Larson's conjecture on wavelet sets in Fourier supports

Let obreak\thetap obreak\thetap be a dyadic orthonormal wavelet, and let u u be its Fourier transform. A wavelet set is a measurable set ERE\subset\mathbb{R} such that

kZ(E+k)=Ra.e.,jZ2jE=Ra.e.\bigcup_{k\in\mathbb{Z}}(E+k)=\mathbb{R}\quad\text{a.e.},\qquad \bigcup_{j\in\mathbb{Z}}2^jE=\mathbb{R}\quad\text{a.e.}

Larson's conjecture. The support of the Fourier transform of a dyadic, orthonormal wavelet contains a wavelet set.

The conjecture asks whether every dyadic orthonormal wavelet has a Fourier support containing a measurable set that tiles obreakR obreak\mathbb{R} by integer translations and dyadic dilations. Its status is not specified in the source.

Sources & referencesView supporting material

Primary source

Marcin Bownik, Ziemowit Rzeszotnik and Darrin Speegle, “Are MSF wavelets minimally supported?”, arXiv:2507.09818 (2025).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.