# Asymptotic expansions for interior penalty solutions of control constrained linear-quadratic problems

2 C&O - Equipe combinatoire et optimisation
IMJ-PRG - Institut de Mathématiques de Jussieu - Paris Rive Gauche
3 Commands - Control, Optimization, Models, Methods and Applications for Nonlinear Dynamical Systems
UMA - Unité de Mathématiques Appliquées, Inria Saclay - Ile de France, CMAP - Centre de Mathématiques Appliquées - Ecole Polytechnique
Abstract : We consider a quadratic optimal control problem governed by a nonautonomous affine differential equation subject to nonnegativity control constraints. For a general class of interior penalty functions, we show how to compute the principal term of the pointwise expansion of the state and the adjoint state. Our main argument relies on the following fact: If the control of the initial problem satisfies strict complementarity conditions for its Hamiltonian except for a finite number of times, the estimates for the penalized optimal control problem can be derived from the estimations of a related stationary problem. Our results provide several types of efficiency measures of the penalization technique: error estimations of the control for $L^s$ norms ($s$ in $[1,+\infty]$), error estimations of the state and the adjoint state in Sobolev spaces $W^{1,s}$ ($s$ in $[1,+\infty)$) and also error estimates for the value function. For the $L^1$ norm and the logarithmic penalty, the optimal results are given. In this case we indeed establish that the penalized control and the value function errors are of order $O(\eps|\log\eps|)$.
Keywords :
Document type :
Journal articles

Cited literature [20 references]

https://hal.inria.fr/inria-00365540
Contributor : Francisco Silva Connect in order to contact the contributor
Submitted on : Tuesday, March 3, 2009 - 4:51:43 PM
Last modification on : Wednesday, October 20, 2021 - 12:23:57 AM
Long-term archiving on: : Tuesday, June 8, 2010 - 8:29:44 PM

### File

RR-6863.pdf
Files produced by the author(s)

### Identifiers

• HAL Id : inria-00365540, version 1

### Citation

Felipe Alvarez, Jérôme Bolte, J. Frederic Bonnans, Francisco Silva. Asymptotic expansions for interior penalty solutions of control constrained linear-quadratic problems. Mathematical Programming, Series A, Springer, 2012, 135 (1-2), pp.473-507. ⟨inria-00365540⟩

Record views