Normalized defining polynomial
sage: x = polygen(QQ); K.<a> = NumberField(x^12 - 2*x^11 + 3*x^10 + 2*x^9 - 15*x^8 + 26*x^7 - 26*x^6 - 6*x^5 + 93*x^4 - 196*x^3 + 268*x^2 - 220*x + 121)
gp: K = bnfinit(y^12 - 2*y^11 + 3*y^10 + 2*y^9 - 15*y^8 + 26*y^7 - 26*y^6 - 6*y^5 + 93*y^4 - 196*y^3 + 268*y^2 - 220*y + 121, 1)
magma: R<x> := PolynomialRing(Rationals()); K<a> := NumberField(x^12 - 2*x^11 + 3*x^10 + 2*x^9 - 15*x^8 + 26*x^7 - 26*x^6 - 6*x^5 + 93*x^4 - 196*x^3 + 268*x^2 - 220*x + 121);
oscar: Qx, x = PolynomialRing(QQ); K, a = NumberField(x^12 - 2*x^11 + 3*x^10 + 2*x^9 - 15*x^8 + 26*x^7 - 26*x^6 - 6*x^5 + 93*x^4 - 196*x^3 + 268*x^2 - 220*x + 121)
\( x^{12} - 2 x^{11} + 3 x^{10} + 2 x^{9} - 15 x^{8} + 26 x^{7} - 26 x^{6} - 6 x^{5} + 93 x^{4} + \cdots + 121 \)
sage: K.defining_polynomial()
gp: K.pol
magma: DefiningPolynomial(K);
oscar: defining_polynomial(K)
Invariants
| Degree: | $12$ | sage: K.degree()
gp: poldegree(K.pol)
magma: Degree(K);
oscar: degree(K)
| |
| Signature: | $[0, 6]$ | sage: K.signature()
gp: K.sign
magma: Signature(K);
oscar: signature(K)
| |
| Discriminant: |
\(7169347584000000\)
\(\medspace = 2^{18}\cdot 3^{6}\cdot 5^{6}\cdot 7^{4}\)
| sage: K.disc()
gp: K.disc
magma: OK := Integers(K); Discriminant(OK);
oscar: OK = ring_of_integers(K); discriminant(OK)
| |
| Root discriminant: | \(20.96\) | sage: (K.disc().abs())^(1./K.degree())
gp: abs(K.disc)^(1/poldegree(K.pol))
magma: Abs(Discriminant(OK))^(1/Degree(K));
oscar: (1.0 * dK)^(1/degree(K))
| |
| Galois root discriminant: | $2^{3/2}3^{1/2}5^{1/2}7^{2/3}\approx 40.085685643740796$ | ||
| Ramified primes: |
\(2\), \(3\), \(5\), \(7\)
| sage: K.disc().support()
gp: factor(abs(K.disc))[,1]~
magma: PrimeDivisors(Discriminant(OK));
oscar: prime_divisors(discriminant((OK)))
| |
| Discriminant root field: | \(\Q\) | ||
| $\card{ \Aut(K/\Q) }$: | $6$ | sage: K.automorphisms()
magma: Automorphisms(K);
oscar: automorphisms(K)
| |
| This field is not Galois over $\Q$. | |||
| This is not a CM field. | |||
Integral basis (with respect to field generator \(a\))
$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $\frac{1}{7}a^{7}-\frac{3}{7}a^{6}-\frac{2}{7}a^{5}+\frac{1}{7}a^{4}-\frac{2}{7}a^{3}+\frac{2}{7}a^{2}-\frac{2}{7}a-\frac{2}{7}$, $\frac{1}{7}a^{8}+\frac{3}{7}a^{6}+\frac{2}{7}a^{5}+\frac{1}{7}a^{4}+\frac{3}{7}a^{3}-\frac{3}{7}a^{2}-\frac{1}{7}a+\frac{1}{7}$, $\frac{1}{7}a^{9}-\frac{3}{7}a^{6}+\frac{3}{7}a^{3}-\frac{1}{7}$, $\frac{1}{49}a^{10}-\frac{3}{49}a