Polynomial Fourier decay for nonlinear self-conformal measures on analytic curves

Let u u be a self-conformal measure on C\mathbb{C} that is not conjugate to a linear system and is supported on an analytic curve that is not a line. Polynomial Fourier decay conjecture. The measure u u has polynomial Fourier decay. This extends the known result for curve-reducible self-conformal measures conjugate to linear systems; the corresponding claim for measures not conjugate to linear remains open and may require quantitative versions of existing arguments.

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Primary source

Amlan Banaji and Han Yu, “Fourier transform of nonlinear images of self-similar measures: qualitative aspects”, arXiv:2606.09743 (2026).

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