Universal function for a weighted space L^1_u[0,1]
arXiv:1701.05776
Abstract
It is shown that there exist such a function g from L^1[0,1] and a weight function 0<u(x)<=1 that g is universal for the weighted space L^1_u[0,1] with respect to signs of its Fourier-Walsh coefficients.
arXiv admin note: text overlap with arXiv:1512.07786