### Abstract

Fréchet's classical isometric embedding argument has evolved to become a major tool in the study of metric spaces. An important example of a Fréchet embedding is Bourgain's embedding [4]. The authors have recently shown [2] that for every ε > 0, any n-point metric space contains a subset of size at least n^{1-ε} which embeds into ℓ_{2} with distortion O(log(2/ε)/ε). The embedding used in [2] is non-Fréchet, and the purpose of this note is to show that this is not coincidental. Specifically, for every ε > 0, we construct arbitrarily large n-point metric spaces, such that the distortion of any Fréchet embedding into ℓ_{p} on subsets of size at least n ^{1/2+ε} is Ω((log n)^{1/P}).

Original language | English (US) |
---|---|

Pages (from-to) | 111-124 |

Number of pages | 14 |

Journal | Israel Journal of Mathematics |

Volume | 151 |

DOIs | |

State | Published - May 15 2006 |

Externally published | Yes |

### All Science Journal Classification (ASJC) codes

- Mathematics(all)

## Fingerprint Dive into the research topics of 'Limitations to fréchet's metric embedding method'. Together they form a unique fingerprint.

## Cite this

*Israel Journal of Mathematics*,

*151*, 111-124. https://doi.org/10.1007/BF02777357