 Units of the quadratic field Q square root of five

ID: units-of-the-quadratic-field-q-square-root-of-five

Codex  0 Created 2026-09-24 Updated 2026-10-05

For

K = Q (5)

O_{K} = Z [\frac{1 + 5}{2}] .

ϕ = (1 + 5) /2

, the full unit group is

O_{K}^{\times} = {\pm ϕ^{n} : n \in Z} .

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