Properties

Label 900.31
Modulus $900$
Conductor $900$
Order $30$
Real no
Primitive yes
Minimal yes
Parity odd

Related objects

Learn more

Show commands for: Pari/GP / SageMath
sage: from sage.modular.dirichlet import DirichletCharacter
 
sage: H = DirichletGroup(900, base_ring=CyclotomicField(30))
 
sage: M = H._module
 
sage: chi = DirichletCharacter(H, M([15,10,12]))
 
pari: [g,chi] = znchar(Mod(31,900))
 

Basic properties

Modulus: \(900\)
Conductor: \(900\)
sage: chi.conductor()
 
pari: znconreyconductor(g,chi)
 
Order: \(30\)
sage: chi.multiplicative_order()
 
pari: charorder(g,chi)
 
Real: no
Primitive: yes
sage: chi.is_primitive()
 
pari: #znconreyconductor(g,chi)==1
 
Minimal: yes
Parity: odd
sage: chi.is_odd()
 
pari: zncharisodd(g,chi)
 

Galois orbit 900.bp

\(\chi_{900}(31,\cdot)\) \(\chi_{900}(211,\cdot)\) \(\chi_{900}(331,\cdot)\) \(\chi_{900}(391,\cdot)\) \(\chi_{900}(511,\cdot)\) \(\chi_{900}(571,\cdot)\) \(\chi_{900}(691,\cdot)\) \(\chi_{900}(871,\cdot)\)

sage: chi.galois_orbit()
 
pari: order = charorder(g,chi)
 
pari: [ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
 

Related number fields

Field of values: \(\Q(\zeta_{15})\)
Fixed field: 30.0.46377813183047976688385009765625000000000000000000000000000000.1

Values on generators

\((451,101,577)\) → \((-1,e\left(\frac{1}{3}\right),e\left(\frac{2}{5}\right))\)

Values

\(-1\)\(1\)\(7\)\(11\)\(13\)\(17\)\(19\)\(23\)\(29\)\(31\)\(37\)\(41\)
\(-1\)\(1\)\(e\left(\frac{5}{6}\right)\)\(e\left(\frac{7}{30}\right)\)\(e\left(\frac{4}{15}\right)\)\(e\left(\frac{1}{5}\right)\)\(e\left(\frac{7}{10}\right)\)\(e\left(\frac{17}{30}\right)\)\(e\left(\frac{2}{15}\right)\)\(e\left(\frac{11}{30}\right)\)\(e\left(\frac{3}{5}\right)\)\(e\left(\frac{4}{15}\right)\)
value at e.g. 2

Gauss sum

sage: chi.gauss_sum(a)
 
pari: znchargauss(g,chi,a)
 
\( \tau_{ a }( \chi_{ 900 }(31,·) )\;\) at \(\;a = \) e.g. 2
\(\displaystyle \tau_{2}(\chi_{900}(31,\cdot)) = \sum_{r\in \Z/900\Z} \chi_{900}(31,r) e\left(\frac{r}{450}\right) = 0.0 \)

Jacobi sum

sage: chi.jacobi_sum(n)
 
\( J(\chi_{ 900 }(31,·),\chi_{ 900 }(n,·)) \;\) for \( \; n = \) e.g. 1
\( \displaystyle J(\chi_{900}(31,\cdot),\chi_{900}(1,\cdot)) = \sum_{r\in \Z/900\Z} \chi_{900}(31,r) \chi_{900}(1,1-r) = 0 \)

Kloosterman sum

sage: chi.kloosterman_sum(a,b)
 
\(K(a,b,\chi_{ 900 }(31,·)) \;\) at \(\; a,b = \) e.g. 1,2
\( \displaystyle K(1,2,\chi_{900}(31,·)) = \sum_{r \in \Z/900\Z} \chi_{900}(31,r) e\left(\frac{1 r + 2 r^{-1}}{900}\right) = 8.3550872595+7.5229543589i \)