Convergence of discrete AA-flow to smooth Ricci flow

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Fix a smooth Riemannian surface (M,g)(M,g). Let (Mn,Tn,Φn,rn)(M_n,\mathcal{T}_n,\Phi_n,r_n) be a sequence of weighted triangulations of MM with initial circle packing metrics rnr_n, and let rn(t)r_n(t) be the solution obtained by evolving the AA-flow from rnr_n. Let g(t)g(t) be the solution of the smooth Ricci flow starting from (M,g)(M,g). Assume that the initial Gromov–Hausdorff distance between (M,g)(M,g) and (Mn,Tn,Φn,rn)(M_n,\mathcal{T}_n,\Phi_n,r_n) tends to zero. The convergence conjecture. Then, as n+n\to+\infty, the discrete solutions rn(t)r_n(t) converge to the smooth Ricci flow g(t)g(t) for t[0,+)t\in[0,+\infty). The claim proposes that the discrete AA-flow approximates smooth Ricci flow under Gromov–Hausdorff convergence of the initial weighted triangulated surfaces; the supplied source does not indicate whether this has been proved or disproved.

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Primary source

Huabin Ge and Xu Xu, “α-curvatures and α-flows on low dimensional triangulated manifolds”, arXiv:1505.05077 (2015).

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