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Questions
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Topological characterization of the closed interval $[0,1]$.

mar 7 at 22:53 Ali Enayat 4,459●1●9●23

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Compactness of the Hilbert cube without the Axiom of Choice

jan 21 at 16:19 Alexey Muranov 465●2●9

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Are acyclic subcomplexes of finite contractible 2-complexes contractible?

mar 15 at 9:49 Alexey Muranov 465●2●9

 
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Is the Euler characteristic of aspherical connected 2-complexes at most 1? (No!) What can be said about subcomplexes of 2-complexes deformation retractible onto graphs.

feb 16 12 at 8:47 a-fortiori 2,786●5●11