Titlebook: Geometric Aspects of Functional Analysis; Israel Seminar (GAFA J. Lindenstrauss,V. Milman Conference proceedings 1995 Birkh?user Verlag 199

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Two Unexpected Examples Concerning Differentiability of Lipschitz Functions on Banach Spaces,rentiability of Lipschitz functions between Banach spaces. Recall that these concepts are: Gateaux derivative of a mapping φ: . → . at . ∈ ., which is defined as a continuous linear map φ′ (.): . → . verifying. for every . ∈ ., and Fréchet derivative which, in addition, requests that the above limit