obstruction theory

E2045035 UNEXPLORED

Obstruction theory is a branch of algebraic topology that studies the step-by-step obstructions to extending continuous maps or structures over spaces, typically detected by cohomology classes.

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Label	Occurrences
obstruction theory canonical	1

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Stiefel–Whitney classes → usedFor → obstruction theory ⓘ