# Short Musing

Sometimes a post is just a germ of an idea, a fleeting thought that leads to nowhere in particular. These posts are short.

### Poohsticks and differential geometry

Random thought: Poohsticks illustrates well Lie differentiation

### One and two (space-time) dimensional general relativity

Life is boring in low dimensions.

### Where Does The π Go

It is fairly well known that experts in partial differential equations and experts in harmonic analysis prefer to define the Fourier …

### Symmetry and Uniformization

A bit of trivia (can't think of any use of it now) Theorem   Let $(M,g)$ be a two-dimensional compact Riemannian manifold with …