Convergence of sparse square-summable NLFT
arXiv:2606.06661
Abstract
We study the convergence of SU(1,1) and SU(2) nonlinear Fourier transform with sparse square-summable data. The asymptotics of the associated polynomials orthogonal on the unit circle is obtained as a corollary.
This note is a companion to arXiv:2605.25108, where the general case of square-summable data was studied