Pitt theorem
= Pitt theorem
{c}
{wiki=Pitt's_theorem}
Pitt's theorem implies in particular that every bounded operator $c_0\to\ell^1$ is compact. Thus two nonreflexive Banach spaces can have only weakly compact operators between them.
= Pitt theorem
{c}
{wiki=Pitt's_theorem}
Pitt's theorem implies in particular that every bounded operator $c_0\to\ell^1$ is compact. Thus two nonreflexive Banach spaces can have only weakly compact operators between them.