{ "id": "1111.4616", "version": "v1", "published": "2011-11-20T07:51:53.000Z", "updated": "2011-11-20T07:51:53.000Z", "title": "Surfaces moving by powers of Gauss curvature", "authors": [ "Ben Andrews", "Xuzhong Chen" ], "categories": [ "math.DG", "math.AP" ], "abstract": "We prove that strictly convex surfaces moving by $K^{\\alpha/2}$ become spherical as they contract to points, provided $\\alpha$ lies in the range $[1,2]$. In the process we provide a natural candidate for a curvature pinching quantity for surfaces moving by arbitrary functions of curvature, by finding a quantity conserved by the reaction terms in the evolution of curvature.", "revisions": [ { "version": "v1", "updated": "2011-11-20T07:51:53.000Z" } ], "analyses": { "subjects": [ "53C44", "35K96", "58J35" ], "keywords": [ "gauss curvature", "reaction terms", "natural candidate", "curvature pinching quantity", "arbitrary functions" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1111.4616A" } } }