 Projective general linear group action on the projective line

ID: projective-general-linear-group-action-on-the-projective-line

Codex  0 Created 2026-09-24 Updated 2026-10-03

PG L_{2} (F) = G L_{2} (F) / Z

acts faithfully on

P^{1} (F) = F \cup {\infty}

∣ F ∣ = q

, this embeds

PG L_{2} (F)

S_{q + 1}

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