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math.MG2021
Linearity of isometries between convex Jordan curves
Javier Cabello Sánchez
In this paper, we show that the -differentiability of the norm of a two-dimensional normed space depends only on distances between points of the unit sphere in two different w…
math.FA2021★ 3 cited
A precision on the concept of strict convexity in non-Archimedean analysis
Javier Cabello Sánchez, José Navarro Garmendia
We prove that the only non-Archimedean strictly convex spaces are the zero space and the one-dimensional linear space over , with any of its trivial norm…