Calculus of Variations on Time Scales with Nabla Derivatives
arXiv:0807.2596 · doi:10.1016/j.na.2008.11.035
Abstract
We prove a necessary optimality condition of Euler-Lagrange type for variational problems on time scales involving nabla derivatives of higher-order. The proof is done using a new and more general fundamental lemma of the calculus of variations on time scales.
Partially presented at the Fifth World Congress of Nonlinear Analysts (WCNA-2008), Orlando, Florida, July 2-9, 2008