512 Algebra
512.2 Groups and group theory
512.21 Permutation groups 512.22 Representations of groups 512.23 Finite groups 512.25 Abelian groups (Commutative groups) 512.27 Semigroups 512.28 Groupoids
Dewey Decimal Classification
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License by OCLC Online Computer Library Center, Inc. Permissions beyond the scope of this license may be available at here. All copyright rights in the Dewey Decimal Classification system are owned by OCLC. Dewey, Dewey Decimal Classification, DDC, OCLC and WebDewey are registered trademarks of OCLC.