/sci/ - Science & Math

>>11452324
Maybe you have something else in mind when you meant "Galilean", but I took that to mean the Euclidean group, i.e. the group of isometries of Euclidean space.
If you're thinking about 4D then it's [math]O(4)[/math] or [math]SO(4)[/math], depending on if "homogeneous" means "orientation-preserving" to you. Again, for any [math]n[/math] in general we have [math]{\bf E}(n) \cong \mathbb{R}^n \rtimes O(n)[/math]. On a lattice this is called Bieberbach's theorem, not sure if there's a name for it in the continuum but you can just pass to it from Bieberbach's by the embedding homomorphism of the point group [math]\rho: P_n \hookrightarrow O(n)[/math].

>>11321283
Typically for me, if I was unable to make a conference or meeting (which is presumably less sever than your situation), I apologize right at the beginning and at the very end.
>How much detail should I give?
Beyond briefly describing the issue, I'd only provide details about things that are immediately relevant to the professor.