On pairs of Banach spaces which are isomorphic to complemented subspaces of each other
Elói Medina Galego (2004)
Colloquium Mathematicae
Similarity:
We establish the existence of Banach spaces E and F isomorphic to complemented subspaces of each other but with isomorphic to , m, n, p, q ∈ ℕ, if and only if m = p and n = q.