Campanato-Morrey spaces and variable Riesz potentials

The aim in this note is to show that the variable Riesz potential operator I alpha(<middle dot>)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$I_{\alpha(\cdot)}$$\end{document} embeds variable exponent grand Morrey spaces Lp(<middle dot>)-0,nu(<middle dot>),theta(G)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$L<^>{p(\cdot)-0,\nu(\cdot),\theta}(G)$$\end{document} into Campanato-Morrey spaces.