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The unit ball of the Hilbert space in its weak topology
Authors:Antonio Avilé  s
Affiliation:Departamento de Matemáticas, Universidad de Murcia, 30100 Espinardo (Murcia), Spain
Abstract:We show that the unit ball of $ ell_p(Gamma)$ in its weak topology is a continuous image of $ sigma_1(Gamma)^mathbb{N}$, and we deduce some combinatorial properties of its lattice of open sets which are not shared by the balls of other equivalent norms when $ Gamma$ is uncountable.

Keywords:Uniform Eberlein compact   polyadic space   $ell_p$ spaces   Hilbert space   weak topology   equivalent norm
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