Arzela–Ascoli conjecture with addresses for Gromov–Hausdorff converging spaces

Let (Xj,dXj)(X_j,d_{X_j}) and (Yj,dYj)(Y_j,d_{Y_j}) be sequences of compact metric spaces such that

XjGHXandYjGHY.X_j \stackrel{\textrm{GH}}{\longrightarrow} X_\infty \qquad\textrm{and}\qquad Y_j \stackrel{\textrm{GH}}{\longrightarrow} Y_\infty.

Suppose that Fj:XjYjF_j:X_j\to Y_j are uniformly bounded KK-Lipschitz functions for some K>0K>0. Arzela–Ascoli conjecture with addresses. A subsequence converges to a bounded KK-Lipschitz function

F:XY.F_\infty:X_\infty\to Y_\infty.

This is proposed as a stronger version of the preceding Arzela–Ascoli theorem with addresses, extending the conclusion from real-valued functions on varying spaces to functions whose domains and targets both vary in the Gromov–Hausdorff sense. The source does not provide a resolution of this stronger statement.

Sources & referencesView supporting material

Primary source

Mauricio Che, Raquel Perales and Christina Sormani, “Gromov's Compactness Theorem for the Intrinsic Timed-Hausdorff Distance”, arXiv:2510.13069 (2026).

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