误传
发表于 2025-3-28 16:43:55
http://reply.papertrans.cn/39/3890/388999/388999_41.png
Foam-Cells
发表于 2025-3-28 22:43:43
http://reply.papertrans.cn/39/3890/388999/388999_42.png
音乐等
发表于 2025-3-29 01:36:05
http://reply.papertrans.cn/39/3890/388999/388999_43.png
Paraplegia
发表于 2025-3-29 06:26:00
Numbers,Perhaps the quickest way to get used to the group axioms is to look at some groups of numbers. The list below serves to give examples and to establish some notation.
Instrumental
发表于 2025-3-29 09:23:03
Dihedral Groups,Think back to the flat hexagonal plate mentioned earlier. Its twelve rotational symmetries combine in the natural way to form a group. For each positive integer . greater than or equal to three we can manufacture a plate which has . equal sides. In this way we produce a family of symmetry groups which are not commutative, the so-called ..
CHIP
发表于 2025-3-29 15:22:14
http://reply.papertrans.cn/39/3890/388999/388999_46.png
骑师
发表于 2025-3-29 19:09:59
http://reply.papertrans.cn/39/3890/388999/388999_47.png
SOW
发表于 2025-3-29 21:47:08
http://reply.papertrans.cn/39/3890/388999/388999_48.png
coddle
发表于 2025-3-30 02:04:25
http://reply.papertrans.cn/39/3890/388999/388999_49.png
敬礼
发表于 2025-3-30 07:16:32
Actions, Orbits, and Stabilizers,A good definition should be precise, economical, and capture a simple intuitive idea. If in addition it is easy to work with, so much the better. We begin this chapter with a definition having all these qualities.