Properties

Label 12.0.24904730935296.4
Degree $12$
Signature $(0, 6)$
Discriminant $2.490\times 10^{13}$
Root discriminant \(13.07\)
Ramified primes $2,3,19$
Class number $1$
Class group trivial
Galois group $C_6\times S_3$ (as 12T18)

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Normalized defining polynomial

Copy content comment:Define the number field
 
Copy content sage:x = polygen(QQ); K.<a> = NumberField(x^12 - 10*x^10 + 32*x^8 - 24*x^6 - 48*x^4 + 64*x^2 + 64)
 
Copy content gp:K = bnfinit(y^12 - 10*y^10 + 32*y^8 - 24*y^6 - 48*y^4 + 64*y^2 + 64, 1)
 
Copy content magma:R<x> := PolynomialRing(Rationals()); K<a> := NumberField(x^12 - 10*x^10 + 32*x^8 - 24*x^6 - 48*x^4 + 64*x^2 + 64);
 
Copy content oscar:Qx, x = polynomial_ring(QQ); K, a = number_field(x^12 - 10*x^10 + 32*x^8 - 24*x^6 - 48*x^4 + 64*x^2 + 64)
 

\( x^{12} - 10x^{10} + 32x^{8} - 24x^{6} - 48x^{4} + 64x^{2} + 64 \) Copy content Toggle raw display

Copy content comment:Defining polynomial
 
Copy content sage:K.defining_polynomial()
 
Copy content gp:K.pol
 
Copy content magma:DefiningPolynomial(K);
 
Copy content oscar:defining_polynomial(K)
 

Invariants

Degree:  $12$
Copy content comment:Degree over Q
 
Copy content sage:K.degree()
 
Copy content gp:poldegree(K.pol)
 
Copy content magma:Degree(K);
 
Copy content oscar:degree(K)
 
Signature:  $(0, 6)$
Copy content comment:Signature
 
Copy content sage:K.signature()
 
Copy content gp:K.sign
 
Copy content magma:Signature(K);
 
Copy content oscar:signature(K)
 
Discriminant:   \(24904730935296\) \(\medspace = 2^{18}\cdot 3^{6}\cdot 19^{4}\) Copy content Toggle raw display
Copy content comment:Discriminant
 
Copy content sage:K.disc()
 
Copy content gp:K.disc
 
Copy content magma:OK := Integers(K); Discriminant(OK);
 
Copy content oscar:OK = ring_of_integers(K); discriminant(OK)
 
Root discriminant:  \(13.07\)
Copy content comment:Root discriminant
 
Copy content sage:(K.disc().abs())^(1./K.degree())
 
Copy content gp:abs(K.disc)^(1/poldegree(K.pol))
 
Copy content magma:Abs(Discriminant(OK))^(1/Degree(K));
 
Copy content oscar:OK = ring_of_integers(K); (1.0 * abs(discriminant(OK)))^(1/degree(K))
 
Galois root discriminant:  $2^{3/2}3^{1/2}19^{2/3}\approx 34.88253362095716$
Ramified primes:   \(2\), \(3\), \(19\) Copy content Toggle raw display
Copy content comment:Ramified primes
 
Copy content sage:K.disc().support()
 
Copy content gp:factor(abs(K.disc))[,1]~
 
Copy content magma:PrimeDivisors(Discriminant(OK));
 
Copy content oscar:prime_divisors(discriminant(OK))
 
Discriminant root field:  \(\Q\)
$\Aut(K/\Q)$:   $C_6$
Copy content comment:Autmorphisms
 
Copy content sage:K.automorphisms()
 
Copy content magma:Automorphisms(K);
 
Copy content oscar:automorphism_group(K)
 
This field is not Galois over $\Q$.
This is not a CM field.
Maximal CM subfield:  \(\Q(\sqrt{2}, \sqrt{-3})\)

Integral basis (with respect to field generator \(a\))

$1$, $a$, $\frac{1}{2}a^{2}$, $\frac{1}{2}a^{3}$, $\frac{1}{4}a^{4}$, $\frac{1}{4}a^{5}$, $\frac{1}{8}a^{6}$, $\frac{1}{8}a^{7}$, $\frac{1}{16}a^{8}$, $\frac{1}{16}a^{9}$, $\frac{1}{32}a^{10}$, $\frac{1}{32}a^{11}$ Copy content Toggle raw display

Copy content comment:Integral basis
 
Copy content sage:K.integral_basis()
 
Copy content gp:K.zk
 
Copy content magma:IntegralBasis(K);
 
Copy content oscar:basis(OK)
 

Monogenic:  Not computed
Index:  $1$
Inessential primes:  None

Class group and class number

Ideal class group:  Trivial group, which has order $1$
Copy content comment:Class group
 
