Author

P. Motakis

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Preprint Sep 2026

Explicity Defined Norms on $JT_*$ Spaces

We present a Banach space $X_\alpha$, equipped with an explicit norm, whose properties resemble those of the predual $JT_*$ of the James Tree space. In particular, $X_\alpha$ admits a shrinking dyadic basis with the property that the sums of its elements over any segment are uniformly bounded. The space $X_\alpha$ is c...

S. Argyros, P. Motakis · 0 citations

Open access Aug 2026

Embedding $$\ell _2$$ and J into subspaces of JT and $$JT^*$$

<jats:p> In the first part of the paper we show that every closed subspace of <jats:italic>JT</jats:italic> or <jats:inline-formula> <jats:alternatives> <jats:tex-math>$$JT^*$...

S. Argyros, Manuel González, P. Motakis · Revista Matemática Compluten... · 0 citations