Search and Browse the MSC 2000
20H15
Other geometric groups, including crystallographic groups [See also 51-XX, especially 51F15, and 82D25] → ZMATH
20H20
Other matrix groups over fields → ZMATH
20H25
Other matrix groups over rings → ZMATH
20H30
Other matrix groups over finite fields → ZMATH
20H99
None of the above, but in this section → ZMATH