本刊英文版Vol.36(2020),No.7论文摘要

Abstracts of Acta Mathematica Sinica,English Series,Nos.7,Vol.36(2020)

New Exceptional Sets and Convergence of the Square Partial Sums of Walsh—Fourier Series Elena PRESTINI Abstract For double Walsh-Fourier series and with f∈L^2([0,1) x [0,1)) we prove two almost orthogonality results relative to the linearized maximal square partial sums operator SN(x,y)f(x,y).