【摘要】 本文研究了奇异三阶微分方程边值问题这里允许f（t，u）在u＝0处具有奇性。用锥不动点定理证明了该问题正解的存在性。更多还原

【Abstract】 We consider the existence of positive solutions to a singular BVP for third-older differential.where f may be singular at u=0. Our proofs are quite simple and are based on a fixed point theorem in a cone.更多还原