Searching map area
Y
Y
N
N
Y
Y
N
N
Destinations
Home
Map
Random
Lists
Rate Things
Swipe
Games
Explore
Everything
Film
TV
Music
Books
Games
People
Characters
Places
Food
Life
Ideas
Organizations
Schools
Posts
News
Memes
Flags
Papers
Art
Space
Chemistry
Technology
Events
Emoji
Instruments
Other
Account
Join YYNN
Sign in
Appearance
Light
Dark
Auto
Auto follows your device by default.
Home
Rate
Browse
Join
But there are 7 other non-split extensions! These give nontrivial elements of the cohomology group H²(P, ℤ³).
Thus, the hardest part of classifying all 13 monoclinic space groups is figuring out H²(P, ℤ³) for all 6 choices of P and its action on ℤ³.
(12/n)
en.wikipedia.org/wi...
All Ratings