^{9}-\frac{2}{49}a^{8}+\frac{8}{49}a^{6}-\frac{17}{49}a^{5}-\frac{10}{49}a^{4}-\frac{3}{7}a^{3}+\frac{19}{49}a^{2}+\frac{9}{49}a+\frac{16}{49}$, $\frac{1}{296989}a^{11}-\frac{2323}{296989}a^{10}-\frac{372}{42427}a^{9}-\frac{4992}{296989}a^{8}+\frac{15968}{296989}a^{7}+\frac{146777}{296989}a^{6}+\frac{140587}{296989}a^{5}-\frac{20620}{296989}a^{4}-\frac{65214}{296989}a^{3}+\frac{841}{10241}a^{2}-\frac{81715}{296989}a-\frac{3904}{26999}$
sage: K.integral_basis()
gp: K.zk
magma: IntegralBasis(K);
oscar: basis(OK)
| Monogenic: | No | |
| Index: | Not computed | |
| Inessential primes: | $7$ |
Class group and class number
$C_{2}$, which has order $2$
sage: K.class_group().invariants()
gp: K.clgp
magma: ClassGroup(K);
oscar: class_group(K)
Unit group
sage: UK = K.unit_group()
magma: UK, fUK := UnitGroup(K);
oscar: UK, fUK = unit_group(OK)
| Rank: | $5$ | sage: UK.rank()
gp: K.fu
magma: UnitRank(K);
oscar: rank(UK)
| |
| Torsion generator: |
\( \frac{1906}{296989} a^{11} - \frac{444}{42427} a^{10} + \frac{6796}{296989} a^{9} + \frac{7079}{296989} a^{8} - \frac{27578}{296989} a^{7} + \frac{977}{6061} a^{6} - \frac{46476}{296989} a^{5} - \frac{8257}{296989} a^{4} + \frac{182934}{296989} a^{3} - \frac{11579}{10241} a^{2} + \frac{576522}{296989} a - \frac{17952}{26999} \)
(order $6$)
| sage: UK.torsion_generator()
gp: K.tu[2]
magma: K!f(TU.1) where TU,f is TorsionUnitGroup(K);
oscar: torsion_units_generator(OK)
| |
| Fundamental units: |
$\frac{1104}{26999}a^{11}-\frac{34}{3857}a^{10}+\frac{302}{26999}a^{9}+\frac{5444}{26999}a^{8}-\frac{9389}{26999}a^{7}+\frac{139}{3857}a^{6}+\frac{4021}{26999}a^{5}-\frac{25812}{26999}a^{4}+\frac{67932}{26999}a^{3}-\frac{1434}{931}a^{2}+\frac{20053}{26999}a+\frac{56821}{26999}$, $\frac{1266}{296989}a^{11}+\frac{4728}{296989}a^{10}+\frac{520}{296989}a^{9}+\frac{1116}{42427}a^{8}+\frac{20236}{296989}a^{7}-\frac{34822}{296989}a^{6}-\frac{10245}{296989}a^{5}+\frac{2570}{42427}a^{4}-\frac{82836}{296989}a^{3}-\frac{149}{10241}a^{2}-\frac{62652}{296989}a-\frac{314}{3857}$, $\frac{20738}{296989}a^{11}-\frac{56095}{296989}a^{10}+\frac{32063}{296989}a^{9}+\frac{28089}{296989}a^{8}-\frac{422621}{296989}a^{7}+\frac{493923}{296989}a^{6}-\frac{362979}{296989}a^{5}-\frac{226145}{296989}a^{4}+\frac{2328605}{296989}a^{3}-\frac{149409}{10241}a^{2}+\frac{4268386}{296989}a-\frac{371892}{26999}$, $\frac{15861}{296989}a^{11}-\frac{18467}{296989}a^{10}+\frac{446}{6061}a^{9}+\frac{75524}{296989}a^{8}-\frac{232877}{296989