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Results tagged with gn.general-topology
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user 8286
Continuum theory, point-set topology, spaces with algebraic structure, foundations, dimension theory, local and global properties.
3
votes
Non-homeomorphic spaces that have continuous bijections between them
I don't have my copy of Kelley handy but I think in chapter 1 he gives the example where X is a countable disjoint union of open intervals and a countable discrete set while Y is a countable disjoint …
1
vote
Topological spaces that resemble the space of irrationals
Hello, Dan: Two countable dense subsets of the reals are order isomorphic and this extends to a homeomorphism of the reals. In particular, two countable dense subsets are homeomorphic via the restric …
- 11