We obtain upper and lower estimates for positive solutions of a third-order three-point boundary-value problem. Sufficient conditions for the existence and nonexistence of positive solutions for the problem are also obtained. Then to illustrate our results, we include an example.
Yang, B. (2008). Positive solutions of a third-order three-point boundary-value problem. Electron. J. Diff. Eqns., 2008(99), 1-10.