The existence and uniqueness of positive solution to a kind of boundary problem are discussed.

考虑了一类二阶微分方程边值问题解的存在性和唯一性.

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Aiming at the boundary problem of wavelets transforms , an improved à trous algorithm was proposed.

针对小波分析技术存在的边界问题, 提出一种改进的多孔算法.

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