Resumen de On complemented subspaces of rearrangement invariant function spaces
Yves Raynaud 
A necessary and sufficient condition is given for a r.i. function space to contain a complemented isomorphic copy of $\ell_1(\ell_2)$.
Yves Raynaud
A necessary and sufficient condition is given for a r.i. function space to contain a complemented isomorphic copy of $\ell_1(\ell_2)$.
