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半线性椭圆型偏微系统的正解的存在性(英文)
The Existence of Positive Solutions for Semilinear Elliptic System
【摘要】 E. Dancer和Lige Li近来发展了一些方法,在拓扑度理论中利用锥映射对椭圆型偏微系统证明了正解的存在性,本文改进了这些方法,建立了十分便于实际应用的一般原则,并对只有二个分量的系统得出很精致的结果,另外,还给出一些应用。
【Abstract】 Methods developed by E. Dancer and Lige Li for proving the existence of positive solutions for elliptic system by using cone mapping in the topological degree theory are improved. General principles which are much more convenient in pratical use are established. Quite elegant results are obtained for 2-component systems. Some applications are given.
【关键词】 锥映射;
拓扑度理论;
映射的指数;
椭圆型系统;
正解;
【Key words】 Cone mapping; Topological degree theory; Indices of a map; Positive solutions; Elliptic systems;
【Key words】 Cone mapping; Topological degree theory; Indices of a map; Positive solutions; Elliptic systems;
- 【文献出处】 北京大学学报(自然科学版) ,Acta Scicentiarum Naturalum Universitis Pekinesis , 编辑部邮箱 ,1992年01期
- 【被引频次】3
- 【下载频次】48