J. Castillo

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math.FA2026★ 3 cited

The behaviour of quasi-linear maps on $C (K)$ -spaces

FÃ©lix Cabello SÃ¡nchez, JesÃºs M. F. Castillo, Alberto Salguero-AlarcÃ³n

In this paper we combine topological and functional analysis methods to prove that a non-locally trivial quasi-linear map defined on a $C (K)$ must be nontrivial on a subspace isomo…

math.FA2024

A forgotten theorem of OrtyÅski, not far off

We combine techniques of OrtyÅski \cite{orty} and Moreno and Plichko \cite{moreplic} to show that, for $0 < p < \infty$ , every subspace of $ℓ_{p} (I^)$ having density character $\math…

The behaviour of quasi-linear maps on C(K)-spaces

A forgotten theorem of OrtyÅski, not far off

The behaviour of quasi-linear maps on $C (K)$ -spaces

A forgotten theorem of OrtyÅski, not far off