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Isometries on extremely non-complex Banach spaces
Abstract Given a separable Banach space E , we construct an extremely non-complex Banach space (i.e. a space satisfying that ‖ Id + T 2 ‖ = 1 + ‖ T 2 ‖ for every bounded linear operator T on it) whose dual contains E * as an L -summand. …