We establish the existence of positive solutions for singular boundary value problems of coupled systems? The proof relies on Schauder’s fixed point theorem. Some recent results in the literature are generalized and improved.
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机译:Finite Type System of Partial Differential Operators and Decomposition of Solutions of Partial Differential Equations (位相解析的方法による偏微分方程式论研究会及び散乱理论の数学研究会报告集)