the existence of a classical solution to a Neumann boundary problem for Hessian equations in uniformly convex domain. The methods depend upon the established of a priori derivative estimates up to second order. So we…

Analysis of PDEs · Mathematics 2024-04-22 Xi-Nan Ma , Guohuan Qiu

In this paper, we present a stochastic method for the simulation of Laplace's equation with a mixed boundary condition in planar domains that are polygonal or bounded by circular arcs. We call this method the Reflected Walk-on-Spheres…

Numerical Analysis · Mathematics 2024-07-10 Qiansheng Han , Antti Rasila , Tommi Sottinen

We consider the Dirichlet-to-Neumann mapping and the Neumann problem for the Laplace operator on a torus, given in toroidal coordinates. The Dirichlet-to-Neumann mapping is expressed with respect to series expansions in toroidal harmonics…

Analysis of PDEs · Mathematics 2024-10-08 Z. Ashtab , J. Morais , R. M. Porter

A piecewise continuous biharmonic problem in domains with corner points and a corresponding Schwarz type boundary value problem for monogenic functions in a commutative biharmonic algebra are considered. A method for reducing the problems…

Complex Variables · Mathematics 2025-04-25 S. V. Gryshchuk , S. A. Plaksa

A Neural Network (NN) based numerical method is formulated and implemented for solving Boundary Value Problems (BVPs) and numerical results are presented to validate this method by solving Laplace equation with Dirichlet boundary condition…

Machine Learning · Computer Science 2019-09-25 Sethu Hareesh Kolluru

In Boundary Element Method, Green's function with no boundary conditions is used for solving Laplace's equation with Dirichlet boundary condition. To determine the gradient of solution on the boundary, we need to solve the boundary integral…

Analysis of PDEs · Mathematics 2011-11-29 Harry Yosh

A spectral method is described for solving coupled elliptic problems on an interior and an exterior domain. The method is formulated and tested on the two-dimensional interior Poisson and exterior Laplace problems, whose solutions and their…

Numerical Analysis · Mathematics 2007-11-22 Piotr Boronski

A non-singular formulation of the boundary integral method (BIM) is presented for the Laplace equation whereby the well-known singularities that arise from the fundamental solution are eliminated analytically. A key advantage of this…

Numerical Analysis · Mathematics 2019-10-04 Q. Sun , E. Klaseboer , B. C. Khoo , D. Y. C. Chan

Writing the boundary integral equation for an exterior problem of elasticity is subordinate so far to hypotheses on the asymptotical behaviour at infinity of solutions. The sufficient conditions met in the literature are too restrictive and…

Classical Physics · Physics 2009-11-13 Alain Corfdir , Guy Bonnet

A new transform-based approach is presented that can be used to solve mixed boundary value problems for Laplace's equation in non-convex and other planar domains, specifically the so-called Lipschitz domains. This work complements Crowdy…

Complex Variables · Mathematics 2025-07-30 Jesse J. Hulse , Loredana Lanzani , Stefan G. Llewellyn Smith , Elena Luca