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Realizations of Gromov-Hausdorff Distanceстатья
- Авторы: Alexandr Ivanov, Stavros Iliadis, Alexey Tuzhilin
- Журнал: ArXiv e-prints
- Номер: 1603.08850
- Год издания: 2016
- Аннотация: It is shown that for any two compact metric spaces there exists an "optimal" correspondence which the Gromov-Hausdorff distance is attained at. Each such correspondence generates isometric embeddings of these spaces into a compact metric space such that the Gromov-Hausdorff distance between the initial spaces is equal to the Hausdorff distance between their images. Also, the optimal correspondences could be used for constructing the shortest curves in the Gromov-Hausdorff space in exactly the same way as it was done by Alexander Ivanov, Nadezhda Nikolaeva, and Alexey Tuzhilin in arXiv:1504.03830, where it is proved that the Gromov-Hausdorff space is geodesic. Notice that all proofs in the present paper are elementary and use no more than the idea of compactness.
- Добавил в систему: Тужилин Алексей Августинович