This is an announcement for the paper "Free spaces over some proper metric spaces" by Aude Dalet.
Abstract: We prove that the Lipschitz-free space over a countable proper metric space and over a proper ultrametric space is isometric to a dual space and has the metric approximation property.
Archive classification: math.FA
Mathematics Subject Classification: 46B10, 46B28
Submitted from: aude.dalet@univ-fcomte.fr
The paper may be downloaded from the archive by web browser from URL
http://front.math.ucdavis.edu/1404.3939
or