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Just when I thought I was out, they pull me back in


1d
reviewed Leave Open When is a homogeneous space connected?
1d
revised General integer solution for $x^2+y^2-z^2=\pm 1$
fixed formatting so the formulas can be viewed
1d
comment What role does the quantum torus play in Noncommutative geometry
I agree that the question is too broad in its current form, but you may be interested in arxiv.org/abs/0802.4033
1d
comment Dual of Banach-valued $L^p$
@AndréHenriques just to add to Tomek's comment: X has RNP if and only if every bounded subset of X has the following geometric property ("dentability"): for each $r>0$ there is a point $x\in X$ that does not lie in the convex hull of $X\setminus$ (r-neighbourhood of $x$)
1d
comment Is each multiplicative linear functional on $L^1(SL(2,R):SO(2,R))$ is triviall?
Oh, my mistake: I was thinking of SO(3)-bi-invariant functions. Your question is asking about one-sided SO(3)-invariant functions, right?
2d
comment Exactness of total complex
And what you're after does seem like a "collapse at E_2" argument to me -- there should be examples in Weibel's book where exactly this situation occurs, i.e. homology in each row vanishes except at one end
2d
comment Exactness of total complex
The modified question is better but I think it is still too vague. Instead of asking "is there some kind of partial result", why not say "if I assume these conditions X, can I still conclude Y"?
2d
comment Convert 1-5 Grading Scale to 1-100 Grading System
Wrong site for this kind of question - try math.stackexchange.com instead
2d
comment Survey of Erdős' “Tricks”
@MariusKempe I like Rota's writing style but he was famously fond of being polemical, and Rota saying "X was like this" is not exactly gospel. The rest of the essays and anecdotes in "Indiscrete Thoughts" would bear this out
2d
comment Survey of Erdős' “Tricks”
On the old version of MathOverflow, at one point, there was a maxim "MathOverflow is not for requests for people to write encyclopaedia entries for you." Times may have changed, but I really feel that this kind of question is just a fishing expedition
2d
reviewed Close Laplace equation between circles
2d
reviewed Close Riemann Siegel function and gamma function
2d
reviewed Close Help with Fulton's Toric Varieties Book
2d
comment Help with Fulton's Toric Varieties Book
I'm voting to close this question as off-topic because it was easily answered in comments and the OP has not reappeared
2d
reviewed Leave Open An integral with respect to the Haar measure on a unitary group
2d
reviewed Close Under what conditions there is a one-to-one mapping between a product of matrices and the sequence of matrices leading to the product?
2d
reviewed Close How do I prove this statement about the operator norm?
2d
comment An integral with respect to the Haar measure on a unitary group
Do you need an exact answer or would large $n$ asymptotics suffice? In the second situation, in the case where $A$ and $D$ are diagonal with free entries, one might be able to use an approximation of the spectral distribution of $A-HDH^*$ ($H$ chosen uniformly at random) by the free convolution of $\mu_A$ with $\mu_D$, see e.g. the first few pages of arxiv.org/abs/math/9809193
2d
comment Dual of Banach-valued $L^p$
Just to clarify: presumably there is a missing quantifier, and the full result is: the dual has the desired form for all $\sigma$-finite $(\Omega,\mu)$ if and only if $X^*$ has RNP?
2d
comment Dual of Banach-valued $L^p$
Typo: you mean $L^{p'}({\mathbb R}, X^*)$, right?