[Banach] Abstract of a paper by N. L. Randrianarivony

This is an announcement for the paper "Characterization of quasi-Banach spaces which coarsely embed into a Hilbert space" by N. L. Randrianarivony.

Abstract: A map f between two metric spaces (X,d_1) and (Y,d_2) is called a coarse embedding of X into Y if there exist two nondecreasing functions phi_1, phi_2:[0,\infty) --> [0,\infty) such that: phi_1(d_1(x,y)) \leq d_2(f(x),f(y)) \leq phi_2(d_1(x,y)) for all x, y in X, and phi_1(t) tends to \infty as t tends to \infty. We characterize those quasi-Banach spaces that have a coarse embedding into a Hilbert space.

Archive classification: Functional Analysis; Metric Geometry

Remarks: 3 pages

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Submitted from: nirina@math.tamu.edu

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