{ "id": "1611.06346", "version": "v1", "published": "2016-11-19T11:46:56.000Z", "updated": "2016-11-19T11:46:56.000Z", "title": "Quasi-Poincaré compactifications and blow-up solutions of ordinary differential equations", "authors": [ "Kaname Matsue" ], "comment": "31 pages, 6 figures", "categories": [ "math.DS" ], "abstract": "We construct a generalized compactification of Euclidean spaces as well as dynamical systems on them for studying blow-up solutions of ordinary differential equations. The basic idea is based on the quasi-homogeneous desingularization (blowing-up) of singularities. We apply this desingularization to infinity so that divergent solutions including grow-up and blow-up solutions for differential equations whose asymptotic form is not necessarily homogeneous can be treated on compact spaces. As a prototype, we define the quasi-homogeneous version of Poincar\\'e compactifications and discuss fundamental properties which play important roles to study blow-up solutions of inhomogeneous vector fields. As a demonstration of applicability, we consider singular shock waves consisting of several pieces of blow-up solutions and bounded solutions near infinity. We see that the quasi-Poincar\\'e compactification well describes singular profiles of singular shocks observed in preceding studies.", "revisions": [ { "version": "v1", "updated": "2016-11-19T11:46:56.000Z" } ], "analyses": { "subjects": [ "34A26", "34C08", "35B44", "35L67", "58K55" ], "keywords": [ "ordinary differential equations", "play important roles", "study blow-up solutions", "singular shock waves", "desingularization" ], "note": { "typesetting": "TeX", "pages": 31, "language": "en", "license": "arXiv", "status": "editable" } } }