Complete latticeability in vector-valued sequence spaces

Abstract

First we adjust a technique due to Jim\'enez-Rodr\'iguez to prove the complete latticeability of the set of disjoint non-norm null weakly null sequences and of the set of disjoint non-norm null regular-polynomially null sequences in Banach lattices. Then we apply the mother vector technique to prove the complete latticeability of $\lambda_\pi(E) \setminus \lambda_s(E)$, which implies the complete latticeability of $(\ell_p\widehat{\otimes}_{|\pi|}E)\setminus(\ell_p\widehat{\otimes}_{\pi}E)$, where $E$ is a Banach lattice and $1 < p < \infty$.