03341nam 22004575a 450 991015192970332120100929234500.03-03719-582-710.4171/082(CKB)3710000000953861(CH-001817-3)122-100929(PPN)178155837(EXLCZ)99371000000095386120100929j20100929 fy 0engurnn|mmmmamaatxtrdacontentcrdamediacrrdacarrierGeometrisation of 3-Manifolds[electronic resource] /Laurent Bessières, Gérard Besson, Michel Boileau, Sylvain Maillot, Joan PortiZuerich, Switzerland European Mathematical Society Publishing House20101 online resource (247 pages)EMS Tracts in Mathematics (ETM)13The Geometrisation Conjecture was proposed by William Thurston in the mid 1970s in order to classify compact 3-manifolds by means of a canonical decomposition along essential, embedded surfaces into pieces that possess geometric structures. It contains the famous Poincaré Conjecture as a special case. In 2002, Grigory Perelman announced a proof of the Geometrisation Conjecture based on Richard Hamilton's Ricci flow approach, and presented it in a series of three celebrated arXiv preprints. Since then there has been an ongoing effort to understand Perelman's work by giving more detailed and accessible presentations of his ideas or alternative arguments for various parts of the proof. This book is a contribution to this endeavour. Its two main innovations are first a simplified version of Perelman's Ricci flow with surgery, which is called Ricci flow with bubbling-off, and secondly a completely different and original approach to the last step of the proof. In addition, special effort has been made to simplify and streamline the overall structure of the argument, and make the various parts independent of one another. A complete proof of the Geometrisation Conjecture is given, modulo pre-Perelman results on Ricci flow, Perelman's results on the ℒ-functional and κ-solutions, as well as the Colding-Minicozzi extinction paper. The book can be read by anyone already familiar with these results, or willing to accept them as black boxes. The structure of the proof is presented in a lengthy introduction, which does not require knowledge of geometric analysis. The bulk of the proof is the existence theorem for Ricci flow with bubbling-off, which is treated in parts I and II. Part III deals with the long time behaviour of Ricci flow with bubbling-off. Part IV finishes the proof of the Geometrisation Conjecture.Differential & Riemannian geometrybicsscManifolds and cell complexesmscDifferential geometrymscDifferential & Riemannian geometryManifolds and cell complexesDifferential geometry57-xx53-xxmscBessières Laurent1070605Besson GérardBoileau MichelMaillot SylvainPorti Joanch0018173BOOK9910151929703321Geometrisation of 3-Manifolds2564452UNINA