Ricky Li - One plus one space

About Me

I'm a PhD student studying mathematical physics at the University of York. Specifically, I'm working on renormalisation of two-dimensional field theories.

One plus one space, or the Minkowski plane, is the background spacetime on which most of the known quantum integrable systems are defined, such as the quantum sine-Gordon theory, which is what I'm currently working on.

I have a YouTube channel at https://www.youtube.com/@OnePlusOneSpace/.

I also edit Wikipedia at https://en.wikipedia.org/wiki/User:Zephyr_the_west_wind.

Email: ricky[dot]li[at]york[dot]ac[dot]uk

Teaching

Year 2023-24, Semester 1: Vector & Complex Calculus

Year 2023-24, Semester 2: Introduction to Applied Mathematics, Quantum and Continuum Dynamics

Maths

Biofilm Morphogenesis

Expository notes including part III essay

Popular science article on solitons

Physics and geometry

The Belt Trick

Pseudospheres and sine-Gordon

Manim practice

Hopf fibration

Möbius maps and stars in the sky

Roots and weights

Root systems

Irreducible representations of sl(3)

Weight diagrams of other rank 2 root systems

(Last edited: 30th September 2024)