 Universal coefficient theorem for cohomology

ID: universal-coefficient-theorem-for-cohomology

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

G

0 \to Ext (H_{n - 1} (X; Z), G) \to H^{n} (X; G) \to Hom (H_{n} (X; Z), G) \to 0.

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