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arXiv · 2605.06622

On the plasticity of the unit spheres of $\ell_1$, $\ell_{\infty}$, $c$, and Hilbert spaces

Maksym Levchenko·Olesia Zavarzina
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Abstract

This paper demonstrates the expand-contract plasticity of the unit spheres of $\ell_1$, $\ell_{\infty}$, and $c$. Furthermore, it establishes the strong plasticity of the unit spheres of Hilbert spaces.

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Maksym Levchenko, Olesia Zavarzina. 2026-05-07. On the plasticity of the unit spheres of $\ell_1$, $\ell_{\infty}$, $c$, and Hilbert spaces. https://arxiv.org/abs/2605.06622

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