Resumen de Projections in the J-sums of Banach spaces
Manuel González, Javier Pello-García 
We study some families of projections in the J -sums of Banach spaces J () and Jˆ() introduced by Bellenot. As an application, we show that, under some conditions, J () and Jˆ() are subprojective, i.e., every closed infinite-dimensional subspace of either of them contains a complemented infinite-dimensional subspace
