【摘要】 利用锥拉伸压缩不动点定理得到四阶三点边值问题在非线形项同超线性,或一次线性一超线性情况下,有C2[0,1]和C3[0,1]正解的充分必要条件．更多还原

【Abstract】 The existence of positive solutions for singular fourth order three-point boundary value problem was investigated. A neceessary and sufficient condition for the existence of C2[0,1],C3[0, 1] positive solutions is obtained under the condition that nonlinear item are all superlinear or one is superlinear, another is sublinear by constructing with fixed point theorem of cone expansion and compression.更多还原