2h
accepted Is this strengthening of paracompactness known?
1d
comment Is this strengthening of paracompactness known?
Ok, that was a typo.
1d
revised Is this strengthening of paracompactness known?
typo
1d
asked Is this strengthening of paracompactness known?
Jan
24
asked Does the Conjugate Gradient Method provide an eigenvalue estimate?
Jan
24
comment What's the difference between conjugate gradient method and biconjugate gradient method
Out of purely theoretical interest: If you apply BiCG (or BiCGStab) to a symmetric positive matrix, is this method formally equivalent to something known?
Jan
13
asked If there monomorphisms $f : A \rightarrow B$ and $g : B \rightarrow A$ then there is an isomorphism $h : A \rightarrow B$
Jan
12
comment Take contraction wrt a vector field twice and define kernel mod image. Does that give anything interesting?
Do you know what happens if $d\alpha \neq 0$ holds? I would be highly interested in a reference that develops this case for people with differential geometric background.
Jan
10
asked Can you equip every vector space with a Hilbert space structure?
Jan
10
asked Can you equip every vector space with a Hilbert space structure?
Dec
29
comment Is there an equivalent prestige dialect of German in the same way Received Pronunciation is to English? If so, how did it come about?
Thumbs up for mentioning Luther.
Dec
29
asked Pronunciation of Brötchen
Dec
22
awarded Popular Question
Dec
14
accepted "conal" vs "conical"
Dec
14
asked Covariant derivative of vector field along itself: $\nabla_X X$
Dec
12
asked Known algorithms for Graph isomorphism
Dec
10
awarded Yearling
Dec
10
awarded Yearling
Dec
10
asked "conal" vs "conical"
Dec
10
awarded Popular Question
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