About

I’m Henry Yip (葉昊彥), born and raised in Hong Kong. My training is in mathematical physics at the University of Edinburgh, and I am drawn to problems where geometry, dynamics and computation meet.

Research interests

• The gravitational three-body problem and celestial mechanics
• Integrable systems, in particular Euler’s problem of two fixed centres
• Symplectic and geometric numerical integration
• Dynamical systems and chaos

Education

BSc Mathematical Physics, University of Edinburgh

Research experience

Summer research project, School of Physics and Astronomy, University of Edinburgh (2024). The gravitational three-body problem, supervised by Prof. Jenni Smillie. I built symplectic integrators to study the figure-eight, Lagrange and Broucke–Hadjidemetriou–Hénon orbits and Euler’s two-centre problem, and studied the existence proof of the figure-eight orbit and the convergence of Sundman’s series. The work led to a publication; the research log documents it week by week.

Group project: pendulum models for liquid slosh. With Patrick Truong, Gregory Barbanel and Abdullah Fouzuddeen, supported by the Edinburgh Scientific Researchers Association. Poster (PDF)

Teaching and notes

• Introduction to LaTeX: a short slide course and handout for students writing their first documents
• PHYS08050 Introductory Astrophysics notes, shared with the permission of Prof. Catherine Heymans

Guest contributions

These pieces were written by friends and are hosted here with their permission:

• Leo Chow (University of Hong Kong), Beyond a cursory look at the Lorentz factor
• Allison Lau (University of Toronto), CSC336 Numerical Methods notes

Contact

The quickest way to reach me is by email or on LinkedIn. Corrections to any article are always welcome.

About this site

The site is built with Jekyll and the Minimal Mistakes theme; mathematics is typeset with KaTeX. The source is on GitHub.