A few things I learnt from Jürgen Moser

A Few Things I Learnt from Jürgen Moser

A few remarks on integrable dynamical systems inspired by discussions with Jürgen Moser and by his work.

Spin Calogero - Moser systems associated with simple Lie algebras ( In memory of Jürgen Moser ) Luen - Chau

We introduce spin Calogero-Moser systems associated with root systems of simple Lie algebras and give the associated Lax representations (with spectral parameter) and fundamental Poisson bracket relations. Our analysis is based on a group-theoretic framework similar in spirit to the standard classical r-matrix theory for constant r-matrices. Systèmes de Calogero Moser à spins associés aux algèb...

Two or Three Things I Have Learnt about Repositories

What I learnt from Mom.

for her heart failure. Somehow, when she got to her long term care facility, despite correct transfer orders and an intrusive doctor for a son, her meds got confused and she received too little medicine, resulting in reaccumulation of fluid and readmission to hospital. The lesson? Not that individuals were at fault, but that systems failed to protect her. None of this is to say that she did not...

Getting a Few Things Right and Many Things Wrong