{ "id": "2001.03969", "version": "v1", "published": "2020-01-12T18:23:24.000Z", "updated": "2020-01-12T18:23:24.000Z", "title": "Stability of the standing waves of the concentrated NLSE in dimension two", "authors": [ "Riccardo Adami", "Raffaele Carlone", "Michele Correggi", "Lorenzo Tentarelli" ], "categories": [ "math.AP", "math-ph", "math.MP" ], "abstract": "In this paper we will continue the analysis of two dimensional Schr\\\"odinger equation with a fixed, pointwise, nonlinearity started in [2, 13]. In this model, the occurrence of a blow-up phenomenon has two peculiar features: the energy threshold under which all solutions blow up is strictly negative and coincides with the infimum of the energy of the standing waves; there is no critical power nonlinearity, i.e., for every power there exist blow-up solutions. Here we study the stability properties of stationary states to verify whether the anomalies mentioned before have any counterpart on the stability features.", "revisions": [ { "version": "v1", "updated": "2020-01-12T18:23:24.000Z" } ], "analyses": { "keywords": [ "standing waves", "concentrated nlse", "stationary states", "stability properties", "blow-up solutions" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }