It is the primary tool used in grigori perelmans solution of the poincare conjecture, as well as in the proof of the differentiable sphere theorem by simon brendle and richard schoen. In this paper, we give a complete proof of the poincar. The ricci ow exhibits many similarities with the heat equation. When the manifold is compact, perelman did talk about the results of bounding the scalar curvature and diameter for kahlerricci flow on compact manifolds with. The ricci flow, named after gregorio ricci curbastro, was first introduced by richard s.
Pdf equivalence of simplicial ricci flow and hamiltons. An introduction to hamiltons ricci flow olga iacovlenco department of mathematics and statistics, mcgill university, montreal, quebec, canada abstract in this project we study the ricci ow equation introduced by richard hamilton in 1982. The ricci flow equation, introduced by richard hamilton h 1, is the evolution equation d dt gijt. Equivalence of simplicial ricci flow and hamilton s ricci flow for 3d neckpinch geometries. In differential geometry, the ricci flow is an intrinsic geometric flow. The ricci flow is a pde for evolving the metric tensor in a riemannian manifold to make it rounder, in the hope that one may draw topological conclusions from. Ricci flow is a means of processing the metric g by allowing it to evolve under. Given a complete riemannian manifold mn,gij, hamiltons ricci flow. A complete proof of the poincare and geometrization conjectures application of the hamiltonperelman theory of the ricci flow pdf. Since the ricci flow is a nonlinear heat equation for the riemannian metric, the intuition is that it should smooth out the metric and thereby give rise, in the long. Professor hyam rubinstein honours thesis, november 2006.
Readership graduate students and research mathematicians interested in geometric analysis, the poincare conjecture, thurstons geometrization conjecture, and. This work depends on the accumulative works of many geometric analysts in the past thirty years. Abstract the aim of this project is to introduce the basics of hamilton s ricci flow. Ricci flows of ricci flat cones research collection eth zurich. Pdf recent developments on the hamiltons ricci flow. The ricci ow is a pde for evolving the metric tensor in a riemannian manifold to make it \rounder, in. For a general introduction to the subject of the ricci. Hamilton in 1981 and is also referred to as the ricci hamilton flow. Dimensional reduction and the longtime behavior of ricci flow. States, i have connected with many important figures in the topic of ricci flow and differential. Indeed, hamilton believed that ricci flow could be used to establish the poincare conjecture and more general. The entropy formula for the ricci flow and its geometric applications. Hamilton himself and many other researchers like cao 16, yau 31, chow and others 5, perelman 14, 15, morgan and tian 19 developed the theory of ricci flow. A major direction in ricci flow, via hamilton s and perelmans works, is the use of ricci flow as an approach to solving the poincare conjecture and thurstons geometrization conjecture.
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