Positive solution for a fourth order boundary value problem

Yang Bo
2005

Positive solutions of the (n−1,1) conjugate boundary value problem

Yang Bo
2010

Existence and nonexistence of positive solutions of a nonlinear third order boundary value problem

Graef John R., Yang Bo
2008

Multiple positive solutions of a boundary value problem for ordinary differential equations

Graef John R., Qian Chuanxi, Yang Bo
2004

A note on the existence of oscillatory solutions of higher order neutral differential equations

Graef John R., Yang Bo, Zhang Bing Gen
2000