Various classes of analytic, quasi-analytic and other infinitely differentiable functions of a real variable are studied. The paper gives a self-contained treatment by means of an elementary real ...
The generalized Cantor function Ѳϒ has a derivative equal to 1/(1 — γ) at almost every point in the set Cγ. This was established by Darst [1] who then posed the problem of characterizing those points ...