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location  Lancaster, United Kingdom  
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visits  member for  5 years 
seen  14 mins ago  
stats  profile views  18,270 
Just when I thought I was out, they pull me back in
13h

reviewed  Leave Open Special retraction from a metric space onto an arc 
14h

reviewed  Close How to best fit for linear vs sinusoidal curve 
16h

comment 
how to compute bergman kernel
Bergman kernel for what kinds of domain? 
18h

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Talking about the abcconjecture
Peter Woit's blog doesn't use the words "slack off" AFAIK 
18h

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Talking about the abcconjecture
"Does the community is slack off or isn't even wrong?" Do you honestly believe this tone is constructive? 
20h

comment 
lower bound of a trace quadratic form
I missed the fact that X is strictly positive definite; however, one can easily find examples where AX is as small as desired while A and X have trace 1 
21h

reviewed  Close Is the ISC kaput 
22h

reviewed  Leave Open quasi rationality, interesting axiom of revealed preferences 
22h

comment 
How to find secret key and public key for ECC cryptosystem?
This question appears to be offtopic because MO is not Jeeves 
22h

comment 
lower bound of a trace quadratic form
Looking at diagonal matrices A and X where AX=0 makes me wonder: what could one possibly hope for beyond the trivial bound? 
1d

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Zeromean assumptions concerning r.d.'s when reading graduatelevel probability texts
The variance of a random variable is unchanged if you add a constant to that random variable. Multiplying a random variable by a real constant $c$ has the effect of multiplying the expectation by $c$ and the variance by $c^2$. These are basic results of probability theory, hardly graduate level 
1d

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Obscure Names in Mathematics
Oh come on  if we are going to add theorems named after the wrong people then we will be here all day... 
1d

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Zeromean assumptions concerning r.d.'s when reading graduatelevel probability texts
Does applying the meanzero case to $X{\bf E}X$ not answer this? 
2d

reviewed  Close Geometrically connected curve 
2d

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Geometrically connected curve
This question appears to be offtopic because it is solved by using a search engine 
2d

reviewed  Close state of art pseudoboolean optimization solver 
2d

comment 
Intuition behind $\zeta(2) = \frac{\pi^2}{6}$
Not everything in maths can be justified by a reason that feels "intuitive", and "intuition" is highly subjective 
2d

reviewed  Close Conformal map from a sector of unit disk onto upper half plane 
2d

reviewed  Close How to prove that the vertices of a convex hull are only defined by some specific subsets, in this particular case 
2d

reviewed  Close What should be considered a finite size of an infinite dimensional space? 