{ "id": "1708.02464", "version": "v1", "published": "2017-08-08T12:36:41.000Z", "updated": "2017-08-08T12:36:41.000Z", "title": "Optimal control of a Vlasov-Poisson plasma by an external magnetic field - The basics for variational calculus", "authors": [ "Patrik Knopf" ], "categories": [ "math.AP", "math.OC" ], "abstract": "We consider the three dimensional Vlasov-Poisson system that is equipped with an external magnetic field to describe a plasma. The aim of various concrete applications is to control a plasma in a desired fashion. This can be modeled by an optimal control problem. For that reason the basics for calculus of variations will be introduced in this paper. We have to find a suitable class of fields that are admissible for this procedure as they provide unique global solutions of the Vlasov-Poisson system. Then we can define a field-state operator that maps any admissible field onto its corresponding distribution function. We will show that this field-state operator is Lipschitz continuous and (weakly) compact. Last we will consider a model problem with a tracking type cost functional and we will show that this optimal control problem has at least one globally optimal solution.", "revisions": [ { "version": "v1", "updated": "2017-08-08T12:36:41.000Z" } ], "analyses": { "subjects": [ "49J20", "35Q83" ], "keywords": [ "external magnetic field", "vlasov-poisson plasma", "variational calculus", "optimal control problem", "field-state operator" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }