### The Tricki

Olof Sisask and I, led by Tim Gowers, are developing and running The Tricki, a wiki of mathematical techniques.

### Postgraduate Group Theory Conference 2007

I co-organised the 9th Annual Postgraduate Group Theory Conference. You can find more details at `www.pgtc2007.org`

.

### Mathematical writing

The following were done during my A-levels, mostly to learn *LaTeX*. Most of this is rubbish, and there is certainly no serious maths here!

- Calculus
- Chi-squared distribution
- Orthogonality of trigonometric functions
- Evaluating the Riemann Zeta function at even parameters
- A proof that the harmonic series diverges
- Integrating a power multiplied by an exponent

More interesting stuff, done during my undergraduate degree.

- Yet another derivation of the value of the normal distribution integral
- An algebraic proof of the fundamental theorem of algebra (PS and DVI)
- My final year dissertation: An introduction to
*p*-adic numbers,*p*-adic integration, and zeta functions of groups (PS and PDF)

### Talks

- Group cohomology: cohomological dimension and Poincaré duality groups (Cambridge Kinderseminar, 30/04/08) (PS and PDF)

### Poetry

No, not by me!

- A poem about topology

### Mathematica

Again, done during my A-levels, while playing with Mathematica. I hardly ever use Mathematica (or any other computer algebra system, for that matter) nowadays.