1 Outline for this Module Slide 1 Overview of Integral Equation Methods Important for many exterior problems (Fluids, Electromagnetics, Acoustics) Quadrature and Cubature for computing integrals One and Two dimensional basics Dealing with Singularities 1st and 2nd Kind Integral Equations

Goals Theory A priori A priori error estimates N1 bound various“ measures” of u exact]-un [approximate] in terms of C(n, problem parameters h [mesh diameter, and u

Formulations Model problem Strong Formulation Find u such that Vu=f in n2 a =0 on I for a polygonal domain

Outline Reminder about 1-D 1st and 2nd Kind egns Three-D Laplace Problems Interior Neumann Problem Null space issue First Kind Theory for 3-D Laplace Informal Convergence Theory

Laplace Problems Exterior Radiation Condition Green’s function Ansatz or Indirect Approach Single and Double Layer Potentials First and Second Kind Equations Greens Theorem Approach First and Second Kind Equations

麻省理工学院：偏微分方程式数字方法（英文版）_lec26

信息送与編码 通信的目的是要把对方不知道的消息及时可靠地(有时是 秘密地)传送给对方

8.7 QTQ02型电缆探测器测试方法综述 8.7.1 电缆探测器用途及基本原理 8.7.2 QTQ02型电缆探测器介绍 8.7.3 QTQ02型电缆探测器使用方法

第一节 选择的概念 第二节 质量性状的选择 第三节 数量性状的选择 第四节 选择的方法

1.全塑电缆接续套管及其安装的技术要求 2.热缩套管的型号、选用及其封合方法 3.热注塑套管的型号、选用及其封合方法 4.剖管灌注封合法