}a^{7}+\frac{187788}{296989}a^{6}+\frac{14568}{296989}a^{5}-\frac{578055}{296989}a^{4}+\frac{1283816}{296989}a^{3}-\frac{42960}{10241}a^{2}+\frac{1251191}{296989}a-\frac{16494}{26999}$, $\frac{2529}{296989}a^{11}+\frac{4303}{296989}a^{10}+\frac{2791}{296989}a^{9}+\frac{12417}{296989}a^{8}-\frac{7432}{296989}a^{7}-\frac{12973}{296989}a^{6}-\frac{24042}{296989}a^{5}-\frac{120356}{296989}a^{4}+\frac{326959}{296989}a^{3}-\frac{6374}{10241}a^{2}+\frac{350159}{296989}a+\frac{16683}{26999}$
| sage: UK.fundamental_units()
gp: K.fu
magma: [K|fUK(g): g in Generators(UK)];
oscar: [K(fUK(a)) for a in gens(UK)]
| |
| Regulator: | \( 2796.5955749255118 \) | sage: K.regulator()
gp: K.reg
magma: Regulator(K);
oscar: regulator(K)
|
Class number formula
\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{0}\cdot(2\pi)^{6}\cdot 2796.5955749255118 \cdot 2}{6\cdot\sqrt{7169347584000000}}\cr\approx \mathstrut & 0.677404072696876 \end{aligned}\]
# self-contained SageMath code snippet to compute the analytic class number formula
x = polygen(QQ); K.<a> = NumberField(x^12 - 2*x^11 + 3*x^10 + 2*x^9 - 15*x^8 + 26*x^7 - 26*x^6 - 6*x^5 + 93*x^4 - 196*x^3 + 268*x^2 - 220*x + 121)
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))))
# self-contained Pari/GP code snippet to compute the analytic class number formula
K = bnfinit(x^12 - 2*x^11 + 3*x^10 + 2*x^9 - 15*x^8 + 26*x^7 - 26*x^6 - 6*x^5 + 93*x^4 - 196*x^3 + 268*x^2 - 220*x + 121, 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)))]
/* self-contained Magma code snippet to compute the analytic class number formula */
Qx<x> := PolynomialRing(QQ); K<a> := NumberField(x^12 - 2*x^11 + 3*x^10 + 2*x^9 - 15*x^8 + 26*x^7 - 26*x^6 - 6*x^5 + 93*x^4 - 196*x^3 + 268*x^2 - 220*x + 121);
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)));
# self-contained Oscar code snippet to compute the analytic class number formula
Qx, x = PolynomialRing(QQ); K, a = NumberField(x^12 - 2*x^11 + 3*x^10 + 2*x^9 - 15*x^8 + 26*x^7 - 26*x^6 - 6*x^5 + 93*x^4 - 196*x^3 + 268*x^2 - 220*x + 121);
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):
sage: K.galois_group(type='pari')
gp: polgalois(K.pol)
magma: G = GaloisGroup(K);
oscar: G, Gtx = galois_group(K); G, transitive_group_identification(G)
| 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
| \(\Q(\sqrt{30}) \), \(\Q(\sqrt{-3}) \), \(\Q(\sqrt{-10}) \), \(\Q(\sqrt{-3}, \sqrt{-10})\), 6.0.3136000.1 |
Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.
