# Gap code for working with abstract group 1285608.a.
# Some of these functions may take a long time to execute (this depends on the group).


# Construction of abstract group: 
G := PSL(2,137);

# Order of the group: 
Order(G);

# Exponent of the group: 
Exponent(G);

# Automorphism group: 
AutomorphismGroup(G);

# The outer automorphism group of G: 
FactorGroup(AutomorphismGroup(G), InnerAutomorphismGroup(G));

# Composition factors of the group: 
CompositionSeries(G);

# Nilpotency class of the group: 
if IsNilpotentGroup(G) then NilpotencyClassOfGroup(G); fi;

# 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 a monomial group: 
IsMonomialGroup(G);

# Determine if the group G is nilpotent: 
IsNilpotentGroup(G);

# Determine if the group G is perfect: 
IsPerfectGroup(G);

# Determine if the group G is a p-group: 
IsPGroup(G);

# Determine if the group G is polycyclic: 
IsPolycyclicGroup(G);

# Determine if the group G is simple: 
IsSimpleGroup(G);

# Determine if the group G is solvable: 
IsSolvableGroup(G);

# Determine if the group G is supersolvable: 
IsSupersolvableGroup(G);

# Compute statistics for the group G: 
# Gap code to output the first two rows of the group statistics table
element_orders := List(Elements(G), g -> Order(g));
orders := Set(element_orders);
Print("Orders: ", orders, "\n");
element_counts := List(orders, n -> Length(Filtered(element_orders, x -> x = n)));
Print("Elements: ", element_counts, " ", Size(G), "\n");
cc_orders := List(ConjugacyClasses(G), cc -> Order(Representative(cc)));
cc_counts := List(orders, n -> Length(Filtered(cc_orders, x -> x = n)));
Print("Conjugacy classes: ", cc_counts, " ", Length(ConjugacyClasses(G)), "\n");

# 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 [[d_1,c_1], [d_2,c_2], ...] where c_i is the number of irr. complex chars. of G with degree d_i
CharacterDegrees(G);

# Define group as Lie representations: 
PSL(2,137);
PSU(2,137);
Omega(3,137);
POmega(3,137);
PSigmaL(2,137);

# Define the group as a permutation group: 
Group( (1,71,2)(3,86,124)(4,7,10)(5,132,24)(6,41,116)(8,36,111)(9,128,20)(11,28,66)(12,81,13)(14,88,84)(15,49,50)(16,125,104)(17,56,129)(18,109,70)(19,133,76)(21,101,126)(22,127,60)(23,96,135)(25,130,92)(26,51,131)(27,136,48)(29,69,100)(30,35,113)(31,89,105)(32,114,78)(33,55,42)(34,61,65)(37,45,98)(38,120,74)(39,117,122)(40,77,57)(43,134,82)(44,85,94)(46,90,80)(47,63,121)(52,83,123)(53,59,79)(54,107,115)(58,67,108)(62,106,72)(64,138,68)(73,93,99)(75,112,95)(87,91,118)(97,119,110)(102,103,137), (3,123,111,7,76,71,85,95,92,77,124,28,14,102,22,16,118,59,66,94,11,34,51,83,44,52,54,117,116,29,50,121,96,41,109,79,72,68,128,86,37,35,81,103,129,26,67,132,43,120,131,105,78,40,19,57,6,80,27,133,136,137,126,33,99,53,110,48)(4,5,8,114,61,135,84,122,101,63,36,10,21,98,9,74,115,12,38,60,106,104,55,13,73,69,62,32,100,45,20,91,112,25,24,87,89,97,58,90,107,130,47,75,82,23,125,119,39,127,113,17,64,49,46,56,70,65,134,30,18,138,93,31,88,42,108,15) );

# The primary decomposition of the group: 
AbelianInvariants(G);

# The abelianization of the group: 
FactorGroup(G, DerivedSubgroup(G));

# The Schur multiplier of the group: 
AbelianInvariantsMultiplier(G);

# The commutator length of the group: 
CommutatorLength(G);

# List of subgroups of the group: 
AllSubgroups(G);

# Center of the group: 
Center(G);

# Commutator subgroup of the group G: 
DerivedSubgroup(G);

# Frattini subgroup of the group G: 
FrattiniSubgroup(G);

# Fitting subgroup of the group G: 
FittingSubgroup(G);

# Radical of the group G: 
SolvableRadical(G);

# Socle of the group G: 
Socle(G);

# Derived series of the group G: 
DerivedSeriesOfGroup(G);

# Chief series of the group G: 
ChiefSeries(G);

# The lower central series of the group G: 
LowerCentralSeriesOfGroup(G);

# The upper central series of the group G: 
UpperCentralSeriesOfGroup(G);

# Character table: 
CharacterTable(G);  # Output not guaranteed to exactly match the LMFDB table