Optimal L 1-Control in Coefficients for Dirichlet Elliptic Problems: W-Optimal Solutions

Peter I. Kogut () and Guenter Leugering ()
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Peter I. Kogut: Dnipropetrovsk National University
Guenter Leugering: Lehrstuhl II Universität Erlangen-Nürnberg

Journal of Optimization Theory and Applications, 2011, vol. 150, issue 2, No 1, 205-232

Abstract: Abstract In this paper, we study a Dirichlet optimal control problem associated with a linear elliptic equation the coefficients of which we take as controls in the class of integrable functions. The coefficients may degenerate and, therefore, the problems may exhibit the so-called Lavrentieff phenomenon and non-uniqueness of weak solutions. We consider the solvability of this problem in the class of W-variational solutions. Using a concept of variational convergence of constrained minimization problems in variable spaces, we prove the existence of W-solutions to the optimal control problem and provide the way for their approximation. We emphasize that control problems of this type are important in material and topology optimization as well as in damage or life-cycle optimization.

Keywords: Degenerate elliptic equations; Control in coefficients; Weighted Sobolev spaces; Lavrentieff phenomeno; Variational convergence (search for similar items in EconPapers)
Date: 2011
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DOI: 10.1007/s10957-011-9840-4

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