sage: K.subfields()[1:-1]
gp: L = nfsubfields(K); L[2..length(b)]
magma: L := Subfields(K); L[2..#L];
oscar: subfields(K)[2:end-1]
Sibling fields
| Galois closure: | deg 36 |
| Degree 18 siblings: | 18.6.71418001746108874752000000000.1, deg 18 |
| 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 | R | R | ${\href{/padicField/11.6.0.1}{6} }{,}\,{\href{/padicField/11.2.0.1}{2} }^{3}$ | ${\href{/padicField/13.3.0.1}{3} }^{4}$ | ${\href{/padicField/17.6.0.1}{6} }^{2}$ | ${\href{/padicField/19.3.0.1}{3} }^{2}{,}\,{\href{/padicField/19.1.0.1}{1} }^{6}$ | ${\href{/padicField/23.6.0.1}{6} }{,}\,{\href{/padicField/23.2.0.1}{2} }^{3}$ | ${\href{/padicField/29.2.0.1}{2} }^{6}$ | ${\href{/padicField/31.6.0.1}{6} }^{2}$ | ${\href{/padicField/37.3.0.1}{3} }^{2}{,}\,{\href{/padicField/37.1.0.1}{1} }^{6}$ | ${\href{/padicField/41.6.0.1}{6} }^{2}$ | ${\href{/padicField/43.2.0.1}{2} }^{6}$ | ${\href{/padicField/47.6.0.1}{6} }{,}\,{\href{/padicField/47.2.0.1}{2} }^{3}$ | ${\href{/padicField/53.6.0.1}{6} }{,}\,{\href{/padicField/53.2.0.1}{2} }^{3}$ | ${\href{/padicField/59.6.0.1}{6} }^{2}$ |
In the table, R denotes a ramified prime. Cycle lengths which are repeated in a cycle type are indicated by exponents.
# to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$ for $p=7$ in Sage:
p = 7; [(e, pr.norm().valuation(p)) for pr,e in K.factor(p)]
\\ to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$ for $p=7$ in Pari:
p = 7; pfac = idealprimedec(K, p); vector(length(pfac), j, [pfac[j][3], pfac[j][4]])
// to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$ for $p=7 in Magma:
p := 7; [<pr[2], Valuation(Norm(pr[1]), p)> : pr in Factorization(p*Integers(K))];
# to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$ 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
| $p$ | Label | Polynomial | $e$ | $f$ | $c$ | Galois group | Slope content |
|---|---|---|---|---|---|---|---|
|
\(2\)
| 2.12.18.15 | $x^{12} - 12 x^{11} - 56 x^{9} + 2372 x^{8} + 8992 x^{7} + 115648 x^{6} + 164160 x^{5} + 1305648 x^{4} - 282560 x^{3} + 5591296 x^{2} - 9640320 x + 8497856$ | $2$ | $6$ | $18$ | $C_6\times C_2$ | $[3]^{6}$ |
|
\(3\)
| 3.12.6.2 | $x^{12} + 22 x^{10} + 177 x^{8} + 4 x^{7} + 644 x^{6} - 100 x^{5} + 876 x^{4} - 224 x^{3} + 1076 x^{2} + 344 x + 112$ | $2$ | $6$ | $6$ | $C_6\times C_2$ | $[\ ]_{2}^{6}$ |
|
\(5\)
| 5.12.6.1 | $x^{12} + 120 x^{11} + 6032 x^{10} + 163208 x^{9} + 2529528 x^{8} + 21853448 x^{7} + 92223962 x^{6} + 138649448 x^{5} + 223472880 x^{4} + 401794296 x^{3} + 295909124 x^{2} + 118616440 x + 126881009$ | $2$ | $6$ | $6$ | $C_6\times C_2$ | $[\ ]_{2}^{6}$ |