Copy content sage:K.class_group().invariants()
 
Copy content gp:K.clgp
 
Copy content magma:ClassGroup(K);
 
Copy content oscar:class_group(K)
 
Narrow class group:  Trivial group, which has order $1$
Copy content comment:Narrow class group
 
Copy content sage:K.narrow_class_group().invariants()
 
Copy content gp:bnfnarrow(K)
 
Copy content magma:NarrowClassGroup(K);
 

Unit group

Copy content comment:Unit group
 
Copy content sage:UK = K.unit_group()
 
Copy content magma:UK, fUK := UnitGroup(K);
 
Copy content oscar:UK, fUK = unit_group(OK)
 
Rank:  $5$
Copy content comment:Unit rank
 
Copy content sage:UK.rank()
 
Copy content gp:K.fu
 
Copy content magma:UnitRank(K);
 
Copy content oscar:rank(UK)
 
Torsion generator:   \( \frac{1}{16} a^{8} - \frac{1}{2} a^{6} + \frac{5}{4} a^{4} - \frac{1}{2} a^{2} - 1 \)  (order $6$) Copy content Toggle raw display
Copy content comment:Generator for roots of unity
 
Copy content sage:UK.torsion_generator()
 
Copy content gp:K.tu[2]
 
Copy content magma:K!f(TU.1) where TU,f is TorsionUnitGroup(K);
 
Copy content oscar:torsion_units_generator(OK)
 
Fundamental units:   $\frac{1}{32}a^{10}-\frac{1}{4}a^{8}+\frac{5}{8}a^{6}-\frac{1}{2}a^{4}$, $\frac{1}{32}a^{10}-\frac{5}{16}a^{8}+a^{6}-a^{4}-\frac{1}{2}a^{2}+2$, $\frac{1}{16}a^{8}-\frac{1}{8}a^{7}-\frac{1}{2}a^{6}+\frac{3}{4}a^{5}+\frac{5}{4}a^{4}-a^{3}-\frac{1}{2}a^{2}-2$, $\frac{1}{2}a^{2}-a$, $\frac{1}{32}a^{11}-\frac{5}{16}a^{9}+a^{7}+\frac{1}{8}a^{6}-a^{5}-\frac{3}{4}a^{4}+\frac{1}{2}a^{2}+2$ Copy content Toggle raw display
Copy content comment:Fundamental units
 
Copy content sage:UK.fundamental_units()
 
Copy content gp:K.fu
 
Copy content magma:[K|fUK(g): g in Generators(UK)];
 
Copy content oscar:[K(fUK(a)) for a in gens(UK)]
 
Regulator:  \( 74.34391887043572 \)
Copy content comment:Regulator
 
Copy content sage:K.regulator()
 
Copy content gp:K.reg
 
Copy content magma:Regulator(K);
 
Copy content oscar:regulator(K)
 

Class number formula

\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{0}\cdot(2\pi)^{6}\cdot 74.34391887043572 \cdot 1}{6\cdot\sqrt{24904730935296}}\cr\approx \mathstrut & 0.152768031638102 \end{aligned}\]

Copy content comment:Analytic class number formula
 
Copy content sage:# self-contained SageMath code snippet to compute the analytic class number formula x = polygen(QQ); K.<a> = NumberField(x^12 - 10*x^10 + 32*x^8 - 24*x^6 - 48*x^4 + 64*x^2 + 64) DK = K.disc(); r1,r2 = K.signature(); RK = K.regulator(); RR = RK.parent() hK = K.class_number(); wK = K.unit_group().torsion_generator().order(); 2^r1 * (2*RR(pi))^r2 * RK * hK / (wK * RR(sqrt(abs(DK))))
 
Copy content gp:\\ self-contained Pari/GP code snippet to compute the analytic class number formula K = bnfinit(x^12 - 10*x^10 + 32*x^8 - 24*x^6 - 48*x^4 + 64*x^2 + 64, 1); [polcoeff (lfunrootres (lfuncreate (K))[1][1][2], -1), 2^K.r1 * (2*Pi)^K.r2 * K.reg * K.no / (K.tu[1] * sqrt (abs (K.disc)))]
 
Copy content magma:/* self-contained Magma code snippet to compute the analytic class number formula */ Qx<x> := PolynomialRing(Rationals()); K<a> := NumberField(x^12 - 10*x^10 + 32*x^8 - 24*x^6 - 48*x^4 + 64*x^2 + 64); OK := Integers(K); DK := Discriminant(OK); UK, fUK := UnitGroup(OK); clK, fclK := ClassGroup(OK); r1,r2 := Signature(K); RK := Regulator(K); RR := Parent(RK); hK := #clK; wK := #TorsionSubgroup(UK); 2^r1 * (2*Pi(RR))^r2 * RK * hK / (wK * Sqrt(RR!Abs(DK)));
 
