In this paper we first explicit a subset of the set (l(subscript p), l(subscript u)) for 1≤p<∞ and 0<u<∞. Then we deal with the space bv(superscript h subscript p)(α)(△(superscript h)) for h>0 real, generalizing the well-known set of p-bounded variation bv(subscript p)=l(subscript p)(△), and characterize martix transformations mapping from bv(superscript h subscript p)(α) to bv(superscript k subscript u)(β) for 1≤p≤∞ and 0<u≤∞.