%0 Journal Article %A Azagra Rueda, Daniel %A Gómez Gil, Javier %A Fry, Robb %A Lovo, Mauricio %A Jaramillo Aguado, Jesús Ángel %T C1-fine approximation of functions on Banach spaces with unconditional basis %D 2005 %@ 0033-5606 %U https://hdl.handle.net/20.500.14352/49596 %X We show that if X is a Banach space having an unconditional basis and a Cp-smooth Lipschitz bump function, then for every C1-smooth function f from X into a Banach space Y, and for every continuous function ε : X → (0, ∞), there exists a Cp-smooth function g : X → Y such that ‖f − g‖ ≤ ε and ‖f′ − g′‖ ≤ ε. %~