Copy content oscar:# self-contained Oscar code snippet to compute the analytic class number formula Qx, x = polynomial_ring(QQ); K, a = number_field(x^12 - 10*x^10 + 32*x^8 - 24*x^6 - 48*x^4 + 64*x^2 + 64); OK = ring_of_integers(K); DK = discriminant(OK); UK, fUK = unit_group(OK); clK, fclK = class_group(OK); r1,r2 = signature(K); RK = regulator(K); RR = parent(RK); hK = order(clK); wK = torsion_units_order(K); 2^r1 * (2*pi)^r2 * RK * hK / (wK * sqrt(RR(abs(DK))))
 

Galois group

$C_6\times S_3$ (as 12T18):

Copy content comment:Galois group
 
Copy content sage:K.galois_group()
 
Copy content gp:polgalois(K.pol)
 
Copy content magma:G = GaloisGroup(K);
 
Copy content oscar:G, Gtx = galois_group(K); degree(K) > 1 ? (G, transitive_group_identification(G)) : (G, nothing)
 
A solvable group of order 36
The 18 conjugacy class representatives for $C_6\times S_3$
Character table for $C_6\times S_3$

Intermediate fields

\(\Q(\sqrt{-6}) \), \(\Q(\sqrt{2}) \), \(\Q(\sqrt{-3}) \), \(\Q(\sqrt{2}, \sqrt{-3})\), 6.0.9747.1

Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.

Copy content comment:Intermediate fields
 
Copy content sage:K.subfields()[1:-1]
 
Copy content gp:L = nfsubfields(K); L[2..length(L)]
 
Copy content magma:L := Subfields(K); L[2..#L];
 
Copy content oscar:subfields(K)[2:end-1]
 

Sibling fields

Galois closure: deg 36
Degree 18 siblings: 18.6.216561186743676164093509632.1, 18.0.5847152042079256430524760064.1
Minimal sibling: This field is its own minimal sibling

Frobenius cycle types

$p$ $2$ $3$ $5$ $7$ $11$ $13$ $17$ $19$ $23$ $29$ $31$ $37$ $41$ $43$ $47$ $53$ $59$
Cycle type R R ${\href{/padicField/5.6.0.1}{6} }^{2}$ ${\href{/padicField/7.3.0.1}{3} }^{4}$ ${\href{/padicField/11.2.0.1}{2} }^{6}$ ${\href{/padicField/13.6.0.1}{6} }{,}\,{\href{/padicField/13.2.0.1}{2} }^{3}$ ${\href{/padicField/17.6.0.1}{6} }^{2}$ R ${\href{/padicField/23.6.0.1}{6} }^{2}$ ${\href{/padicField/29.6.0.1}{6} }^{2}$ ${\href{/padicField/31.3.0.1}{3} }^{4}$ ${\href{/padicField/37.6.0.1}{6} }^{2}$ ${\href{/padicField/41.6.0.1}{6} }^{2}$ ${\href{/padicField/43.6.0.1}{6} }{,}\,{\href{/padicField/43.2.0.1}{2} }^{3}$ ${\href{/padicField/47.6.0.1}{6} }^{2}$ ${\href{/padicField/53.6.0.1}{6} }^{2}$ ${\href{/padicField/59.6.0.1}{6} }^{2}$

In the table, R denotes a ramified prime. Cycle lengths which are repeated in a cycle type are indicated by exponents.

Copy content comment:Frobenius cycle types
 
Copy content sage:# to obtain a list of [e_i,f_i] for the factorization of the ideal pO_K for p=7 in Sage: p = 7; [(e, pr.norm().valuation(p)) for pr,e in K.factor(p)]
 
Copy content gp:\\ to obtain a list of [e_i,f_i] for the factorization of the ideal pO_K for p=7 in Pari: p = 7; pfac = idealprimedec(K, p); vector(length(pfac), j, [pfac[j][3], pfac[j][4]])
 
Copy content magma:// to obtain a list of [e_i,f_i] for the factorization of the ideal pO_K for p=7 in Magma: p := 7; [<pr[2], Valuation(Norm(pr[1]), p)> : pr in Factorization(p*Integers(K))];
 
Copy content oscar:# to obtain a list of [e_i,f_i] for the factorization of the ideal pO_K for p=7 in Oscar: p = 7; pfac = factor(ideal(ring_of_integers(K), p)); [(e, valuation(norm(pr),p)) for (pr,e) in pfac]
 

