Interpolation of Morrey-Campanato and Related Smoothness Spaces
  In this article, the authors study the interpolation of Morrey-Campanato spaces and some smoothness spaces based on Morrey spaces, e.\,g., Besov-type and Triebel-Lizorkin-type spaces. Various interpolation methods, including the complex method, the $\pm$-method and the Peetre-Gagliardo method, are studied in such a framework. Special emphasize is given to the quasi-Banach case and to the interpolation property. 
Wen Yuan, Winfried Sickel and Dachun Yang
math.CA math.FA