{ "id": "1208.1020", "version": "v2", "published": "2012-08-05T15:15:18.000Z", "updated": "2016-06-06T08:25:46.000Z", "title": "$\\cF$-functional and geodesic stability", "authors": [ "Weiyong He" ], "comment": "Comments are welcome; published version by Asian J. of Math", "categories": [ "math.DG", "math.AG" ], "abstract": "We consider canonical metrics on Fano manifolds. First we introduce a norm-type functional on Fano manifolds, which has Kahler-Einstein or Kahler-Ricci soliton as its critical point and the Kahler-Ricci flow can be viewed as its (reduced) gradient flow. We then obtain a natural lower bound of this functional. As an application, we prove that Kahler-Ricci soliton, if exists, maximizes Perelman's $\\mu$-functional without extra assumptions. Second we consider a conjecture proposed by S.K. Donaldson in terms of $\\cK$-energy. Our simple observation is that $\\cF$-functional, as $\\cK$-energy, also integrates Futaki invariant. We then restate geodesic stability conjecture on Fano manifolds in terms of $\\cF$-functional. Similar pictures can also be extended to Kahler-Ricci soliton and modified $\\cF$-functional.", "revisions": [ { "version": "v1", "updated": "2012-08-05T15:15:18.000Z", "comment": "Comments are welcome", "journal": null, "doi": null }, { "version": "v2", "updated": "2016-06-06T08:25:46.000Z" } ], "analyses": { "keywords": [ "functional", "fano manifolds", "kahler-ricci soliton", "restate geodesic stability conjecture", "natural lower bound" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1208.1020H" } } }