In differential geometry, the Ricci flow is an intrinsic geometric flow (a process which deforms the metric of a Riemannian manifold) in this case in a manner formally analogous to the diffusion of heat, thereby smoothing out irregularities in the metric.
The Ricci flow is an intrinsic geometric flow (a process) in this case in a manner formally analogous to the diffusion of heat, thereby smoothing out irregularities in the metric. This is in differential geometry. This process deforms the metric of a Riemannian manifold.