%0 Journal Article %T Existence and Uniqueness of Positive Solutions for Discrete Fourth-Order Lidstone Problem with a Parameter %A Yanbin Sang %A Zhongli Wei %A Wei Dong %J Advances in Difference Equations %D 2010 %I Springer %R 10.1155/2010/971540 %X This work presents sufficient conditions for the existence and uniqueness of positive solutions for a discrete fourth-order beam equation under Lidstone boundary conditions with a parameter; the iterative sequences yielding approximate solutions are also given. The main tool used is monotone iterative technique. %U http://dx.doi.org/10.1155/2010/971540