// Magma code for working with abstract group 7776.cw. // Some of these functions may take a long time to execute (this depends on the group). // Construction of abstract group: G := PermutationGroup< 27 | (1,23)(2,19)(3,27)(4,26)(5,22)(6,21)(7,20)(8,25)(9,24)(10,12)(13,15)(16,18), (1,17,24,5,14,25,7,15,22,6,11,26,9,10,19,8,13,27,3,18,21,4,16,20)(2,12,23), (1,9,6,5,7,8,2,3)(10,22,11,19,12,21,14,24)(13,27,15,20,18,25,16,26)(17,23) >; // 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([10, -2, -2, -2, -2, -2, -3, 3, -3, -3, 3, 60921, 51, 59882, 82, 38723, 170014, 77424, 5934, 144, 85455, 28825, 515, 73926, 159056, 76186, 1716, 8026, 184327, 23057, 24527, 11577, 1747, 116658, 136108, 19478, 9768, 691209, 302419, 172829, 64839, 32449]); a,b,c,d,e,f,g := Explode([GPC.1, GPC.2, GPC.5, GPC.7, GPC.8, GPC.9, GPC.10]); AssignNames(~GPC, ["a", "b", "b2", "b4", "c", "c2", "d", "e", "f", "g"]); // Define the group as a permutation group: PermutationGroup< 27 | (1,23)(2,19)(3,27)(4,26)(5,22)(6,21)(7,20)(8,25)(9,24)(10,12)(13,15)(16,18), (1,17,24,5,14,25,7,15,22,6,11,26,9,10,19,8,13,27,3,18,21,4,16,20)(2,12,23), (1,9,6,5,7,8,2,3)(10,22,11,19,12,21,14,24)(13,27,15,20,18,25,16,26)(17,23) >; // Define the group from the transitive group database: TransitiveGroup(27, 723); TransitiveGroup(36, 7343); TransitiveGroup(36, 7367); // 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