Abstract：In this paper, we investigate the existence of symmetric positive solutions for the following second-order three-point boundary value problems:,where f:[0,1]×[0,+∞)×R→[0,+∞) is continuous;q(t) ≥ 0,t∈(0,1).
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2018, Vol. 45 
对称正解的存在性，其中f：[0，1]×[0，+∞）×R→[0，+∞）连续；q（t）≥ 0，t∈（0，1）.
,where f:[0,1]×[0,+∞)×R→[0,+∞) is continuous;q(t) ≥ 0,t∈(0,1).