Local algebras for ramified primes

$p$LabelPolynomial $e$ $f$ $c$ Galois group Slope content
\(2\) Copy content Toggle raw display 2.6.2.18a1.17$x^{12} + 2 x^{10} + 2 x^{9} + x^{8} + 4 x^{7} + 7 x^{6} + 2 x^{5} + 8 x^{4} + 6 x^{3} + x^{2} + 6 x + 7$$2$$6$$18$$C_6\times C_2$$$[3]^{6}$$
\(3\) Copy content Toggle raw display 3.6.2.6a1.2$x^{12} + 4 x^{10} + 6 x^{8} + 4 x^{7} + 8 x^{6} + 8 x^{5} + 9 x^{4} + 4 x^{3} + 8 x^{2} + 8 x + 7$$2$$6$$6$$C_6\times C_2$$$[\ ]_{2}^{6}$$
\(19\) Copy content Toggle raw display 19.2.1.0a1.1$x^{2} + 18 x + 2$$1$$2$$0$$C_2$$$[\ ]^{2}$$
19.2.1.0a1.1$x^{2} + 18 x + 2$$1$$2$$0$$C_2$$$[\ ]^{2}$$
19.2.1.0a1.1$x^{2} + 18 x + 2$$1$$2$$0$$C_2$$$[\ ]^{2}$$
19.2.3.4a1.2$x^{6} + 54 x^{5} + 978 x^{4} + 6048 x^{3} + 1956 x^{2} + 216 x + 27$$3$$2$$4$$C_6$$$[\ ]_{3}^{2}$$

Artin representations

Label Dimension Conductor Artin stem field $G$ Ind $\chi(c)$
*36 1.1.1t1.a.a$1$ $1$ \(\Q\) $C_1$ $1$ $1$
*36 1.24.2t1.b.a$1$ $ 2^{3} \cdot 3 $ \(\Q(\sqrt{-6}) \) $C_2$ (as 2T1) $1$ $-1$
*36 1.3.2t1.a.a$1$ $ 3 $ \(\Q(\sqrt{-3}) \) $C_2$ (as 2T1) $1$ $-1$
*36 1.8.2t1.a.a$1$ $ 2^{3}$ \(\Q(\sqrt{2}) \) $C_2$ (as 2T1) $1$ $1$
1.57.6t1.a.a$1$ $ 3 \cdot 19 $ 6.0.3518667.1 $C_6$ (as 6T1) $0$ $-1$
1.152.6t1.b.a$1$ $ 2^{3} \cdot 19 $ 6.6.66724352.1 $C_6$ (as 6T1) $0$ $1$
1.19.3t1.a.a$1$ $ 19 $ 3.3.361.1 $C_3$ (as 3T1) $0$ $1$
1.19.3t1.a.b$1$ $ 19 $ 3.3.361.1 $C_3$ (as 3T1) $0$ $1$
1.456.6t1.c.a$1$ $ 2^{3} \cdot 3 \cdot 19 $ 6.0.1801557504.1 $C_6$ (as 6T1) $0$ $-1$
1.57.6t1.a.b$1$ $ 3 \cdot 19 $ 6.0.3518667.1 $C_6$ (as 6T1) $0$ $-1$
1.456.6t1.c.b$1$ $ 2^{3} \cdot 3 \cdot 19 $ 6.0.1801557504.1 $C_6$ (as 6T1) $0$ $-1$
1.152.6t1.b.b$1$ $ 2^{3} \cdot 19 $ 6.6.66724352.1 $C_6$ (as 6T1) $0$ $1$
2.1083.3t2.b.a$2$ $ 3 \cdot 19^{2}$ 3.1.1083.1 $S_3$ (as 3T2) $1$ $0$
2.69312.6t3.f.a$2$ $ 2^{6} \cdot 3 \cdot 19^{2}$ 6.0.1801557504.3 $D_{6}$ (as 6T3) $1$ $0$
*36 2.57.6t5.a.a$2$ $ 3 \cdot 19 $ 6.0.9747.1 $S_3\times C_3$ (as 6T5) $0$ $0$
*36 2.3648.12t18.b.a$2$ $ 2^{6} \cdot 3 \cdot 19 $ 12.0.24904730935296.4 $C_6\times S_3$ (as 12T18) $0$ $0$
*36 2.57.6t5.a.b$2$ $ 3 \cdot 19 $ 6.0.9747.1 $S_3\times C_3$ (as 6T5) $0$ $0$
*36 2.3648.12t18.b.b$2$ $ 2^{6} \cdot 3 \cdot 19 $ 12.0.24904730935296.4 $C_6\times S_3$ (as 12T18) $0$ $0$

Data is given for all irreducible representations of the Galois group for the Galois closure of this field. Those marked with * are summands in the permutation representation coming from this field. Representations which appear with multiplicity greater than one are indicated by exponents on the *.

Spectrum of ring of integers

(0)(0)(2)(3)(5)(7)(11)(13)(17)(19)(23)(29)(31)(37)(41)(43)(47)(53)(59)