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Optimal control for a class of mixed variational problems

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Abstract

The present paper concerns a class of abstract mixed variational problems governed by a strongly monotone Lipschitz continuous operator. With the existence and uniqueness results in the literature for the problem under consideration, we prove a general convergence result, which shows the continuous dependence of the solution with respect to the data by using arguments of monotonicity, compactness, lower semicontinuity and Mosco convergence. Then we consider an associated optimal control problem for which we prove the existence of optimal pairs. The mathematical tools developed in this paper are useful in the analysis and control of a large class of boundary value problems which, in a weak formulation, lead to mixed variational problems. To provide an example, we illustrate our results in the study of a mathematical model which describes the equilibrium of an elastic body in frictional contact with a foundation.

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Acknowledgements

The research work was supported by the National Natural Science Foundation of China (11771067), the Applied Basic Project of Sichuan Province (2019YJ0204) and the Horizon 2020 Research and Innovation Framework Programme of the European Community under Grant Agreement CONMECH (823731).

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Authors and Affiliations

  1. School of Mathematical Sciences, University of Electronic Science and Technology of China, 611731, Chengdu, Sichuan, People’s Republic of China

    Mircea Sofonea & Yi-bin Xiao

  2. Laboratoire de Mathématiques et Physique, University of Perpignan Via Domitia, 52 Avenue Paul Alduy, 66860, Perpignan, France

    Mircea Sofonea

  3. Department of Mathematics, University of Craiova, A.I. Cuza 13, 200585, Craiova, Romania

    Andaluzia Matei

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  1. Mircea Sofonea
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  2. Andaluzia Matei
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  3. Yi-bin Xiao
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Correspondence to Yi-bin Xiao.

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Sofonea, M., Matei, A. & Xiao, Yb. Optimal control for a class of mixed variational problems. Z. Angew. Math. Phys. 70, 127 (2019). https://doi.org/10.1007/s00033-019-1173-4

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