{ "id": "2009.03043", "version": "v1", "published": "2020-09-04T05:25:55.000Z", "updated": "2020-09-04T05:25:55.000Z", "title": "The global well-posedness of the compressible fluid model of Korteweg type for the critical case", "authors": [ "Takayuki Kobayashi", "Miho Murata" ], "comment": "13 pages. arXiv admin note: substantial text overlap with arXiv:1908.07224", "categories": [ "math.AP" ], "abstract": "In this paper, we consider the compressible fluid model of Korteweg type in a critical case where the derivative of pressure equals to $0$ at the given constant state. It is shown that the system admits a unique, global strong solution for small initial data in the maximal $L_p$-$L_q$ regularity class. As a result, we also prove the decay estimates of the solutions to the nonliner problem. In order to obtain the global well-posedness for the critical case, we show $L_p$-$L_q$ decay properties of solutions to the linearized equations under an additional assumption for a low frequencies.", "revisions": [ { "version": "v1", "updated": "2020-09-04T05:25:55.000Z" } ], "analyses": { "subjects": [ "35Q30", "76N10" ], "keywords": [ "compressible fluid model", "critical case", "korteweg type", "global well-posedness", "global strong solution" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable" } } }