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Let (M3,g) be a 3 dimensional simply connected compact riemannian variety and Σ2↪M3 an immerged surface in M3. I describe an evolution of Σ2:
˙x(t)=NΣ2(t)(x(t))
where NΣ2 is the normal vector of Σ2 in M3. Does the surface converge towards points?
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