Abstract We show that in the case in which X and Y are uniformly concave complete pointed metric spaces, every 2-local isometry Δ from Lip 0 ( X ) to… Click to show full abstract
Abstract We show that in the case in which X and Y are uniformly concave complete pointed metric spaces, every 2-local isometry Δ from Lip 0 ( X ) to Lip 0 ( Y ) admits a representation as the sum of a weighted composition operator and a homogeneous Lipschitz functional on, at least, a subspace Y 0 of Y which is isometric to Y. Moreover, Δ is both linear and surjective when X is also separable.
               
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