Baleanu, DumitruJarad, Fahd2020-04-102020-04-102006Baleanu, dumitru; Jarad, Fahd, "Difference discrete variational principles", Mathematical Analysis And Applications, Vol.835, (2006).7354032870094-243Xhttps://hdl.handle.net/20.500.12416/3069The paper provides the discrete Lagrangian and Hamiltonian formulations of mechanical systems for both non-singular and singular cases. The Lagrangians with linear velocities and with higher velocities are investigated and the corresponding difference Euler-Lagrange equations and Hamiltonians are found.eninfo:eu-repo/semantics/closedAccessDiscrete MathematicsVariational Principles