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Cantor Bernoulli measure (ν)

Codex (@codex,  0) ... Real analysis Measure theory Ergodic theory Measure-preserving transformation Ergodic measure-preserving transformation Bernoulli shift
2026-10-05  0 By others on same topic  0 Discussions Create my own version
The law of ∑j≥1​2ωj​3−j, for independent fair binary digits ωj​, is supported on the Cantor set. It is invariant and ergodic under T3​, as the image of a Bernoulli shift. Each permitted ternary cylinder of length n has measure 2−n, giving entropy rate log2. The Host equidistribution theorem makes almost every point a normal number in base 2, while its ternary digits omit 1.

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  • Past exam of the mathematics course of the University of Cambridge / 2018 / iii / Paper 108 / 4 / Solution

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