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arXiv 1507.08263math.OC
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无约束最优控制的高斯配置法的收敛速度

Convergence rate for a Gauss collocation method applied to unconstrained optimal control

William W. Hager, Hongyan Hou, Anil V. Rao

摘要:

研究了基于高斯求积的正交配置法求解无约束最优控制问题的局部收敛速度。若连续问题有充分光滑解且Hamilton算子满足强凸性条件,则离散问题在连续解的邻域内存在局部极小,且随着配置点数目的增加,离散解以指数超范数快速收敛于连续解.这是基于全局多项式的正交配置法应用于最优控制问题的第一个收敛速度结果。

英文摘要:

A local convergence rate is established for an orthogonal collocation method based on Gauss quadrature applied to an unconstrained optimal control problem. If the continuous problem has a sufficiently smooth solution and the Hamiltonian satisfies a strong convexity condition, then the discrete problem possesses a local minimizer in a neighborhood of the continuous solution, and as the number of collocation points increases, the discrete solution convergences exponentially fast in the sup-norm to the continuous solution. This is the first convergence rate result for an orthogonal collocation method based on global polynomials applied to an optimal control problem.

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