// Magma code for working with abstract group 384.16398. // Some of these functions may take a long time to execute (this depends on the group). // Construction of abstract group: G := SmallGroup(384, 16398); // 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([8, -2, -2, -2, -2, -2, -2, -2, -3, 41, 1612, 588, 116, 3853, 1373, 141, 8974, 166, 8207]); a,b,c,d := Explode([GPC.1, GPC.2, GPC.4, GPC.5]); AssignNames(~GPC, ["a", "b", "b2", "c", "d", "d2", "d4", "d8"]); // Define the group as a permutation group: PermutationGroup< 17 | (1,2,3,6)(4,5,8,7)(9,10,11,12)(16,17), (2,5)(4,8)(6,7)(9,11)(10,12), (2,6)(5,7)(9,12,11,10)(13,14)(16,17), (1,3)(2,6)(4,8)(5,7)(9,11)(10,12)(13,14), (1,4,3,8)(2,7,6,5), (1,3)(2,6)(4,8)(5,7)(9,11)(10,12), (1,3)(2,6)(4,8)(5,7), (15,16,17) >; // Define the group as a matrix group with coefficients in GLZN: MatrixGroup< 2, Integers(40) | [[21, 0, 0, 21], [19, 25, 0, 29], [27, 27, 0, 3], [9, 0, 0, 9], [33, 24, 8, 1], [1, 20, 0, 1], [21, 18, 16, 9], [1, 10, 0, 1]] >; // 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