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Properties

Label 1305.151
Modulus $1305$
Conductor $261$
Order $42$
Real no
Primitive no
Minimal yes
Parity even

Related objects

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Show commands: Magma / Pari/GP / SageMath
Copy content comment:Define the Dirichlet character
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(1305, base_ring=CyclotomicField(42)) M = H._module chi = DirichletCharacter(H, M([28,0,9]))
 
Copy content gp:[g,chi] = znchar(Mod(151, 1305))
 
Copy content magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("1305.151");
 

Basic properties

Modulus: \(1305\)
Copy content comment:Modulus
 
Copy content sage:chi.modulus()
 
Copy content gp:g[1][1]
 
Copy content magma:Modulus(chi);
 
Conductor: \(261\)
Copy content comment:Conductor
 
Copy content sage:chi.conductor()
 
Copy content gp:znconreyconductor(g,chi)
 
Copy content magma:Conductor(chi);
 
Order: \(42\)
Copy content comment:Order
 
Copy content sage:chi.multiplicative_order()
 
Copy content gp:charorder(g,chi)
 
Copy content magma:Order(chi);
 
Real: no
Copy content comment:Whether the character is real
 
Copy content sage:chi.multiplicative_order() <= 2
 
Copy content gp:charorder(g,chi) <= 2
 
Copy content magma:Order(chi) le 2;
 
Primitive: no, induced from \(\chi_{261}(151,\cdot)\)
Copy content comment:If the character is primitive
 
Copy content sage:chi.is_primitive()
 
Copy content gp:#znconreyconductor(g,chi)==1
 
Copy content magma:IsPrimitive(chi);
 
Minimal: yes
Parity: even
Copy content comment:Parity
 
Copy content sage:chi.is_odd()
 
Copy content gp:zncharisodd(g,chi)
 
Copy content magma:IsOdd(chi);
 

Galois orbit 1305.cm

\(\chi_{1305}(121,\cdot)\) \(\chi_{1305}(151,\cdot)\) \(\chi_{1305}(196,\cdot)\) \(\chi_{1305}(241,\cdot)\) \(\chi_{1305}(526,\cdot)\) \(\chi_{1305}(556,\cdot)\) \(\chi_{1305}(796,\cdot)\) \(\chi_{1305}(961,\cdot)\) \(\chi_{1305}(1021,\cdot)\) \(\chi_{1305}(1066,\cdot)\) \(\chi_{1305}(1111,\cdot)\) \(\chi_{1305}(1231,\cdot)\)

Copy content comment:Galois orbit
 
Copy content sage:chi.galois_orbit()
 
Copy content gp:order = charorder(g,chi) [ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
 
Copy content magma:order := Order(chi); { chi^k : k in [1..order-1] | GCD(k,order) eq 1 };
 

Related number fields

Field of values: \(\Q(\zeta_{21})\)
Copy content comment:Field of values of chi
 
Copy content sage:CyclotomicField(chi.multiplicative_order())
 
Copy content gp:nfinit(polcyclo(charorder(g,chi)))
 
Copy content magma:CyclotomicField(Order(chi));
 
Fixed field: 42.42.565343212441678035532894502003808167878401992443661947648452445739810658542578516149.1
Copy content comment:Fixed field
 
Copy content sage:chi.fixed_field()
 

Values on generators

\((146,262,901)\) → \((e\left(\frac{2}{3}\right),1,e\left(\frac{3}{14}\right))\)

First values

\(a\) \(-1\)\(1\)\(2\)\(4\)\(7\)\(8\)\(11\)\(13\)\(14\)\(16\)\(17\)\(19\)
\( \chi_{ 1305 }(151, a) \) \(1\)\(1\)\(e\left(\frac{37}{42}\right)\)\(e\left(\frac{16}{21}\right)\)\(e\left(\frac{5}{21}\right)\)\(e\left(\frac{9}{14}\right)\)\(e\left(\frac{1}{42}\right)\)\(e\left(\frac{4}{21}\right)\)\(e\left(\frac{5}{42}\right)\)\(e\left(\frac{11}{21}\right)\)\(-1\)\(e\left(\frac{13}{14}\right)\)
Copy content comment:Value of chi at x
 
Copy content sage:chi(x) # x integer
 
Copy content gp:chareval(g,chi,x) \\ x integer, value in Q/Z
 
Copy content magma:chi(x)
 
\( \chi_{ 1305 }(151,a) \;\) at \(\;a = \) e.g. 2