{ "id": "1307.8383", "version": "v3", "published": "2013-07-31T16:40:28.000Z", "updated": "2015-11-03T10:10:39.000Z", "title": "Confluence of singularities of non-linear differential equations via Borel--Laplace transformations", "authors": [ "Martin Klimes" ], "comment": "42 pages", "journal": "Journal of Dynamical and Control Systems, 2015", "doi": "10.1007/s10883-015-9290-7", "categories": [ "math.CA", "math.CV", "math.DS" ], "abstract": "Borel summable divergent series usually appear when studying solutions of analytic ODE near a multiple singular point. Their sum, uniquely defined in certain sectors of the complex plane, is obtained via the Borel--Laplace transformation. This article shows how to generalize the Borel--Laplace transformation in order to investigate bounded solutions of parameter dependent non-linear differential systems with two simple (regular) singular points unfolding a double (irregular) singularity. We construct parametric solutions on domains attached to both singularities, that converge locally uniformly to the sectoral Borel sums. Our approach provides a unified treatment for all values of the complex parameter.", "revisions": [ { "version": "v2", "updated": "2014-05-27T21:38:14.000Z", "title": "Confluence of singularities via Borel-Laplace transformations", "abstract": "This article shows how to generalize the Borel-Laplace transformation used in the summability theory of divergent series in order to investigate bounded solutions of parameter dependent nonlinear differential systems with two simple (regular) singular points unfolding a double (rank 1 irregular) singularity, that converge locally uniformly to the sectorial Borel sums. This method allows for a unified treatment in the spirit of resurgent analysis for all values of the parameter.", "comment": null, "journal": null, "doi": null }, { "version": "v3", "updated": "2015-11-03T10:10:39.000Z" } ], "analyses": { "keywords": [ "borel-laplace transformation", "singularity", "parameter dependent nonlinear differential systems", "confluence", "sectorial borel sums" ], "tags": [ "journal article" ], "publication": { "publisher": "Springer" }, "note": { "typesetting": "TeX", "pages": 42, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1307.8383K" } } }