{ "id": "1810.07993", "version": "v1", "published": "2018-10-18T11:28:36.000Z", "updated": "2018-10-18T11:28:36.000Z", "title": "Blow-up phenomenon, ill-posedness and peakon solutions for the periodic Euler-Poincaré equations", "authors": [ "Wei Luo", "Zhaoyang Yin" ], "categories": [ "math.AP" ], "abstract": "In this paper we mainly investigate the initial value problem of the periodic Euler-Poincar\\'e equations. We first present a new blow-up result to the system for a special class of smooth initial data by using the rotational invariant properties of the system. Then, we prove that the periodic Euler-Poincar\\'e equations is ill-posed in critical Besov spaces by a contradiction argument. Finally, we verify the system possesses a class of peakon solutions in the sense of distributions.", "revisions": [ { "version": "v1", "updated": "2018-10-18T11:28:36.000Z" } ], "analyses": { "keywords": [ "peakon solutions", "blow-up phenomenon", "periodic euler-poincare equations", "ill-posedness", "rotational invariant properties" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }