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Aug 3, 2010 at 15:59 comment added Victor Protsak Any topological vector space $V$ is homogeneous viewing addition as an action of the underlying group of $V$ on $V.$
Aug 3, 2010 at 15:17 vote accept Ivan Gundyrev
Aug 3, 2010 at 14:22 comment added Anweshi I have edited the answer.
Aug 3, 2010 at 14:21 history edited Anweshi CC BY-SA 2.5
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Aug 3, 2010 at 14:08 comment added Anweshi @Ivan: In any case, Sergei Ivanov assures us that Banach spaces are homogeneous. Infinite dimensional Banach spaces are complete and not locally compact. Therefore it would be an example. If you want a concrete example you can take the space of continuous functions on an interval, with supremum norm.
Aug 3, 2010 at 14:05 comment added Ivan Gundyrev I mean Definition: A metric space $(X,d)$ is called homogeneous if the group of its isometries acts transitively on $(X,d)$.
Aug 3, 2010 at 14:03 comment added Anweshi @Sergei Ivanov: The wikipedia article gives the definition only for vector spaces. I have edited the answer to include this.
Aug 3, 2010 at 14:02 history edited Anweshi CC BY-SA 2.5
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Aug 3, 2010 at 14:01 comment added Sergei Ivanov What is $\alpha x$ for a metric space? I think that "homogeneous" means that the isometry group is transitive. Anyway, Banach spaces are homogeneous.
Aug 3, 2010 at 13:56 history answered Anweshi CC BY-SA 2.5