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Questions
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Homology theory constructed in a homotopy-invariant way

sep 29 at 21:18 Ronnie Brown 5,287●19●20

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Is every closed set of Q² the intersection of some connected closed set of R² with Q²

may 16 11 at 12:25 over 1

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Forcing over an arbitrary model of ZFC

jan 6 11 at 1:57 Jason 1,944●1●5●16

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Topological spaces whose continuous image is always closed

oct 23 10 at 7:52 Pietro Majer 19.7k●1●24●69

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Ricci flow with surgery in dimension 2

dec 7 10 at 22:29 Dan Lee 433●1●5

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745
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Homotopy groups of spheres in a $(\infty, 1)$-topos

oct 27 11 at 21:17 Charles Rezk 12.9k●1●31●66

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Large cardinal axiom: everything that happen once must happen an unbounded number of times

nov 9 11 at 0:02 Joel David Hamkins 75.5k●8●189●347

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End point compactification for metric spaces

oct 28 10 at 12:10 François G. Dorais♦ 22.7k●2●49●114

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Abelian groups as fundamental groups of topological groups

nov 11 10 at 16:02 Georges Elencwajg 24.3k●65●132

 
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3
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578
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Locally compact separable metric spaces

nov 11 10 at 12:52 BS 5,313●1●12●25

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