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math.CA2026
An SU(2n)-valued nonlinear Fourier transform
Michel Alexis, Lars Becker, Diogo Oliveira e Silva +1
We define a nonlinear Fourier transform which maps sequences of contractive matrices to -valued functions on the circle . We characterize the image…
math.CA2025
Carleson operators on doubling metric measure spaces
Lars Becker, Floris van Doorn, Asgar Jamneshan +2
Doubling metric measure spaces provide a natural framework for singular integral operators. In contrast, the study of maximally modulated singular integral operators, the so-called…
math.CA2025
A blueprint for the formalization of Carleson's theorem on convergence of Fourier series
Lars Becker, MarÃa Inés de Frutos-Fernández, Leo Diedering +14
This paper is the blueprint underlying the Lean formalization of the proof of Carleson's classical result asserting almost everywhere convergence of Fourier series of continuous fu…