abelian group
C28301
concept
An abelian group is a set equipped with an associative binary operation that has an identity element and inverses for every element, and for which the operation is commutative.
Observed surface forms (3)
- abstract algebraic structure ×2
- Witt group ×1
- trivial group ×1
Instances (7)
- Grothendieck group
-
special orthogonal group SO(n)
via concept surface "trivial group"
surface form: SO(1)
- U(1)
- Harada–Norton group via concept surface "abstract algebraic structure"
- Witt group of quadratic forms via concept surface "Witt group"
- idèle class group
- S5 via concept surface "abstract algebraic structure"