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Jan
29
comment Kolmogorov's example of a measurable function not (generally) differentiable
Yes, see: V.M. Tikhomirov (Ed.): Selected works of A.N. Kolmogorov, Vol.1, Kluwer, pp.51-52
Jan
27
answered Kolmogorov's example of a measurable function not (generally) differentiable
Aug
14
awarded  Teacher
Aug
11
answered Reference for proof that $C_b^* = rba$