Rc. Brown et al., Some Opial, Lyapunov, and De laValee Poussin inequalities with nonhomogeneous boundary conditions, J INEQUAL A, 5(1), 2000, pp. 11-37
We derive Opial-type inequalities for a class of real functions satisfying
nonhomogenous boundary conditions and determine the best constant and extre
mals. The results are then used to obtain generalized Lyapunov and De la Va
lee Poussin inequalities.