{ "id": "0711.1236", "version": "v1", "published": "2007-11-08T10:39:14.000Z", "updated": "2007-11-08T10:39:14.000Z", "title": "Maximum principle and convergence of fundamental solutions for the Ricci flow", "authors": [ "Shu-Yu Hsu" ], "comment": "15 pages", "categories": [ "math.DG" ], "abstract": "In this paper we will prove a maximum principle for the solutions of linear parabolic equation on complete non-compact manifolds with a time varying metric. We will prove the convergence of the Neumann Green function of the conjugate heat equation for the Ricci flow in $B_k\\times (0,T)$ to the minimal fundamental solution of the conjugate heat equation as $k\\to\\infty$. We will prove the uniqueness of the fundamental solution under some exponential decay assumption on the fundamental solution. We will also give a detail proof of the convergence of the fundamental solutions of the conjugate heat equation for a sequence of pointed Ricci flow $(M_k\\times (-\\alpha,0],x_k,g_k)$ to the fundamental solution of the limit manifold as $k\\to\\infty$ which was used without proof by Perelman in his proof of the pseudolocality theorem for Ricci flow.", "revisions": [ { "version": "v1", "updated": "2007-11-08T10:39:14.000Z" } ], "analyses": { "subjects": [ "58J35", "53C43" ], "keywords": [ "ricci flow", "maximum principle", "conjugate heat equation", "convergence", "neumann green function" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007arXiv0711.1236H" } } }