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Feb
7
accepted Is $\mathbb{N}$ definable in $(\mathbb{Z},0,S)$?
Jan
29
accepted A prime ideal with the algebraic set reducible
Nov
5
accepted How can associated primes be distributed among submodule and quotient?
Aug
16
accepted Does extension of scalars take Noetherian modules to Noetherian modules?
Jul
26
accepted If every finite subcomplex is nullhomotopic, is a simplicial complex contractible?
Jan
13
accepted Is there an infinite connected topological space such that every space obtained by removing one point from it is totally disconnected?
Dec
16
accepted Can a vector subspace have a unique complement in absence of choice?
Dec
16
accepted Are compact spaces characterized by “closed maps to Hausdorff spaces”?
Aug
3
accepted Salvaging a damaged cable
Aug
2
accepted If a fixed point is a limit of a subsequence of iterates, must the whole sequence converge to it?
Jun
21
accepted What subsets of a covering space cover their image?
May
27
accepted Why does the (topology given by) Hausdorff metric depend only on the topology?
May
25
accepted Can a finitely generated $\mathbb{Z}$-algebra contain $\mathbb{Q}$?
May
11
accepted Why isn't there a continuously differentiable surjection from $I \to I \times I$?
Dec
8
accepted How can Busy beaver($10 \uparrow \uparrow 10$) have no provable upper bound?
Oct
1
accepted Automorphisms of $\mathbb{F}_2[x,y]$
Aug
25
accepted Does an orientable subbundle of an orientable vector bundle always have a orientable complement?
Aug
4
accepted Continuous maps between compact manifolds are homotopic to smooth ones