Uniqueness of solutions of Ricci flow on complete noncompact manifolds
arXiv:0704.3468
Abstract
We prove the uniqueness of solutions of the Ricci flow on complete noncompact manifolds with bounded curvatures using the De Turck approach. As a consequence we obtain a correct proof of the existence of solution of the Ricci harmonic flow on complete noncompact manifolds with bounded curvatures.
A simple example of a manifold with bounded curvature and injectivity radius going to zero as the point tends to infinity is given. A proof and argument why the crucial lemma Lemma 2.2 of the Chen-Zhu's paper \cite{CZ} cannot hold is given