Let $H$ be an Hilbert space over $\mathbb{C}$ and let $\{h_m\}_{m \in \mathbb{N}}$ be an its basis.
Is it possible that $\inf_{m \in \mathbb{N}} \|h_m\| = 0$
Thanks.
Let $H$ be an Hilbert space over $\mathbb{C}$ and let $\{h_m\}_{m \in \mathbb{N}}$ be an its basis.
Is it possible that $\inf_{m \in \mathbb{N}} \|h_m\| = 0$
Thanks.
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