A new model of the ergodic transformations
Local algebras and a new version of Young's orthogonal form
Réarrangements convexes des marches aléatoires
Sur l'évolution des mesures déterminées par les équations de Navier-Stokes et la résolution du problème de Cauchy pour l'équation statistique de E. Hopf
Linearly rigid metric spaces and the embedding problem
We consider the problem of isometric embedding of metric spaces into Banach spaces, and introduce and study the remarkable class of so-called linearly rigid metric spaces: these are the spaces that admit a unique, up to isometry, linearly dense isometric embedding into a Banach space. The first nontrivial example of such a space was given by R. Holmes; he proved that the universal Urysohn space has this property. We give a criterion of linear rigidity of a metric space, which allows us to give a...
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