{ "id": "1912.01836", "version": "v1", "published": "2019-12-04T07:49:55.000Z", "updated": "2019-12-04T07:49:55.000Z", "title": "Fourier transforms, fractional derivatives, and a little bit of quantum mechanics", "authors": [ "FAbio Bagarello" ], "comment": "Accepted for publication in Rocky Mountain Journal of Mathematics", "categories": [ "math-ph", "math.MP" ], "abstract": "We discuss some of the mathematical properties of the fractional derivative defined by means of Fourier transforms. We first consider its action on the set of test functions $\\Sc(\\mathbb R)$, and then we extend it to its dual set, $\\Sc'(\\mathbb R)$, the set of tempered distributions, provided they satisfy some mild conditions. We discuss some examples, and we show how our definition can be used in a quantum mechanical context.", "revisions": [ { "version": "v1", "updated": "2019-12-04T07:49:55.000Z" } ], "analyses": { "keywords": [ "fourier transforms", "fractional derivative", "little bit", "quantum mechanics", "test functions" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }