{ "id": "1408.6146", "version": "v1", "published": "2014-08-26T15:13:21.000Z", "updated": "2014-08-26T15:13:21.000Z", "title": "Optimal boundary control of a viscous Cahn-Hilliard system with dynamic boundary condition and double obstacle potentials", "authors": [ "Pierluigi Colli", "M. Hassan Farshbaf-Shaker", "Gianni Gilardi", "Jürgen Sprekels" ], "comment": "Key words: optimal control; parabolic obstacle problems; MPECs; dynamic boundary conditions; optimality conditions. arXiv admin note: substantial text overlap with arXiv:1308.5617", "categories": [ "math.AP", "math.OC" ], "abstract": "In this paper, we investigate optimal boundary control problems for Cahn-Hilliard variational inequalities with a dynamic boundary condition involving double obstacle potentials and the Laplace-Beltrami operator. The cost functional is of standard tracking type, and box constraints for the controls are prescribed. We prove existence of optimal controls and derive first-order necessary conditions of optimality. The general strategy, which follows the lines of the recent approach by Colli, Farshbaf-Shaker, Sprekels (see Appl. Math. Optim., 2014) to the (simpler) Allen-Cahn case, is the following: we use the results that were recently established by Colli, Gilardi, Sprekels in the preprint arXiv:1407.3916 [math.AP] for the case of (differentiable) logarithmic potentials and perform a so-called \"deep quench limit\". Using compactness and monotonicity arguments, it is shown that this strategy leads to the desired first-order necessary optimality conditions for the case of (non-differentiable) double obstacle potentials.", "revisions": [ { "version": "v1", "updated": "2014-08-26T15:13:21.000Z" } ], "analyses": { "subjects": [ "74M15", "49K20", "35K61" ], "keywords": [ "double obstacle potentials", "dynamic boundary condition", "viscous cahn-hilliard system", "first-order necessary optimality conditions", "optimal boundary control problems" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1408.6146C" } } }