The Nielsen Theory Web Machine

Compute a Nielsen number

Specify a group G and an endomorphism φ:G→G. We will compute the Nielsen number of a mapping on a space with fundamental group G whose induced homomorphism is φ.

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The NTWM is by Chris Putnam and Chris Staecker. Spinning dots graphic from MediaWiki commons, licenced CC-by-sa 2.5 by User:FlipDarius