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Stabilization of Tsirelson-type norms on spaces
Authors:Anna Maria Pelczar
Affiliation:Institute of Mathematics, Jagiellonian University, Kraków, Poland
Abstract:We consider classical Tsirelson-type norms of $ T[mathcal{A}_n,theta]$ and their modified versions on $ ell_p$ spaces, $ 1<p<infty$. We show that the modified Tsirelson-type norms do not distort any of the subspaces of the $ ell_p$ spaces. We prove that Tsirelson-type norms, being equivalent to their modified versions, may at most 2-distort $ ell_p$ spaces.

Keywords:Tsirelson-type spaces   distortion
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