// Magma code for working with abstract group 972.432. // Some of these functions may take a long time to execute (this depends on the group). // Construction of abstract group: G := SmallGroup(972, 432); // 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, -2, -3, -3, -3, -3, 14, 1388, 828, 58, 675, 682, 108, 2524, 31757, 9084, 6067, 166, 5312]); a,b,c := Explode([GPC.1, GPC.3, GPC.6]); AssignNames(~GPC, ["a", "a2", "b", "b2", "b6", "c", "c3"]); // Define the group as a permutation group: PermutationGroup< 18 | (1,10)(2,12)(3,11)(4,18)(5,17)(6,16)(7,15)(8,14)(9,13), (1,10)(2,11)(3,12)(4,13)(5,14)(6,15)(7,16)(8,17)(9,18), (4,6,5)(7,8,9)(13,15,14)(16,17,18), (1,5,9,2,6,7,3,4,8)(10,17,13,12,16,15,11,18,14), (1,9,6,3,8,5,2,7,4)(10,18,15,12,17,14,11,16,13), (1,2,3)(4,5,6)(7,8,9)(10,12,11)(13,15,14)(16,18,17), (1,3,2)(4,6,5)(7,9,8)(10,12,11)(13,15,14)(16,18,17) >; // Define the group from the transitive group database: TransitiveGroup(18, 233); TransitiveGroup(36, 1493); // 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