{ "id": "1204.4397", "version": "v1", "published": "2012-04-19T16:09:15.000Z", "updated": "2012-04-19T16:09:15.000Z", "title": "Smooth solutions for a ${p}$-system of mixed type", "authors": [ "Michael", "Bialy" ], "categories": [ "math.AP", "math-ph", "math.MP", "nlin.SI" ], "abstract": "In this note we analyze smooth solutions of a $p$-system of the \\textit{mixed} type. Motivating example for this is a 2-components reduction of the Benney moments chain which appears to be connected to theory of integrable systems. We don't assume a-priory that the solutions in question are in the Hyperbolic region. Our main result states that the only smooth solutions of the system which are periodic in $x$ are necessarily constants. As for initial value problem we prove that if the initial data is strictly hyperbolic and periodic in $x$ then the solution can not extend to $[t_0;+\\infty)$ and shocks are necessarily created.", "revisions": [ { "version": "v1", "updated": "2012-04-19T16:09:15.000Z" } ], "analyses": { "subjects": [ "35L65", "35L67", "70H06" ], "keywords": [ "mixed type", "initial value problem", "benney moments chain", "main result states", "dont assume a-priory" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1204.4397M" } } }