{ "id": "2207.14402", "version": "v1", "published": "2022-07-28T22:50:51.000Z", "updated": "2022-07-28T22:50:51.000Z", "title": "Non-uniform bounds and Edgeworth expansions in self-normalized limit theorems", "authors": [ "Pascal Beckedorf", "Angelika Rohde" ], "categories": [ "math.PR" ], "abstract": "We study Edgeworth expansions in limit theorems for self-normalized sums. Non-uniform bounds for expansions in the central limit theorem are established while only imposing minimal moment conditions. Within this result, we address the case of non-integer moments leading to a reduced remainder. Furthermore, we provide non-uniform bounds for expansions in local limit theorems. The enhanced tail-accuracy of our non-uniform bounds allows for deriving an Edgeworth-type expansion in the entropic central limit theorem as well as a central limit theorem in total variation distance for self-normalized sums.", "revisions": [ { "version": "v1", "updated": "2022-07-28T22:50:51.000Z" } ], "analyses": { "subjects": [ "60F05", "62E20" ], "keywords": [ "non-uniform bounds", "self-normalized limit theorems", "entropic central limit theorem", "self-normalized sums", "imposing minimal moment conditions" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }