New talks

• Feynman’s Fabulous Formula in the Ising Model. Talk given in Postgraduate Seminar at Stellenbosch, 30 August 2019. I also have an older talk I gave in Oxford on the geometry of the Ising model.
• The Jones polynomial of knots. Talk given to Stellenbosch University Mathematics Society, 24 April 2019.

Some recent seminar and colloquium talks

• From the finite Fourier transform to topological quantum field theory,
  North-meets-South colloquium, Mathematical Institute, Oxford, 6 May 2016.

• String-net descriptions of TQFTs and the lifting map.
  Edinburgh Mathematical Physics Group (EMPG) seminar, 16 March 2016.

• Three-dimensional bordism representations,
  Edinburgh Geometry seminar (EDGE), 17 March 2016.

• Two different graphical descriptions of 3d TQFTs,
  Sheffield topology seminar, 17 November 2015.

• Graphical calculus for 3d TQFTs,
  Oxford topology seminar, 2 November 2015.

Some recent invited talks at workshops and conferences

• Spin-net formalism for 3-dimensional toplogical quantum field theories,
  Higher Structures in Geometry and Physics conference, Max Planck Institute, Bonn, 12-16 October 2015.

• The centre of a fusion category, the adjoint representation, and the tube algebroid.
  Higher topological quantum field theory and categorical quantum mechanics workshop, ESI Institute, Vienna, 19-23 October 2015.

• Three-dimensional bordism representations from generators and relations,
  Parameterized Morse Theory and Low-Dimensional and Symplectic Topology workshop, Banff, March 2014.

• Three-dimensional bordism representations from generators and relations,
  Structures on Tensor Categories and Topological Field Theories workshop, Erlangen, March 2014.

General interest talks / Fun talks

• Lagrangian subspaces and Fourier transforms,
  Seminar on Contextuality and Noncommutative Geometry, Oxford, 9 Mar 2016.

• More geometry of the Ising model,
  Pizza seminar on mathematical physics, geometry and topology, Oxford, 4 Nov 2015.

• The geometry of the Ising model,
  Oxford Junior Geometry and Topology seminar, 7 May 2015.

• The geometry of force,
  Stellenbosch Theoretical Physics Seminar, 19 Sep 2013.

• Transformation optics and cloaking devices,
  VLS Seminar, 3 August 2012.

• Filling space with knotted circles (write-up, some slides)
  Stellenbosch colloquium talk, 22 Nov 2010.

• Random matrices and the Riemann zeros,
  Talk given in the Stellenbosch postgraduate seminar, 5 March 2009.