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Orthonormal sequence

An orthonormal sequence

(e_{n})

satisfies

⟨ e_{n}, e_{m} ⟩ = 0

for

n \neq = m

and

∥ e_{n} ∥ = 1

.

Table of contents 72 3
- Hilbertian basis Orthonormal sequence 46 1
  - Parseval identity for a Hilbertian basis Hilbertian basis 15
- Bessel inequality Orthonormal sequence 12

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