一类二阶微分方程三点边值问题对称解的存在性Symmetric Positive Solutions for Three Point Boundary Value Problems of Second Order Differential Equations
宋姝,张玲玲
摘要(Abstract)：
讨论了边值问题-un=ω(t)f(t,u(t)),u(1)u′(0)-u′(1)=u(12).当ω(t),f(t,u)满足适当的条件时,根据Leggett-William s三解定理,得到了这类边值问题三解存在的充分条件,改进了相关文献的结论。
关键词(KeyWords)： Leggett-Williams三解定理;对称正解;三点边值问题
基金项目(Foundation): 山西省自然科学基金(2007011012)
作者(Author): 宋姝,张玲玲
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