The paper deals with spaces of Sobolev type where s > 0, 0 < p ≤ ∞, and their relations to corresponding spaces of Besov type where s > 0, 0 < p ≤ ∞, 0 < q ≤ ∞, in terms of embedding and real interpolation.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-sm201-1-6, author = {Hans Triebel}, title = {Sobolev-Besov spaces of measurable functions}, journal = {Studia Mathematica}, volume = {196}, year = {2010}, pages = {69-86}, zbl = {1229.46026}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm201-1-6} }
Hans Triebel. Sobolev-Besov spaces of measurable functions. Studia Mathematica, Tome 196 (2010) pp. 69-86. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm201-1-6/