On curve-flat Lipschitz functions and their linearizations
Résumé
We show that several operator ideals coincide when intersected with the class of linearizations of Lipschitz maps. In particular, we show that the linearization ˆf of a Lipschitz map f:M→N is Dunford-Pettis if and only if it is Radon-Nikod\'ym if and only if it does not fix any copy of L1. We also identify and study the corresponding metric property of f, which is a natural extension of the curve-flatness introduced in [arXiv:2103.09370]. Further, we show that ˆf is compact if and only if it does not fix any copy of ℓ1.
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