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Results tagged with gr.group-theory
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user 140206
Questions about the branch of algebra that deals with groups.
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Reference for Schur multiplier identity
Let $G$ be a finite group and $H$ a normal subgroup of $G$. I recently stumbled upon the following identity for the Schur multiplier of $G/H$:
$$\operatorname{H}_2(G/H,\mathbb{Z}) \cong \frac{\overli …
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