A note on James spaces and superstrictly singular operators
  An elementary lemma is used in order to show that the natural inclusion $J_p\to J_q$ of James spaces is superstrictly singular for $p<q$. As a consequence, it is shown that an operator without nontrivial invariant subspaces constructed by Charles Read is superstrictly singular. 
Isabelle Chalendar (ICJ), Emmanuel Fricain (ICJ), Dan Timotin