A fixed point theorem in cone is used to study the existence of normal solution of second-order periodic boundary value problems.
利用锥不动点定理研究了一类二阶非线性周期边值问题正解的存在性。
A fixed point theorem in cone is used to study the existence of normal solution of second-order periodic boundary value problems.
利用锥不动点定理研究了一类二阶非线性周期边值问题正解的存在性。
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