河北大学学报(自然科学版) ›› 2001, Vol. 21 ›› Issue (1): 9-16.DOI: 10.3969/j.issn.1000-1565.2001.01.004

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利用增生算子理论研究一类椭圆边值问题解的存在性

魏利1,NAN Shu-qin2,LIU Yuan-xing2   

  1. 1.河北经贸大学 基础部; 2.Department of Basic,Hebei University of Economy and Trade
  • 出版日期:2001-02-25 发布日期:2001-02-25

Research on a Solution of Elliptic Boundary Value Problems by Using Theories of Accretive Operators

WEI Li1,NAN Shu-qin2,LIU Yuan-xing2   

  • Online:2001-02-25 Published:2001-02-25

摘要: 利用Calvert和Gupta关于非线性增生算子值域的扰动结果,研究了当2≤p<+∞时,一类非线性黎曼边值问题在Lp(Ω)空间中解的存在的充分 条件 .所讨论的方程与Gupta-Hess相比更一般化,而且把解的存在性的研究由L2(Ω)空间 推广到LP(Ω)(2≤p<+∞)空间中.

关键词: 单调算子, 增生映射, demi连续映射

Abstract: By using the perturbation results on sums of ranges of nonlinear accretive operators of Calvert-Gupta,the authors study the suff icient condition of the existence of the solution of one kinds of nonlinear Neum ann boundary value problem in Lp(Ω)(2≤p<+∞).The equation discussed is more general than that of Gupta-Hess and the equation is discussed in more general space Lp(Ω)(2≤p<+∞)instead of L2(Ω).

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