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Dec
18
accepted Tychonoff's theorem for products of finite discrete topologies?
Dec
17
accepted The Galois group of a composite of Galois extensions
Nov
26
accepted Cauchy-Lipschitz (or Picard-Lindelöf) theorem for Banach spaces?
Nov
22
accepted Can a smooth vector-valued function approximated by functions taking value in a dense subspace?
Oct
28
accepted The relation between homotopy equivalence and contractible mapping cone?
Jul
18
accepted Approximation of irrational numbers?
Jun
7
accepted Quotient manifold theorem provides a fibration?
May
9
accepted Long exact sequence for a triple follows from long exact sequence for a pair?
Mar
28
accepted The hyper-derived functors $\mathbb L_\bullet F$ are just derived functors of $H_0F$?
Feb
12
accepted Book suggestions on projective geometry
Jan
28
accepted Homotopically equivalent to Čech nerve?
Jan
28
accepted A seemingly wrong definition of convergence of spectral sequences in Bott & Tu?
Jan
18
accepted Convergence of a sequence with assumption that exponential subsequences converge?
Jan
16
accepted Estimating $\mathbb P\{\max_{1\le j\le n}\lvert S_j\rvert\le t\}$, so called Charles Stein's theorem?
Jan
7
accepted Completeness implies geodesic completeness, a more conceptual way?
Dec
31
accepted Do unit normal vectors of extremal points on a compact hypersurface have opposite directions?
Nov
21
accepted Any real analytic Frobenius theorem used in the proof of integrable almost complex manifolds to arise from complex manifolds?
Nov
19
accepted $\left\{\,f\in L^1[0,1]\,\big\vert\,\int_0^1\lvert f\rvert^2>1\right\}$ is open
Nov
15
accepted Is the $\sigma$-finiteness condition necessary to ensure that $L^p(\mu)$ is reflexive?
Oct
25
accepted Proper and free action of a discrete group