A general form for solvable linear time varying singular systems of differential equations
SIAM Journal on Mathematical Analysis
Direct and indirect methods for trajectory optimization
Annals of Operations Research - Special issue on nonlinear methods in economic dynamics and optimal control: Gmo¨or-series No. 2
Collocation software for boundary value differential-algebraic equations
SIAM Journal on Scientific Computing
Exploiting Invariants in the Numerical Solution of Multipoint Boundary Value Problems for DAE
SIAM Journal on Scientific Computing
Some comments on DAE theory for IRK methods and trajectory optimization
Journal of Computational and Applied Mathematics - Special issue on SQP-based direct discretization methods for practical optimal control problems
Singular Control Systems
Direct transcription solution of higher-index optimal control problems and the virtual index
Applied Numerical Mathematics
Practical Methods for Optimal Control and Estimation Using Nonlinear Programming
Practical Methods for Optimal Control and Estimation Using Nonlinear Programming
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The development of numerical methods for finding optimal solutions of control problems modeled by differential-algebraic equations (DAEs) is an important task. Usually restrictions are placed on the DAE such as being semi-explicit. Here the numerical solution of optimal control problems with linear time-varying DAEs as the process and quadratic cost functionals is considered. The leading coefficient is allowed to be time-varying and the DAE may be of higher index. Both a direct transcription approach and the solution of the necessary conditions are examined for two important discretizations.