On Perfectly Homogeneous Bases in Quasi-Banach Spaces

الملخص EN

For 0

For Banach spaces, a classical result of Zippin (1966) proved that perfectly homogeneous bases are equivalent to either the canonical c0-basis or the canonical ℓp-basis for some 1≤p<∞.

In this note, we show that (a relaxed form of) perfect homogeneity characterizes the unit vector bases of ℓp for 0