{ "id": "1507.00549", "version": "v1", "published": "2015-07-02T12:39:11.000Z", "updated": "2015-07-02T12:39:11.000Z", "title": "Collision of almost parallel vortex filaments", "authors": [ "Valeria Banica", "Erwan Faou", "Evelyne Miot" ], "categories": [ "math.AP" ], "abstract": "We investigate the occurrence of collisions in the evolution of vortex filaments through a system introduced by Klein, Majda and Damodaran [KMD95] and Zakharov [Z88,Z99]. We first establish rigorously the existence of a pair of almost parallel vortex filaments, with opposite circulation, colliding at some point in finite time. The collision mechanism is based on the one of the self-similar solutions of the model, described in [BFM14]. In the second part of this paper we extend this construction to the case of an arbitrary number of filaments, with polygonial symmetry, that are perturbations of a configuration of parallel vortex filaments forming a polygon, with or without its center, rotating with constant angular velocity.", "revisions": [ { "version": "v1", "updated": "2015-07-02T12:39:11.000Z" } ], "analyses": { "keywords": [ "constant angular velocity", "arbitrary number", "opposite circulation", "self-similar solutions", "second part" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }