• Mathematics
  • Published 2003

Method of upper and lower solutions in the reversed order of periodic boundary value problems for second order differential equations

@inproceedings{Lingzhong2003MethodOU,
  title={Method of upper and lower solutions in the reversed order of periodic boundary value problems for second order differential equations},
  author={Zhang Ling-zhong},
  year={2003}
}
The existence of solutions for second order of differential equations of periodic boundary value problems is discussed. The anti-maximum principle and the monotone iterative method in case lower and upper solutions in the reversed order are applied to these problems and some existence results are obtained.