The existence of $n$ positive solutions is established for second-order multi-point boundary value problem at resonance where $n$ is an arbitrary natural number. The proof is based on a theory of fixed point index for A-proper semilinear operators defined on cones due to Cremins.
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机译:为共振时的二阶多点边值问题建立了$ n $正解的存在性,其中$ n $是任意自然数。该证明是基于Cremins在圆锥上定义的A适当半线性算子的不动点索引理论。
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