// Magma code for working with abstract group 2916.md. // Some of these functions may take a long time to execute (this depends on the group). // Construction of abstract group: G := PermutationGroup< 30 | (2,5)(3,9)(4,11,21,23,10,22)(6,12)(7,13)(8,17,16,25,15,26)(14,20,24,27,18,19)(28,29,30), (2,6,7)(4,8,18)(5,12,13)(10,15,24)(11,17,19)(14,21,16)(20,23,25)(22,26,27), (1,3,9)(2,6,7)(4,10,21)(5,13,12)(8,15,16)(11,23,22)(14,18,24)(17,25,26)(19,20,27), (2,7)(3,9)(4,11,21,23,10,22)(5,13)(8,19,16,20,15,27)(14,25,24,26,18,17)(28,30,29), (1,2,5)(3,6,13)(4,8,14)(7,12,9)(10,15,18)(11,20,17)(16,24,21)(19,26,22)(23,27,25), (4,10,21)(8,15,16)(11,22,23)(14,18,24)(17,26,25)(19,27,20)(28,29,30), (1,4,11,9,21,22,3,10,23)(2,8,20,7,16,19,6,15,27)(5,14,17,12,24,26,13,18,25)(28,30,29), (28,30,29) >; // 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, -3, -2, -3, -3, -3, 3, -3, 16, 14546, 11746, 66, 72195, 51845, 17301, 8237, 36294, 36302, 7078, 2046, 222, 124423, 20759]); a,b,c,d,e := Explode([GPC.1, GPC.3, GPC.5, GPC.6, GPC.7]); AssignNames(~GPC, ["a", "a2", "b", "b2", "c", "d", "e", "e3"]); // Define the group as a permutation group: PermutationGroup< 30 | (2,5)(3,9)(4,11,21,23,10,22)(6,12)(7,13)(8,17,16,25,15,26)(14,20,24,27,18,19)(28,29,30), (2,6,7)(4,8,18)(5,12,13)(10,15,24)(11,17,19)(14,21,16)(20,23,25)(22,26,27), (1,3,9)(2,6,7)(4,10,21)(5,13,12)(8,15,16)(11,23,22)(14,18,24)(17,25,26)(19,20,27), (2,7)(3,9)(4,11,21,23,10,22)(5,13)(8,19,16,20,15,27)(14,25,24,26,18,17)(28,30,29), (1,2,5)(3,6,13)(4,8,14)(7,12,9)(10,15,18)(11,20,17)(16,24,21)(19,26,22)(23,27,25), (4,10,21)(8,15,16)(11,22,23)(14,18,24)(17,26,25)(19,27,20)(28,29,30), (1,4,11,9,21,22,3,10,23)(2,8,20,7,16,19,6,15,27)(5,14,17,12,24,26,13,18,25)(28,30,29), (28,30,29) >; // 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