Littlewood-Paley characterization for $Q_{\alpha }(R^n)$ spaces

Qifan Li

In Baraka's paper [2], he obtained the Littlewood-Paley characterization of Campanato spaces $L^{2,\lambda }$ and introduced ${\mathcal{L}}^{p,\lambda ,s}$ spaces. He showed that $\mathcal {L}^{2…