Point Group, Symmetry Group, Lattice
random notes
coxeter group
Amazing depth and diversity of math. Some topics, u haven't checked for decades, suddenly popped up. And today with the fairly comprehensive wikipedia, u read them for days. Symmetry, space groups, linear group, reflection group, isometry group, group generators.
![reflection group 2024-02-12](i/reflection_group_2024-02-12.png)
![coxeter group 2024-02-12](i/coxeter_group_2024-02-12.png)
groups
sphere packing
![kelvin problem weaire phelan sphere packing 2024-02-20](i/kelvin_problem_weaire_phelan_sphere_packing_2024-02-20.png)