Theory of Function Spaces IV

This book is the continuation of the &quote;Theory of Function Spaces&quote; trilogy, published by the same author in this series and now part of classic literature in the area of function spaces. It can be regarded as a supplement to these volumes and as an accompanying book to the textbook by D.D. Haroske and the author &quote;Distributions, Sobolev spaces, elliptic equations&quote;.