|
\(7\)
| $\Q_{7}$ | $x + 4$ | $1$ | $1$ | $0$ | Trivial | $[\ ]$ |
| $\Q_{7}$ | $x + 4$ | $1$ | $1$ | $0$ | Trivial | $[\ ]$ | |
| $\Q_{7}$ | $x + 4$ | $1$ | $1$ | $0$ | Trivial | $[\ ]$ | |
| $\Q_{7}$ | $x + 4$ | $1$ | $1$ | $0$ | Trivial | $[\ ]$ | |
| $\Q_{7}$ | $x + 4$ | $1$ | $1$ | $0$ | Trivial | $[\ ]$ | |
| $\Q_{7}$ | $x + 4$ | $1$ | $1$ | $0$ | Trivial | $[\ ]$ | |
| 7.3.2.2 | $x^{3} + 7$ | $3$ | $1$ | $2$ | $C_3$ | $[\ ]_{3}$ | |
| 7.3.2.2 | $x^{3} + 7$ | $3$ | $1$ | $2$ | $C_3$ | $[\ ]_{3}$ |
Artin representations
| Label | Dimension | Conductor | Artin stem field | $G$ | Ind | $\chi(c)$ | |
|---|---|---|---|---|---|---|---|
| * | 1.1.1t1.a.a | $1$ | $1$ | \(\Q\) | $C_1$ | $1$ | $1$ |
| * | 1.120.2t1.a.a | $1$ | $ 2^{3} \cdot 3 \cdot 5 $ | \(\Q(\sqrt{30}) \) | $C_2$ (as 2T1) | $1$ | $1$ |
| * | 1.40.2t1.b.a | $1$ | $ 2^{3} \cdot 5 $ | \(\Q(\sqrt{-10}) \) | $C_2$ (as 2T1) | $1$ | $-1$ |
| * | 1.3.2t1.a.a | $1$ | $ 3 $ | \(\Q(\sqrt{-3}) \) | $C_2$ (as 2T1) | $1$ | $-1$ |
| 1.840.6t1.a.a | $1$ | $ 2^{3} \cdot 3 \cdot 5 \cdot 7 $ | 6.6.4148928000.1 | $C_6$ (as 6T1) | $0$ | $1$ | |
| 1.21.6t1.a.a | $1$ | $ 3 \cdot 7 $ | 6.0.64827.1 | $C_6$ (as 6T1) | $0$ | $-1$ | |
| 1.280.6t1.d.a | $1$ | $ 2^{3} \cdot 5 \cdot 7 $ | 6.0.153664000.1 | $C_6$ (as 6T1) | $0$ | $-1$ | |
| 1.840.6t1.a.b | $1$ | $ 2^{3} \cdot 3 \cdot 5 \cdot 7 $ | 6.6.4148928000.1 | $C_6$ (as 6T1) | $0$ | $1$ | |
| 1.7.3t1.a.a | $1$ | $ 7 $ | \(\Q(\zeta_{7})^+\) | $C_3$ (as 3T1) | $0$ | $1$ | |
| 1.7.3t1.a.b | $1$ | $ 7 $ | \(\Q(\zeta_{7})^+\) | $C_3$ (as 3T1) | $0$ | $1$ | |
| 1.21.6t1.a.b | $1$ | $ 3 \cdot 7 $ | 6.0.64827.1 | $C_6$ (as 6T1) | $0$ | $-1$ | |
| 1.280.6t1.d.b | $1$ | $ 2^{3} \cdot 5 \cdot 7 $ | 6.0.153664000.1 | $C_6$ (as 6T1) | $0$ | $-1$ | |
| 2.1960.3t2.a.a | $2$ | $ 2^{3} \cdot 5 \cdot 7^{2}$ | 3.1.1960.1 | $S_3$ (as 3T2) | $1$ | $0$ | |
| 2.17640.6t3.c.a | $2$ | $ 2^{3} \cdot 3^{2} \cdot 5 \cdot 7^{2}$ | 6.2.4148928000.1 | $D_{6}$ (as 6T3) | $1$ | $0$ | |
| * | 2.2520.12t18.c.a | $2$ | $ 2^{3} \cdot 3^{2} \cdot 5 \cdot 7 $ | 12.0.7169347584000000.2 | $C_6\times S_3$ (as 12T18) | $0$ | $0$ |
| * | 2.280.6t5.a.a | $2$ | $ 2^{3} \cdot 5 \cdot 7 $ | 6.0.3136000.1 | $S_3\times C_3$ (as 6T5) | $0$ | $0$ |
| * | 2.2520.12t18.c.b | $2$ | $ 2^{3} \cdot 3^{2} \cdot 5 \cdot 7 $ | 12.0.7169347584000000.2 | $C_6\times S_3$ (as 12T18) | $0$ | $0$ |
| * | 2.280.6t5.a.b | $2$ | $ 2^{3} \cdot 5 \cdot 7 $ | 6.0.3136000.1 | $S_3\times C_3$ (as 6T5) | $0$ | $0$ |
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 *.