The Method of Lower and Upper Solutions for Fourth-Order Two-Point Boundary Value Problems

@article{Ruyun1997TheMO,
  title={The Method of Lower and Upper Solutions for Fourth-Order Two-Point Boundary Value Problems},
  author={Ma Ru-yun and Zhang Jihui and Fu Shengmao},
  journal={Journal of Mathematical Analysis and Applications},
  year={1997},
  volume={215},
  pages={415-422}
}
Abstract In this paper we develop the monotone method in the presence of lower and upper solutions for the problem u (IV) = f(x, u(x), u″(x)), u(0) = u(1) = u″(0) = u″(1) = 0, where f : [0, 1] ×  R  ×  R  →  R is continuous. 

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