Title
ERROR ESTIMATES FOR A POINTWISE TRACKING OPTIMAL CONTROL PROBLEM OF A SEMILINEAR ELLIPTIC EQUATION
Abstract
We consider a pointwise tracking optimal control problem for a semilinear elliptic partial differential equation. We derive the existence of optimal solutions and analyze first and, necessary and sufficient, second order optimality conditions. We devise two strategies of discretization to approximate a solution of the optimal control problem: a semidiscrete scheme where the control variable is not discretized---the so-called variational discretization approach---and a fully discrete scheme where the control variable is discretized with piecewise constant functions. For both solution techniques, we analyze convergence properties of discretizations and derive error estimates.
Year
DOI
Venue
2022
10.1137/20M1364151
SIAM JOURNAL ON CONTROL AND OPTIMIZATION
Keywords
DocType
Volume
optimal control, semilinear equations, Dirac measures, first order optimality conditions, second order optimality conditions, finite element approximations, error estimates, maximumnorm estimates
Journal
60
Issue
ISSN
Citations 
3
0363-0129
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Alejandro Allendes143.92
Francisco Fuica201.01
Enrique Otárola38613.91