On wavelet polynomials and Weyl multipliers

Anna Kamont, Grigori A. Karagulyan

For the wavelet type orthonormal systems ${\varphi }_n$, we establish a new bound \begin{equation} \left\|\max_{1\le m\le n}\left|\sum_{j\in G_m}\langle f,ϕ_j\rangle ϕ_j\right|\right\|_p\le…