... Difference Equations17 J. Henderson, A. Peterson, and C. C. Tisdell, On the existence and uniqueness of solutions toboundary value problems on time scales,” Advances in Difference Equations, vol. ... CorporationAdvances in Difference EquationsVolume 2009, Article ID 209707, 18 pagesdoi:10.1155/2009/209707 Research Article Existence Results for Higher-OrderBoundary Value Problems on Time ScalesJian Liu1and ... Difference Equations For θ 1/4, it is easy to see thatλ ∈2θ∗θ, ∞, 4.7so condition A4 holds. Then by Theorem 3.2,BVP4.1 has at least one positive solution.Example 4.2. Consider the...