2017/07/04 by Ling, Bo, Liu, Yongping
#41A25 #41A29 #42A10 #Classical Analysis and ODEs (math.CA) #FOS: Mathematics
paper · doi:10.48550/arxiv.1707.00824
We consider approximation by functions with finite support and characterize its approximation spaces in terms of interpolation spaces and Lorentz spaces.