l∞-sums and the Banach space l∞/ c0
Christina Brech, Piotr Koszmider · Fundamenta Mathematicae · 2014
This paper is concerned with the isomorphic structure of the Banach space $\ell _\infty /c_0$ and how it depends on combinatorial tools whose existence is consistent with but not provable from the usual axioms of ZFC. Our main global result is that it is