1d
comment "Isomorphy" in mathematical texts
I have added an explanation.
1d
revised "Isomorphy" in mathematical texts
explanation
1d
comment "Isomorphy" in mathematical texts
I there is common agreement on that, can feel free to migrate it.
1d
comment "Isomorphy" in mathematical texts
I there is common agreement on that, can feel free to migrate it.
1d
asked "Isomorphy" in mathematical texts
1d
asked "Isomorphy" in mathematical texts
Oct
18
accepted Is there a standard for capitalization in references of math papers?
Oct
18
asked Is there a standard for capitalization in references of math papers?
Oct
17
comment Take contraction wrt a vector field twice and define kernel mod image. Does that give anything interesting?
This reminds of the hairy ball theorem. On the plane the "vector field homology" is boring, but so is the plane in general. But on manifolds where vector fields necessarily vanish, interesting things may happen.
Oct
15
asked terminology: "complex" and "sequence" in homological algebra
Oct
14
asked Capitalization of "Subsection"
Oct
9
asked Locally finite refinement with restricted class of covering sets
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
6
awarded Nice Question
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?
Oct
2
asked Basis of vector space invariant under group action (of symmetric group)
Oct
1
asked If matrices describe simplices, what do matrix operations describe?
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