Embedding ${\ell }_2$ and $J$ into subspaces of $JT$ and $J{T}^{\ast }$

Spiros A. Argyros, Manuel Gonzalez, Pavlos Motakis

In the first part of the paper we show that every closed subspace of $JT$ or $J{T}^{\ast }$ contains ${\ell }_2$ complemented in $JT$ or $J{T}^{\ast }$ respectively, and $JT$ contains uncomplemented…