{ "id": "2003.14267", "version": "v1", "published": "2020-03-31T14:52:20.000Z", "updated": "2020-03-31T14:52:20.000Z", "title": "Sharp Interface Limit of a Stokes/Cahn-Hilliard System, Part II: Approximate Solutions", "authors": [ "Helmut Abels", "Andreas Marquardt" ], "comment": "59 pages", "categories": [ "math.AP" ], "abstract": "We construct rigorously suitable approximate solutions to the Stokes/Cahn-Hilliard system by using the method of matched asymptotics expansions. This is a main step in the proof of convergence given in the first part of this contribution, where the rigorous sharp interface limit of a coupled Stokes/Cahn-Hilliard system in a two dimensional, bounded and smooth domain is shown. As a novelty compared to earlier works, we introduce fractional order terms, which are of significant importance, but share the problematic feature that they may not be uniformly estimated in $\\epsilon$ in arbitrarily strong norms. As a consequence, gaining necessary estimates for the error, which occurs when considering the approximations in the Stokes/Cahn-Hilliard system, is rather involved.", "revisions": [ { "version": "v1", "updated": "2020-03-31T14:52:20.000Z" } ], "analyses": { "subjects": [ "76T99", "35Q30", "35Q35", "35R35", "76D05", "76D45" ], "keywords": [ "stokes/cahn-hilliard system", "fractional order terms", "rigorous sharp interface limit", "construct rigorously suitable approximate solutions", "earlier works" ], "note": { "typesetting": "TeX", "pages": 59, "language": "en", "license": "arXiv", "status": "editable" } } }