# SageMath code for working with abstract group 52488.fy. # Some of these functions may take a long time to execute (this depends on the group). # Construction of abstract group: G = PermutationGroup(['(1,2,5,4,9,15)(3,7,11,8,13,12)(6,10,16,18,14,17)(19,20,22,21,24,27,25,23,26)(29,30)', '(1,3)(2,6)(5,9)(7,12)(8,14)(11,17)(13,18)(15,16)(19,21,25)(22,26,27)', '(1,4,9,15,18,16)(2,3,8,13,12,5)(6,11,7,10,14,17)(19,22)(20,23)(21,26)(25,27)(28,29,30)']) # Order of the group: G.order() # Exponent of the group: G.exponent() # Automorphism group: libgap(G).AutomorphismGroup() # Composition factors of the group: G.composition_series() # Nilpotency class of the group: libgap(G).NilpotencyClassOfGroup() if G.is_nilpotent() else -1 # Derived length of the group: libgap(G).DerivedLength() # Determine if the group G is abelian: G.is_abelian() # Determine if the group G is cyclic: G.is_cyclic() # Determine if the group G is elementary abelian: G.is_elementary_abelian() # Determine if the group G is nilpotent: G.is_nilpotent() # Determine if the group G is perfect: G.is_perfect() # Determine if the group G is a p-group: G.is_pgroup() # Determine if the group G is polycyclic: G.is_polycyclic() # Determine if the group G is simple: G.is_simple() # Determine if the group G is solvable: G.is_solvable() # Determine if the group G is supersolvable: G.is_supersolvable() # Compute statistics for the group G: # Sage code to output the first two rows of the group statistics table element_orders = [g.order() for g in G] orders = sorted(list(set(element_orders))) print("Orders:", orders) print("Elements:", [element_orders.count(n) for n in orders], G.order()) cc_orders = [cc[0].order() for cc in G.conjugacy_classes()] print("Conjugacy classes:", [cc_orders.count(n) for n in orders], len(cc_orders)) # List of conjugacy classes of the group: G.conjugacy_classes() # Output not guaranteed to exactly match the LMFDB table # Compute statistics about the characters of G: # Outputs [[d_1,c_1], [d_2,c_2], ...] where c_i is the number of irr. complex chars. of G with degree d_i character_degrees = [c[0] for c in G.character_table()] [[n, character_degrees.count(n)] for n in set(character_degrees)] # Define the group with the given generators and relations: # This uses Sage's interface to GAP, as Sage (currently) has no native support for PC groups GPC = gap.new('PcGroupCode(89820552357752929429571624534977933609694056384054106921524076807293583677156794286193263361582629853821322182008975237060054971911018922539705279015647,52488)'); a = GPC.1; b = GPC.3; c = GPC.6; d = GPC.8; e = GPC.9; f = GPC.10; g = GPC.11; # Define the group as a permutation group: PermutationGroup(['(1,2,5,4,9,15)(3,7,11,8,13,12)(6,10,16,18,14,17)(19,20,22,21,24,27,25,23,26)(29,30)', '(1,3)(2,6)(5,9)(7,12)(8,14)(11,17)(13,18)(15,16)(19,21,25)(22,26,27)', '(1,4,9,15,18,16)(2,3,8,13,12,5)(6,11,7,10,14,17)(19,22)(20,23)(21,26)(25,27)(28,29,30)']) # Define the group from the transitive group database: TransitiveGroup(36, 16343) # The abelianization of the group: G.quotient(G.commutator()) # The Schur multiplier of the group: G.homology(2) # List of subgroups of the group: G.subgroups() # Center of the group: G.center() # Commutator subgroup of the group G: G.commutator() # Frattini subgroup of the group G: G.frattini_subgroup() # Fitting subgroup of the group G: G.fitting_subgroup() # Socle of the group G: G.socle() # Derived series of the group G: G.derived_series() # Chief series of the group G: libgap(G).ChiefSeries() # The lower central series of the group G: G.lower_central_series() # The upper central series of the group G: G.upper_central_series() # Character table: G.character_table() # Output not guaranteed to exactly match the LMFDB table