Subspaces of separable $L_1$-preduals: $W_{\alpha }$ everywhere

Emanuele Casini, Enrico Miglierina, Łukasz Piasecki

The spaces $W_{\alpha }$ are the Banach spaces whose duals are isometric to ${\ell }_1$ and such that the standard basis of ${\ell }_1$ is $w^{\ast }$-convergent to $\alpha \in {\ell }_1$. The core result of o…