About this site
The companion to Classical and Quantum Integrable Systems — from liouville's theorem to the bethe ansatz.
What is here
24 lectures with 54 definitions, 170 numbered results, 138 proofs, 24 worked examples and 163 figures, and 144 problems on 21 exercise sheets so far. Everything is generated from the same LaTeX source as the printed notes: a theorem here is the same object, with the same number, as the theorem in the PDF, and every number on the site is checked against the typeset volume before the site is built.
The course is Lecture 0 and twenty lectures in two parts, classical and quantum, followed by three optional lectures. No lecture of the two parts depends on an optional one.
How much is proved
The notes are honest about rigour. A result with no tag is proved in full. A result tagged sketched is given with its central idea; one tagged cited is used, and its proof lives in the references. Material marked Reading is studied on your own, and Tutorial material is worked in the tutorial; everything else is the core that is taught in the lecture.
Questions and solutions
An exercise is a question, and a solution is the full worked method. This site is always the questions-only edition: worked solutions are done in the tutorial, which is where the learning in them actually happens.
They are not merely hidden here. Every solution is deleted from the source text before it reaches the converter, the public sheet PDFs are recompiled as the questions-only variant rather than copied from the repository, and the finished site and every PDF in it are searched for solution material before anything can be published.
Your privacy
There is no account, no login, and nothing is sent anywhere. Your theme choice is remembered in your own browser and nothing else is stored.
Found a mistake?
Please report it. Corrections during a course's first run are genuinely valuable — bring it to a lecture or tutorial and it will be fixed at source and republished.
Colophon
Built as a static site from LaTeX. Pandoc preserves the notes' own definition, theorem, example and remark structure; the printed numbering and every cross-reference are recovered from the source and checked against the typeset volume; KaTeX renders the mathematics at build time with the course's own notation macros, translated automatically from the style file the PDFs load; the diagrams are the same TikZ drawings as in the PDF and the data figures the same generated plots, converted to SVG. The notes are set in Charter, the face the printed notes use. No tracking, no cookies, no third-party requests.