| W. Roemisch and M. Baguer. Computing gradients in parametrization- discretization schemes for constrained optimal control problems, 1994. |
.... : Forget the dependence of h on u; and after the calculation of the complete discrete solution x i ; when we already know the used steps h i ; calculate the gradient rJ hk (u) of the function J hk (u) x N ] where xN is given by (88) to (91) Formulas for this gradient are well known (see [13] or [9] but is precisely here where the global convergence of any optimization algorithm, applied for the solution of the subproblem (84) can t be ensured. At each step k and each time when we calculate approximated values and gradients of J; we change the discrete model (because different steps ....
.- Roemish, W.; M.L. Baguer, Computing gradients in parametrization- discretization schemes for constrained optimal control problems. Technical report No. 508, Humboldt University-Berlin, 1994.
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W. Roemisch and M. Baguer. Computing gradients in parametrization- discretization schemes for constrained optimal control problems, 1994.
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