Banach space theory, a cornerstone of functional analysis, investigates complete normed vector spaces and the continuous linear operators acting between them. Within this framework, operator ideals ...

We construct an infinite-dimensional superreflexive real Banach space which does not admit complex structure and consequently is not isomorphic to the Cartesian square of any Banach space. We also ...

Fixed point theory is a cornerstone in modern analysis, offering pivotal tools for proving the existence and uniqueness of solutions to equations arising in diverse scientific and engineering contexts ...