Total subspaces in dual Banach spaces which are not norming over any infinite-dimensional subspace
Tom 105 / 1993
Studia Mathematica 105 (1993), 37-49
DOI: 10.4064/sm-105-1-37-49
Streszczenie
The main result: the dual of separable Banach space X contains a total subspace which is not norming over any infinite-dimensional subspace of X if and only if X has a nonquasireflexive quotient space with a strictly singular quotient mapping.
