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Jan
29
comment Is this strengthening of paracompactness known?
Ok, that was a typo.
Jan
29
revised Is this strengthening of paracompactness known?
typo
Jan
28
asked Is this strengthening of paracompactness known?
Jan
24
asked Does the Conjugate Gradient Method provide an eigenvalue estimate?
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
10
asked Can you equip every vector space with a Hilbert space structure?
Dec
14
asked Covariant derivative of vector field along itself: $\nabla_X X$
Dec
7
asked Example of recurrence relation without closed form expression?
Dec
1
asked Which general methods of field construction do we know?
Nov
16
awarded  Yearling
Nov
15
awarded  Popular Question
Oct
20
comment “Isomorphy” in mathematical texts
I have added an explanation.
Oct
20
revised “Isomorphy” in mathematical texts
explanation
Oct
20
comment “Isomorphy” in mathematical texts
I there is common agreement on that, can feel free to migrate it.
Oct
20
asked “Isomorphy” in mathematical texts
Oct
7
asked Characteristic polynomial and Jordan normal form of permutation matrices
Oct
7
comment Term of partially ordered set with “levels”
Not necessarily, although in the application I have in mind, the sets $X_i$ are antichains. Thanks for making me aware of that.
Oct
7
asked Term of partially ordered set with “levels”
Oct
2
revised Basis of vector space invariant under group action (of symmetric group)
added application
Oct
2
comment Basis of vector space invariant under group action (of symmetric group)
What is $c_2$? However, indeed, such a basis might not exist, but how can this be shown?