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Simon Nickerson

I did a PhD in computational group theory at Birmingham (UK), finishing in 2005, where I calculated explicit representations of finite simple groups over Z and extensions of Q. Since then I have been gradually forgetting all the maths I learned.

I am currently software developer based in London, UK.

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  • nickerson.org.uk/blog
  • Member for 10 years, 11 months
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  • Last seen Feb 28 at 15:53

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328 How can you prove that a function has no closed form integral? Jul 20 '10
38 A challenge by R. P. Feynman: give counter-intuitive theorems that can be translated into everyday language Jul 21 '10
31 How do you prove that a group specified by a presentation is infinite? Jul 22 '10
25 Division by imaginary number Jul 29 '10
22 Is there a real number lookup algorithm or service? Jul 21 '10
21 Algorithm for calculating $A^n$ with as few multiplications as possible Jul 26 '10
20 Number of finite simple groups of given order is at most $2$ - is a classification-free proof possible? Aug 2 '10
19 Construct a bijection from $\mathbb{R}$ to $\mathbb{R}\setminus S$, where $S$ is countable Jul 22 '10
16 How come $32.5 = 31.5$? (The “Missing Square” puzzle.) Jul 21 '10
16 Are there any functions that are (always) continuous yet not differentiable? Or vice-versa? Jul 20 '10
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