{ "id": "1706.01549", "version": "v1", "published": "2017-06-05T21:57:56.000Z", "updated": "2017-06-05T21:57:56.000Z", "title": "On the Endpoint Regularity in Onsager's Conjecture", "authors": [ "Philip Isett" ], "categories": [ "math.AP" ], "abstract": "Onsager's conjecture states that the conservation of energy may fail for $3D$ incompressible Euler flows with H\\\"older regularity below $1/3$. This conjecture was recently solved by the author, yet the endpoint case remains an interesting open question. In this work, we construct energy non-conserving solutions to the $3D$ incompressible Euler equations with space-time H\\\"older regularity converging to the critical exponent at small spatial scales and containing the entire range of exponents $[0,1/3)$. This result improves the author's previous result towards the endpoint case. To obtain this improvement, we introduce a new method for optimizing the regularity that can be achieved by a general convex integration scheme. A crucial point is to avoid power-losses in frequency in the estimates of the iteration. This goal is achieved using localization techniques of [Isett-Oh, 2014] to modify the convex integration scheme.", "revisions": [ { "version": "v1", "updated": "2017-06-05T21:57:56.000Z" } ], "analyses": { "keywords": [ "endpoint regularity", "general convex integration scheme", "small spatial scales", "endpoint case remains", "onsagers conjecture states" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }