Is there a systematic way to construct a nondenumerable basis in a nonseparable Hilbert space starting from a non-zero vector? How are two nondenumerable bases of vectors of norm 1 related to each other in a nonseparable Hilbert space? Examples and pointers to literature would also be greatly appreciated.
2026-04-09 03:59:56.1775707196
Bases in non-separable Hilbert spaces
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