# Mathematics Colloquium 2012-13

**Organiser:** Brian Bowditch

Additional colloquia, titles and abstracts will be added as details become available.

Colloquia take place on **Friday** afternoons at **4.00pm**, Lecture Room **B3.02 **in the Mathematics Institute, Zeeman Building. They are directed towards a general mathematical audience. In particular, one the functions of these Colloquia is to inform non-specialists and graduate students about recent trends, ideas and results in some area of mathematics, or a closely related field.

## Summer Term 2012/13

- 26 April 2013
**David Blecher**(Houston)*Noncommutative topology and prescribing behaviour of noncommutative functions on noncommutative subsets*

- 03 May 2013
**Paul Krapivsky**(Boston)*Zero-Temperature Dynamics of Ising Ferromagnets***(ROOM MS.03)** - 10 May 2013 In lieu of Colloquium:
**SIAM National Student Chapter Conference 2013 (ROOM MS.01):**

**Nicholas J. Higham**(Manchester)*Accuracy and Reproducibility of Numerical Computations*

**Mark Jerrum**(Queen Mary, London)*Phase transitions and computational tractability* - 17 May 2013
**Tullio Ceccherini-Silberstein**(Universita' del Sannio Benevento)*Cellular automata, amenable groups, surjunctivity, and sofic groups* - 24 May 2013
**Damiano Testa**(Warwick)*Rational points on surfaces*

- 31 May 2013
**Philip Welch**(Bristol)*Turing Unbound: black holes, computers, neural nets, bangs, shrieks, transfinite ordinals, and the kitchen sink*

- 07 June 2013
- 14 June 2013
**Ian Leary**(Southampton)*Platonic polygonal complexes* - 21 June 2013
**Jeremy Quastel**(Toronto)*The Kardar-Parisi-Zhang equation and universality class*

- 28 June 2013

## Spring Term 2012/13

- 11 January 2013
**Eric Smith**(Santa Fe)*Generating functional methods for non-equilibrium Markov processes* - 18 January 2013
**Derek Holt**(Warwick)*Maximal subgroups of finite (almost) simple groups* - 25 January 2013
**Simon Ruijsenaars**(Leeds)*Calogero-Moser systems: A crossroads in mathematics and physics*

- 01 February 2013
**Ben Green**(Cambridge)*On the Sylvester-Gallai theorem* - 08 February 2013
**Sylvia Serfaty**(Paris 6 and Courant Institute)*Coulomb gas, Renormalized energy and Abrikosov lattice* - 15 February 2013
**Alan Sokal**(New York University and University College London)

*Roots $x_k(y)$ of a formal power series $f(x,y) = \displaystyle \sum\limits_{n=0}^\infty a_n(y) \, x^n$, with applications to graph enumeration and $q$-series***(Slides available here)** - 22 February 2013
**Marc Lackenby**(Oxford)*A polynomial upper bound on Reidemeister moves* - 01 March 2013
**Rich Schwartz**(Brown University)*Thomson's 5-electron problem* - 08 March 2013
**Roger Plymen**(Southampton)*2 by 2 matrices as stepping-stones* - 15 March 2013

## Autumn Term 2012/13

- 05 October 2012
**Dwight Barkley**(Warwick)*Lecturing maths electronically - what I learned from Geometry and Motion* - 12 October 2012
**Barbara Fantechi**(SISSA, Trieste)*Stacky viewpoint on Intersection theory* - 19 October 2012
**David Evans**(Cardiff)*The search for the exotic - subfactors and conformal field theories*

- 26 October 2012
**Tom Sanders**(Oxford)*Approximate Groups* - 02 November 2012
**Cornelia Drutu**(Oxford)*On limit spaces and actions of groups* - 09 November 2012
**Oliver Jenkinson**(Queen Mary, London)*Go forth and multiply by 10: digit expansions and optimal inequalities* - 16 November 2012
**Roger Heath-Brown**(Oxford)*Diophantine equations, Algebra, Geometry, Analysis & Logic* - 23 November 2012
**Athanasios Tzavaras**(University of Crete)*On the structure and properties of the equations of nonlinear elasticity* - 30 November 2012
**Jon Keating**(Bristol)*Primes, Polynomials and Random Matrices* - 07 December 2012 - Meeting in lieu of Colloquium:
**Caroline Series**(Warwick)*Department Open Meeting: What is Athena Swan all about?*