{ "id": "2312.08974", "version": "v1", "published": "2023-12-14T14:26:23.000Z", "updated": "2023-12-14T14:26:23.000Z", "title": "Multifractal analysis via Lagrange duality", "authors": [ "Alex Rutar" ], "comment": "31 pages, 3 figures. This is an expository article. Comments, especially concerning presentation, are very welcome!", "categories": [ "math.DS" ], "abstract": "We provide a self-contained exposition of the well-known multifractal formalism for self-similar measures satisfying the strong separation condition. At the heart of our method lies a pair of quasiconvex optimization problems which encode the parametric geometry of the Lagrange dual associated with the constrained variational principle. We also give a direct derivation of the Hausdorff dimension of the level sets of the upper and lower local dimensions by exploiting certain weak uniformity properties of the space of Bernoulli measures.", "revisions": [ { "version": "v1", "updated": "2023-12-14T14:26:23.000Z" } ], "analyses": { "subjects": [ "28A80", "49N15", "94A17", "60F10" ], "keywords": [ "multifractal analysis", "lagrange duality", "well-known multifractal formalism", "lower local dimensions", "strong separation condition" ], "tags": [ "expository article" ], "note": { "typesetting": "TeX", "pages": 31, "language": "en", "license": "arXiv", "status": "editable" } } }