{ "id": "2312.13606", "version": "v1", "published": "2023-12-21T06:49:49.000Z", "updated": "2023-12-21T06:49:49.000Z", "title": "Scattering for 2d semi-relativistic Hartree equations with short range potential", "authors": [ "Changhun Yang" ], "comment": "16pages", "categories": [ "math.AP" ], "abstract": "We study the long time behavior of small solutions to the semi-relativistic Hartree equations in two dimension. The nonlinear term is convolved with the singular potential $|x|^{-\\gamma}$ for $1<\\gamma<2$, which is referred to as short-range interaction potential in the sense of scattering phenomenon. We establish the scattering results for small solutions in a weighted space, in other words, we prove that the nonlinear solutions exist globally and behave asymptotically like a linear solution whenever the initial data is sufficiently small. To achieve this, we should obtain time decay estimates for the nonlinear term which is integrable. A key observation is that the loss in time in the course of weighted energy estimates can be recovered by the space resonance method with the help of null structure.", "revisions": [ { "version": "v1", "updated": "2023-12-21T06:49:49.000Z" } ], "analyses": { "subjects": [ "35P25", "35R11", "35Q40", "35B40" ], "keywords": [ "2d semi-relativistic hartree equations", "short range potential", "scattering", "small solutions", "nonlinear term" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable" } } }