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A topological group is a group $G$ together with a topology on the elements of $G$ such that the group operation and group inverse function are both continuous (with respect to the topology).

9 votes
2 answers
262 views

group actions in dimension 2 and 3

I am looking for a reference to the following claims: Any compact group (connected or not) acting on $S^2$ is differentiably conjugate to a linear action. This must be classical. A circle $S^1$ …
wolfgang ziller's user avatar