{ "id": "1604.04778", "version": "v1", "published": "2016-04-16T17:49:25.000Z", "updated": "2016-04-16T17:49:25.000Z", "title": "Free-Surface Hydrodynamics in Conformal Variables: Are Equations of Free-Surface Hydrodynamics on Deep Water Integrable?", "authors": [ "Vladimir Zakharov" ], "comment": "8 pages, 7 references. The content of this article was reported on VIIIth International Lavrentyev Readings, September 6-11, 2015, Novosibirsk, Russia", "categories": [ "math-ph", "math.MP" ], "abstract": "The hypothesis on complete integrability of equations describing the potential motion of incompressible ideal fluid with free surface in 2-D space in presence and absence of gravity was formulated by Dyachenko and Zakharov in 1994 [1]. Later on, the same authors found that these equations have indefinite number of additional motion constants [2] that was an argument in support of the integrability hypothesis. In this article we formulate another argument in favor of this conjecture. It is known [3] that the free-surface equations have an exotic solution that keeps the surface flat but describes the compression of the whole mass of fluid. In this article we show that the free-surface hydrodynamic is integrable if the motion can be treated as a finite amplitude perturbation of the compressed fluid solution. Integrability makes possible to construct an indefinite number of exact solutions of the Euler equations with free surface.", "revisions": [ { "version": "v1", "updated": "2016-04-16T17:49:25.000Z" } ], "analyses": { "keywords": [ "free-surface hydrodynamic", "deep water integrable", "conformal variables", "free surface", "indefinite number" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160404778Z" } } }