{ "id": "1706.04796", "version": "v1", "published": "2017-06-15T09:53:48.000Z", "updated": "2017-06-15T09:53:48.000Z", "title": "On Luzin N-property and uncertainty principle for the Sobolev mappings", "authors": [ "Adele Ferone", "Mikhail V. Korobkov", "Alba Roviello" ], "categories": [ "math.AP" ], "abstract": "We study Luzin N-property with respect to the Hausdorff measures for Sobolev spaces W^k_p(R^n,R^d). We prove that such N-property holds except for one critical dimensional value t_*=n-(k-1)p; for this critical value the N-property fails in general, and we constructed the corresponding nontrivial counterexample (based on the theory of lacunary Fourier series). Nevertheless, this N-property holds if we assume in addition that the highest k-derivatives belongs to the Lorentz space L_{p,1} instead of L_p. We extend these results to the case of fractional Sobolev spaces as well. Also, we establish some Fubini type theorems for $N$-properties and discuss their applications to the Morse--Sard theorem and its recent extensions.", "revisions": [ { "version": "v1", "updated": "2017-06-15T09:53:48.000Z" } ], "analyses": { "keywords": [ "uncertainty principle", "sobolev mappings", "n-property holds", "study luzin n-property", "lacunary fourier series" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }