Santanilla J.Nonnegative solutions to boundary value problems for nonlinear first and second order ordinary differential equations[J].J Math Anal Appl, 1987,126: 397-408.

 
  • 赵增勤.;一类奇异次线性边值问题正解存在的充分必要条件[J]
今日热词
目录 附录 查词历史