1.
Natural Boundary Element Method for Exterior Helmholtz Problem with Prolate Spheroid Boundary;
椭球边界Helmholtz外问题的自然边界元法
2.
The Virtual Boundary Element Method for Exterior Problems of the 3-D Helmholtz Equation
三维Helmholtz方程外边值问题的虚边界元法
3.
The method of fundamental solutions for 3D Helmholtz exterior problem of underwater rigid objects
基本解方法解水下刚性目标三维Helmholtz外散射问题
4.
Galerkin Boundary Element Method for Exterior Problems of the 2-D Helmholtz Equation for All Wavenumbers
任意波数的二维Helmholtz方程外边值问题的Galerkin边界元法
5.
On Helmholtz Equation with Mixed Boundary Conditions
Helmholtz方程的一类混合边值问题的研究
6.
A Simple Regularization Method for the Cauchy Problem of Helmholtz-type Equations
Helmholtz型方程柯西问题的一种简单正则化
7.
Meshless Method for Helmholtz Problem and Elliptic Variational Inequalities Problem;
Helmholtz问题和椭圆型变分不等式问题的无网格法
8.
The Existence and Uniqueness of the Solution for Mixed Boundary Value Problem of Helmholtz Equation;
Helmholtz方程混合边值问题解的存在性和唯一性
9.
Research on Meshless Methods and Its Application in Helmholtz Problems;
无网格法的理论研究及其在Helmholtz问题中的应用
10.
Existence and Uniqueness of a Solution to the Helmholtz Equation with Mixed Boundary Conditions
一类Helmholtz方程混合边值问题解的存在唯一性
11.
The Research of Helmholtz Equation with Mixed Boundary Conditions on Annular Region
环形区域上Helmholtz方程混合边值问题的研究
12.
Some Regularization Methods for the Cauchy Problem for the Helmholtz Equation in the Rectangular Region
矩形区域上Helmholtz方程Cauchy问题的几种正则化方法
13.
Preconditioned Iterative Method for Robbins Issue of the Two-dimension Helmholtz Equation
二维Helmholtz方程的Robbins问题的预条件迭代方法
14.
Existence and Uniqueness for the Dirichlet Problem of the Helmholtz Equation on Unsmoothed Domain;
Helmholtz方程在不光滑区域上Dirichlet问题解的存在及唯一性
15.
A new boundary integral-differential equation for three dimensional Helmholtz equation and its boundary element methods
三维Helmholtz方程边值问题的新型边界积分-微分方程及其边界元解法
16.
But that is another story.
但那是另外一个问题，那是题外的话。
17.
In addition to the main question, there are secondary matters to talk about.
除主要问题之外，还有些次要问题讨论。
18.
Problems always lead to other problems.
有些问题总是连带着另外的问题。