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Results tagged with gr.group-theory
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user 42323
Questions about the branch of algebra that deals with groups.
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Is SL_n of an order in a number ring finite-index in SL_n of the number ring?
Let $\mathcal{O}$ be the ring of integers in an algebraic number field and let $R \subset \mathcal{O}$ be an order. For instance, we might have $\mathcal{O} = \{\text{$x+i y$ $|$ $x,y \in \mathbb{Z}$ …
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