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Results tagged with gr.group-theory
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user 55916
Questions about the branch of algebra that deals with groups.
14
votes
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answers
918
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Units in group rings.
Let $G$ be a finite solvable group of order $n$, and let $g_1 ... g_n$ be an enumeration of its elements. Let $a_1 ... a_n$ be a sequence of integers, such that $\sum a_i$ is relatively prime to $n$. …
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