If $G$ is a finite group then the **Schur multiplier** of $G$ is the homology group $H_2(G, \Z)$. It is the maximal kernel of a stem extension of $G$. In the data, the Schur multiplier is represented as a list of invariant factors; e.g., `[2,4,12]`

corresponds to the abelian group $C_2 \times C_4 \times C_{12}$.

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- Review status: reviewed
- Last edited by John Voight on 2023-07-11 16:28:12

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**History:**(expand/hide all)

- 2023-07-11 16:28:12 by John Voight (Reviewed)
- 2023-06-16 21:27:29 by Sam Schiavone
- 2023-06-16 21:27:06 by Sam Schiavone
- 2021-09-27 17:50:42 by David Roe (Reviewed)

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