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Results tagged with gr.group-theory
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user 100163
Questions about the branch of algebra that deals with groups.
16
votes
3
answers
1k
views
What are some interesting examples of non-classical dynamical systems? (Group action other t...
By classical dynamical system, I mean a measure space together with a measurable action of the integers or the reals. Of course, this action is often interpreted as evolution with respect to discrete …
0
votes
0
answers
343
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Isometry group of a complete separable metric space is Polish?
Let $(X,d)$ be a complete separable metric space, and endow $Iso(X,d)$ with the pointwise convergence topology.
I've seen a few sources say this is clearly a Polish group, but why is this this the c …
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