论文信息 - Nonreduction of Relations in the Gromov Space to Polish Actions

Nonreduction of Relations in the Gromov Space to Polish Actions

It is shown that, in the Gromov space of isometry classes of pointed proper metric spaces, the equivalence relations defined by existence of coarse quasi-isometries or being at finite Gromov-Hausdorff distance, cannot be reduced to the equivalence relation defined by any Polish action.

Jesús A. Álvarez López | Alberto Candel | A. Candel | J. Á. López

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