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非连续三点边值问题在非共振条件下的弱解
引用本文:林晓洁,刘文斌.非连续三点边值问题在非共振条件下的弱解[J].徐州师范大学学报(自然科学版),2008,26(2):30-33.
作者姓名:林晓洁  刘文斌
作者单位:1. 中国矿业大学,理学院,江苏,徐州,221008;徐州师范大学,数学科学学院,江苏,徐州,221116
2. 中国矿业大学,理学院,江苏,徐州,221008
基金项目:国家自然科学基金 , 徐州师范大学校科研和教改项目 , 徐州师范大学优秀青年骨干教师项目
摘    要:运用Tarski不动点定理,研究二阶三点非连续边值问题u″(t)=f(t,u(t),u′(t)),a.e.t∈I=0,1],u(0)=0,u(1)=ξu(η),其中ξ〉0,0〈η〈1,满足非共振条件0〈ξη〈1,得到了新的弱解的存在性结果.

关 键 词:三点边值问题  弱解  完备格  不动点

Weak Solutions for Discontinuous Three-point Boundary Value Problems at Non-resonance Case
LIN Xiao-jie,LIU Wen-bin.Weak Solutions for Discontinuous Three-point Boundary Value Problems at Non-resonance Case[J].Journal of Xuzhou Normal University(Natural Science Edition),2008,26(2):30-33.
Authors:LIN Xiao-jie  LIU Wen-bin
Institution:LIN Xiao-jie,LIU Wen-bin (1.School of Sciences,China University of Mining & Technology,Xuzhou,Jiangsu,221008,China;2.School of Mathematical Science,Xuzhou Normal University,Xuzhou,Jiangsu,221116,China)
Abstract:Using the Tarski fixed-point theorem,we study the second-order discontinuous three-point boundary value problem u″(t) = f(t,u(t),u′(t)),a.e.,t∈I=0,1],u(0) = 0,u(1)=ξu(η),where ξ〉0,0〈η〈1,such that the non-resonance condition 0〈ξη〈1,and the existence result of weak solutions for the problem is obtained.
Keywords:three-point boundary value problem  weak solution  complete lattice  fixed point
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