// Magma code for working with abstract group 25920.ca. // Some of these functions may take a long time to execute (this depends on the group). // Construction of abstract group: G := PermutationGroup< 15 | (7,12)(8,11)(9,10)(13,15), (3,4)(5,6)(7,12,8,9,15,10,14,13), (7,8,9)(10,11,12)(13,14,15), (7,15,12,13)(8,10,11,9), (1,5)(2,6,3,4)(7,13,10)(8,14,11)(9,15,12), (7,12,14)(8,10,15)(9,11,13), (7,9,15,8,12,10,13,11) >; // 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 as a permutation group: PermutationGroup< 15 | (7,12)(8,11)(9,10)(13,15), (3,4)(5,6)(7,12,8,9,15,10,14,13), (7,8,9)(10,11,12)(13,14,15), (7,15,12,13)(8,10,11,9), (1,5)(2,6,3,4)(7,13,10)(8,14,11)(9,15,12), (7,12,14)(8,10,15)(9,11,13), (7,9,15,8,12,10,13,11) >; // 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