Scaling by 5 on a 1/4-Cantor Measure

Each Cantor measure (μ) with scaling factor 1/(2n) has at least one associated orthonormal basis of exponential functions (ONB) for L^2(μ). In the particular case where the scaling constant for the Cantor measure is 1/4 and two specific ONBs are selected for L^2(μ), there is a unitary operator U defined by mapping one ONB to the other. This paper focuses on the case in which one ONB (Γ) is the original Jorgensen-Pedersen ONB for the Cantor measure (μ) and the other ONB is is 5Γ. The main theorem of the paper states that the corresponding operator U is ergodic in the sense that only the constant functions are fixed by U.

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