// Magma code for working with abstract group 648.136. // Some of these functions may take a long time to execute (this depends on the group). // Construction of abstract group: G := SmallGroup(648, 136); // Order of the group: Order(G); // Exponent of the group: Exponent(G); // Automorphism group: AutomorphismGroup(G); // Composition factors of the group: CompositionFactors(G); // Nilpotency class of the group: NilpotencyClass(G); // Derived length of the group: DerivedLength(G); // Determine if the group G is abelian: IsAbelian(G); // Determine if the group G is cyclic: IsCyclic(G); // Determine if the group G is elementary abelian: IsElementaryAbelian(G); // Determine if the group G is nilpotent: IsNilpotent(G); // Determine if the group G is perfect: IsPerfect(G); // Determine if the group G is simple: IsSimple(G); // Determine if the group G is solvable: IsSolvable(G); // Compute statistics for the group G: // Magma code to output the first two rows of the group statistics table element_orders := [Order(g) : g in G]; orders := Set(element_orders); printf "Orders: %o\n", orders; printf "Elements: %o %o\n", [#[x : x in element_orders | x eq n] : n in orders], Order(G); cc_orders := [cc[1] : cc in ConjugacyClasses(G)]; printf "Conjugacy classes: %o %o\n", [#[x : x in cc_orders | x eq n] : n in orders], #cc_orders; // List of conjugacy classes of the group: ConjugacyClasses(G); // Output not guaranteed to exactly match the LMFDB table // Compute statistics about the characters of G: // Outputs [, , ...] where c_i is the number of irr. complex chars. of G with degree d_i CharacterDegrees(G); // Define the group with the given generators and relations: GPC := PCGroup([7, 2, 3, 3, 3, 2, 2, 3, 14, 5546, 2529, 79, 1011, 10084, 1271, 102, 24197, 3036, 124, 22056, 5746]); a,b,c := Explode([GPC.1, GPC.3, GPC.5]); AssignNames(~GPC, ["a", "a2", "b", "b3", "c", "c2", "c4"]); // Define the group as a permutation group: PermutationGroup< 31 | (3,9)(4,13)(6,16)(7,8)(10,18)(11,21)(12,23)(14,24)(15,20)(17,26)(19,22)(25,27)(28,29)(30,31), (28,30,29,31), (1,2,5)(3,10,14)(4,8,15)(6,17,12)(7,20,13)(9,18,24)(11,22,25)(16,26,23)(19,27,21), (28,29)(30,31), (1,3,11,4,12,23,13,21,9)(2,6,18,8,19,22,7,10,16)(5,14,25,15,17,26,20,27,24), (2,7,8)(5,15,20)(6,10,19)(14,17,27)(16,22,18)(24,25,26), (1,4,13)(2,8,7)(3,12,21)(5,15,20)(6,19,10)(9,11,23)(14,17,27)(16,18,22)(24,25,26) >; // The primary decomposition of the group: PrimaryInvariants(G); // The abelianization of the group: quo< G | CommutatorSubgroup(G) >; // List of subgroups of the group: Subgroups(G); // Center of the group: Center(G); // Commutator subgroup of the group G: CommutatorSubgroup(G); // Frattini subgroup of the group G: FrattiniSubgroup(G); // Fitting subgroup of the group G: FittingSubgroup(G); // Radical of the group G: Radical(G); // Socle of the group G: Socle(G); // Derived series of the group G: DerivedSeries(G); // Chief series of the group G: ChiefSeries(G); // The lower central series of the group G: LowerCentralSeries(G); // The upper central series of the group G: UpperCentralSeries(G); // Character table: CharacterTable(G); // Output not guaranteed to exactly match the LMFDB table