// Magma code for working with abstract group 486.256. // Some of these functions may take a long time to execute (this depends on the group). // Construction of abstract group: G := SmallGroup(486, 256); // 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([6, -3, -3, -3, -2, -3, -3, 69, 455]); a,b,c,d,e := Explode([GPC.1, GPC.2, GPC.3, GPC.4, GPC.6]); AssignNames(~GPC, ["a", "b", "c", "d", "d2", "e"]); // Define the group as a permutation group: PermutationGroup< 15 | (10,11)(12,14)(13,15), (1,2,3)(7,8,9)(10,12,13)(11,14,15), (4,5,6)(10,13,12)(11,15,14), (1,3,2)(4,6,5)(7,9,8)(10,13,12)(11,15,14), (1,2,3)(4,5,6)(7,9,8), (10,12,13)(11,15,14) >; // Define the group as a matrix group with coefficients in GLZN: MatrixGroup< 2, Integers(18) | [[7, 0, 0, 1], [7, 0, 0, 7], [7, 15, 3, 16], [1, 6, 0, 1], [13, 12, 6, 7], [1, 9, 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