Weighted embedding theorems for radial Besov and Triebel-Lizorkin spaces
  We study the continuity and compactness of embeddings for radial Besov and Triebel-Lizorkin spaces with weights in the Muckenhoupt class $A_\infty$. The main tool is a discretization in terms of an almost orthogonal wavelet expansion adapted to the radial situation. 
Pablo L. De N\'apoli, Irene Drelichman, and Nicolas Saintier
math.CA math.FA