Assertion: abelian group's subgroup | /r/HasProperty | studied
Facets:
value: widely
type: DEGREE
value: because of their importance
type: CAUSE
Source sentences:
text: Subgroups of symmetric groups are called permutation groups and are widely studied because of their importance in understanding group actions, homogeneous spaces, and automorphism groups of graphs, such as the Higman–Sims group and the Higman–Sims graph.