一类半线性椭圆型方程解的可去奇点问题

2013-06-23 16:22张仕玉魏公明
上海理工大学学报 2013年1期
关键词:椭圆型上海理工大学方程解

张仕玉, 魏公明

(上海理工大学理学院,上海 200093)

一类半线性椭圆型方程解的可去奇点问题

张仕玉, 魏公明

(上海理工大学理学院,上海 200093)

通过建立不同的实验函数以及所需要的截断函数,并运用椭圆型方程的正则性理论,研究了一类半线性椭圆型方程解的可去奇点问题.得到其半线性椭圆型方程分布意义下的解,与一个定义在RN中开子集上的局部Hölder连续函数几乎处处相等的结论.

椭圆型方程;奇点;截断函数

1 问题的提出

在奇点附近解的渐进行为,进而又解决了方程

主要结果:

1 重要命题和引理

3 定理1的证明

综上,根据拟线性椭圆型方程的正则性理论[9],可知存在一个定义在Ω上局部Hölder连续的函数u′,使得u与u′在Ω′上几乎处处相等,即完成证明.

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Removable Singularities of the Solution of A Class of Semilinear Elliptic Equations

ZHANGShiyu, WEIGongming
(College of Science,University of Shanghai for Science and Technology,shanghai 200093,China)

The removable singularities of the solution of a class of semilinear elliptic equations were dealt with.The main result is that the weak solution of the equation coincides with a continuous function of the open subset of RNalmost everywhere.

elliptic equation;singularity;truncation function

O 175.2;N 94

A

1007-6735(2013)01-0037-04

0

2011-12-22

张仕玉(1987-),女,硕士研究生.研究方向:偏微分方程.E-mail:zhangshiyu04@126.com

魏公明(1974-),男,副教授.研究方向:偏微分方程.E-mail:gmweixy@163.com

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