Singular Boundary Value Problems for Superlinear Second Order Ordinary and Delay Differential Equations

  title={Singular Boundary Value Problems for Superlinear Second Order Ordinary and Delay Differential Equations},
  author={Ravi P. Agarwal and Donal O’Regan},
  journal={Journal of Differential Equations},
Abstract Existence criteria are established for singular boundary value problems for nonlinear second order ordinary and delay differential equations. The theorems obtained are very general and complement previous known results. 

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