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Thomas Richards

Hello! I have finished my PhD under the supervision of Professor John SmillieLink opens in a new window, and now work at Kyushu University with Professor Yutaka IshiiLink opens in a new window. I am interested in complex dynamics, in particular, the dynamics of complex Hénon maps.

Previously I studied my MMath at the University of Liverpool and undertook two projects supervised by Professor Mary ReesLink opens in a new window. These projects concerned the dynamics of quadratic polynomials.

With Professor Smillie I studied complex dynamics in two dimensions. We are developing a new notion of external rays for Hénon maps which can be computed in Mathematica. We hope to show these rays converge to the more traditional notion of external rays. Using these rays we are investigating the work of Chris Lipa and hope to develop that into a more rigorous theory.

This notion of external rays leads to approximations of the Hénon Julia set. We can take a projection of the data we generate and produce pictures. An early version of such a picture is shown below. On the left is a SaddleDrop output due to Sarah Koch and the right shows the Mathematica output. More examples can be found hereLink opens in a new window.


I also help organise Warwick's junior geometry and dynamics seminarLink opens in a new window with MarcoLink opens in a new window and SollyLink opens in a new window. If you'd like to give a talk or suggest a speaker, please contact one of us.


Pronouns: He/Him

Email: Thomas.Richards "at" warwick.ac.uk

Office: Room B3.04, Zeeman Building