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math.DG2007★ 1 cited
Three-manifolds of positive Ricci curvature and convex weakly umbilic boundary
Jean Cortissoz
In this paper we consider three-manifolds with weakly umbilic boundary (the Second Fundamental form of the boundary is a constant multiple of the metric). We show that if the initi…
math.DG2005
On the Ricci flow on the rotationally symmetric two-ball
Jean Cortissoz
In this paper we study a boundary value problem for the Ricci flow in the two dimensional ball endowed with a rotationally symmetric metric. We show short and long time existence r…