Sphere Packings, Lattices and Groups

some conventions

• $q=e^{\pi i z}$

chapter 2

• section 2.4 Integral lattices

chapter 7

• type I = self-dual, $\operatorname{wt}(C)\equiv 0 \mod 2$ and there exists $C\in \mathcal{C}$ such that $\operatorname{wt}(C)\equiv 2 \mod 4$
• type II = even, self-dual

type I codes

• 틀:수학노트

computational resource

• https://docs.google.com/file/d/0B8XXo8Tve1cxUDdSZ0NaS2hRTXM/edit