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visits member for 4 years, 10 months
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(formerly user "unknowngoogle", and for a very short time "red herring" but that was a red herring)


Jan
26
awarded  Enlightened
Jan
26
awarded  Nice Answer
Jan
22
revised Abelian varieties as analytic manifolds
edited body
Jan
21
comment Gauge theory on a trivial bundle
@AlexDegtyarev: maybe I'm mistaken, but I think the OP is denoting by $\Omega1(P)$ the $G$-invariant $1$-forms on $P$
Jan
21
comment Gauge theory on a trivial bundle
A small remark: actually $\mathfrak{g}^*$ corresponds to invariant differential forms on $G$, not to the whole of $\Omega^1(G)$
Jan
21
awarded  Socratic
Jan
20
comment When was the “arrow notation” for functions first introduced?
@AD: Oh, yes, I've just realized this.. For some reason my google search didn't return the MSE page.
Jan
20
asked When was the “arrow notation” for functions first introduced?
Jan
17
comment Why is this group called “The Holomorph of a group”
I don't know anything about holomorph groups, but it's probably a word of Greek origin, meaning something like "complete form", "completely formed" or so..
Jan
11
awarded  Notable Question
Jan
5
comment automorphisms of local rings vs local change of coordinates
Oh, when I first read it my tablet was displaying it the wrong way. I can now see the comma, sorry :)
Jan
5
comment automorphisms of local rings vs local change of coordinates
What does $IC^{\infty}(...)$ stand for?
Dec
16
awarded  Notable Question
Dec
12
accepted Can one make a category concrete by “enlarging the universe”?
Dec
12
awarded  Good Question
Dec
12
asked Can one make a category concrete by “enlarging the universe”?
Dec
11
awarded  Popular Question
Dec
2
comment Determining a surface in $\mathbb{R}^3$ by its Gaussian curvature
Oh wait, but in Do Carmo's example they indeed have different extrinsic curvatures...
Dec
2
comment Determining a surface in $\mathbb{R}^3$ by its Gaussian curvature
How is the statement in the second paragraph compatible with examples such as the one in Remark 1 on page 318 of Do Carmo's book "Differential geometry of curves and surfaces"?
Dec
2
comment Are there Zoll pancakes?
Now, instead, does it make sense?... ^_o