This is an announcement for the paper “Lipschitz free spaces on finite metric spaces” by Stephen J. Dilworthhttps://arxiv.org/search/math?searchtype=author&query=Dilworth%2C+S+J, Denka Kutzarovahttps://arxiv.org/search/math?searchtype=author&query=Kutzarova%2C+D, Mikhail I. Ostrovskiihttps://arxiv.org/search/math?searchtype=author&query=Ostrovskii%2C+M+I.
Abstract: Main results of the paper: (1) For any finite metric space $M$ the Lipschitz free space on $M$ contains a large well-complemented subspace which is close to $\ell_1^n$. (2) Lipschitz free spaces on large classes of recursively defined sequences of graphs are not uniformly isomorphic to $\ell_1^n$ of the corresponding dimensions. These classes contain well-known families of diamond graphs and Laakso graphs. Interesting features of our approach are: (a) We consider averages over groups of cycle-preserving bijections of graphs which are not necessarily graph automorphisms; (b) In the case of such recursive families of graphs as Laakso graphs we use the well-known approach of Gr"unbaum (1960) and Rudin (1962) for estimating projection constants in the case where invariant projections are not unique.
The paper may be downloaded from the archive by web browser from URL https://arxiv.org/abs/1807.03814