Bianchi-convex sets and a new maximum principle for the Ricci flow
arXiv:1902.09088
Abstract
We introduce the new notion of Bianchi-convex sets, a generalization of convex sets of algebraic curvature tensors inspired by the second Bianchi identity. It turns out that Hamilton's maximum principle for the Ricci flow can be generalized for Bianchi-convex sets.
20 pages, 1 figure