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Godefroy–Kalton–Lancien conjecture on Banach spaces with summable Szlenk index
Let $X$ be a Banach space with summable Szlenk index, and suppose that its dual $X^{*}$ is isomorphic to $\ell_{1}$ . Godefroy–Kalton–Lancien conjecture. Then $X$ is isomorphic to…
Conjectureopenbanach-spaces isomorphism-theory szlenk-indexarXiv posted 2 days ago

Godefroy–Kalton–Lancien conjecture on Banach spaces with summable Szlenk index