{ "id": "1606.01332", "version": "v1", "published": "2016-06-04T06:08:56.000Z", "updated": "2016-06-04T06:08:56.000Z", "title": "Measure-valued evolution equations with solution-dependent velocities on bounded domains: Mild solutions are weak solutions", "authors": [ "Joep H. M. Evers" ], "comment": "arXiv admin note: text overlap with arXiv:1507.05730", "categories": [ "math.AP" ], "abstract": "In [J. Differential Equations, 259 (2015), pp. 1068-1097], we proved the well-posedness of a measure-valued evolution equation posed on the bounded domain $[0,1]$. This result was obtained in the framework of (measure-valued) mild solutions; that is, solutions to the variation of constants formula. We were restricted there to a prescribed velocity field $v:[0,1]\\to\\mathbb{R}$ that is only a function of the spatial variable. We generalized this result in [SIAM J. Math. Anal., 48 (2016), pp. 1929-1953] to velocity fields that depend on the solution itself: $v=v[\\mu](x)$. To that aim, we first constructed so-called Euler approximations. These are approximate solutions, per time interval $(t_j,t_{j+1}]$ driven by an appropriate $v_j=v_j(x)$. In [SIAM J. Math. Anal., 48 (2016), pp. 1929-1953], mild solutions were defined as the limit of a sequence of Euler approximations as the mesh size went to zero. Such mild solutions were showed to exist and be unique. In the current paper we define weak solutions (for $v=v(x)$ and $v=v[\\mu]$, respectively) and show that, in either case, the aforementioned mild solutions are weak solutions.", "revisions": [ { "version": "v1", "updated": "2016-06-04T06:08:56.000Z" } ], "analyses": { "subjects": [ "28A33", "34A12", "45D05", "35F16" ], "keywords": [ "mild solutions", "measure-valued evolution equation", "bounded domain", "solution-dependent velocities", "euler approximations" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }