Geometry of Banach spaces and biorthogonal systems
S. Dilworth, Maria Girardi, W. Johnson (2000)
Studia Mathematica
Similarity:
A separable Banach space X contains isomorphically if and only if X has a bounded fundamental total -stable biorthogonal system. The dual of a separable Banach space X fails the Schur property if and only if X has a bounded fundamental total -biorthogonal system.