{ "id": "1809.09787", "version": "v1", "published": "2018-09-26T02:50:51.000Z", "updated": "2018-09-26T02:50:51.000Z", "title": "Global Attractor For Weakly Damped, Forced Mkdv Equation Below Energy Space", "authors": [ "Prashant Goyal" ], "comment": "34 pages. Submitted on December 15, 2017", "categories": [ "math.AP" ], "abstract": "We prove the existence of the global attractor in $ \\dot H^s$, $s > 11/12$ for the weakly damped and forced mKdV on the one dimensional torus. The existence of global attractor below the energy space has not been known, though the global well-posedness below the energy space is established. We directly apply the I-method to the damped and forced mKdV, because the Miura transformation does not work for the mKdV with damping and forcing terms. We need to make a close investigation into the trilinear estimates involving resonant frequencies, which are different from the bilinear estimates corresponding to the KdV.", "revisions": [ { "version": "v1", "updated": "2018-09-26T02:50:51.000Z" } ], "analyses": { "keywords": [ "global attractor", "energy space", "forced mkdv equation", "dimensional torus", "global well-posedness" ], "note": { "typesetting": "TeX", "pages": 34, "language": "en", "license": "arXiv", "status": "editable" } } }