{ "id": "1011.2728", "version": "v3", "published": "2010-11-11T18:10:16.000Z", "updated": "2012-05-03T17:13:34.000Z", "title": "The energy of a smooth metric measure space and applications", "authors": [ "Jeffrey S. Case" ], "comment": "44 pages; rewritten to use the more standard language of smooth metric measure spaces, and corrected some errors in the appendix", "categories": [ "math.DG" ], "abstract": "We introduce and study the notion of the energy of a smooth metric measure space, which includes as special cases the Yamabe constant and Perelman's $\\nu$-entropy. We then investigate some properties the energy shares with these constants, in particular its relationship with the $\\kappa$-noncollapsing property. Finally, we use the energy to prove a precompactness theorem for the space of compact quasi-Einstein smooth metric measure spaces, in the spirit of similar results for Einstein metrics and gradient Ricci solitons.", "revisions": [ { "version": "v3", "updated": "2012-05-03T17:13:34.000Z" } ], "analyses": { "subjects": [ "53C21", "53C25" ], "keywords": [ "quasi-einstein smooth metric measure spaces", "compact quasi-einstein smooth metric measure", "applications", "gradient ricci solitons", "energy shares" ], "note": { "typesetting": "TeX", "pages": 44, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1011.2728C" } } }