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Properties

Label 10.2.2713688232425497.1
Degree $10$
Signature $(2, 4)$
Discriminant $2.714\times 10^{15}$
Root discriminant \(34.94\)
Ramified primes $17,73$
Class number $1$
Class group trivial
Galois group $S_5$ (as 10T13)

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Normalized defining polynomial

Copy content comment:Define the number field
 
Copy content sage:x = polygen(QQ); K.<a> = NumberField(x^10 - x^9 - 6*x^8 + 20*x^7 + 12*x^6 - 122*x^5 + 173*x^4 + 201*x^3 - 738*x^2 + 594*x + 81)
 
Copy content gp:K = bnfinit(y^10 - y^9 - 6*y^8 + 20*y^7 + 12*y^6 - 122*y^5 + 173*y^4 + 201*y^3 - 738*y^2 + 594*y + 81, 1)
 
Copy content magma:R<x> := PolynomialRing(Rationals()); K<a> := NumberField(x^10 - x^9 - 6*x^8 + 20*x^7 + 12*x^6 - 122*x^5 + 173*x^4 + 201*x^3 - 738*x^2 + 594*x + 81);
 
Copy content oscar:Qx, x = polynomial_ring(QQ); K, a = number_field(x^10 - x^9 - 6*x^8 + 20*x^7 + 12*x^6 - 122*x^5 + 173*x^4 + 201*x^3 - 738*x^2 + 594*x + 81)
 

\( x^{10} - x^{9} - 6x^{8} + 20x^{7} + 12x^{6} - 122x^{5} + 173x^{4} + 201x^{3} - 738x^{2} + 594x + 81 \) 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:  $10$
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:  $(2, 4)$
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:   \(2713688232425497\) \(\medspace = 17^{8}\cdot 73^{3}\) 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:  \(34.94\)
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:  $17^{4/5}73^{1/2}\approx 82.4177145175468$
Ramified primes:   \(17\), \(73\) 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:  \(\Q(\sqrt{73}) \)
$\Aut(K/\Q)$:   $C_1$
Copy content comment:Automorphisms
 
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.
This field has no CM subfields.

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

$1$, $a$, $a^{2}$, $a^{3}$, $a^{4}$, $a^{5}$, $a^{6}$, $\frac{1}{3}a^{7}-\frac{1}{3}a^{6}-\frac{1}{3}a^{4}+\frac{1}{3}a^{2}-\frac{1}{3}a$, $\frac{1}{9}a^{8}-\frac{1}{9}a^{7}+\frac{1}{3}a^{6}+\frac{2}{9}a^{5}+\frac{1}{3}a^{4}+\frac{4}{9}a^{3}+\frac{2}{9}a^{2}+\frac{1}{3}a$, $\frac{1}{135833463}a^{9}+\frac{7157492}{135833463}a^{8}+\frac{5920486}{45277821}a^{7}-\frac{22828948}{135833463}a^{6}-\frac{7898075}{45277821}a^{5}+\frac{43702744}{135833463}a^{4}+\frac{31493360}{135833463}a^{3}-\frac{15107351}{45277821}a^{2}-\frac{856298}{15092607}a-\frac{1752275}{5030869}$ 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:   \( -1 \)  (order $2$) 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:   $\frac{888943}{135833463}a^{9}-\frac{3014641}{135833463}a^{8}-\frac{1205585}{15092607}a^{7}+\frac{21683699}{135833463}a^{6}+\frac{475781}{15092607}a^{5}-\frac{208726112}{135833463}a^{4}+\frac{132786398}{135833463}a^{3}+\frac{31474888}{15092607}a^{2}-\frac{125219825}{15092607}a-\frac{4873807}{5030869}$, $\frac{568232}{45277821}a^{9}+\frac{56304}{5030869}a^{8}-\frac{3764273}{45277821}a^{7}+\frac{2214385}{45277821}a^{6}+\frac{16115836}{45277821}a^{5}-\frac{47743978}{45277821}a^{4}-\frac{10261856}{15092607}a^{3}+\frac{136017163}{45277821}a^{2}-\frac{15429801}{5030869}a-\frac{22745519}{5030869}$, $\frac{170017}{15092607}a^{9}+\frac{646159}{45277821}a^{8}-\frac{2412619}{45277821}a^{7}+\frac{383505}{5030869}a^{6}+\frac{16128050}{45277821}a^{5}-\frac{11802046}{15092607}a^{4}-\frac{2856548}{45277821}a^{3}+\frac{118581620}{45277821}a^{2}-\frac{42523841}{15092607}a-\frac{1936704}{5030869}$, $\frac{3602672}{135833463}a^{9}-\frac{356051}{135833463}a^{8}-\frac{2465156}{15092607}a^{7}+\frac{48428962}{135833463}a^{6}+\frac{3222202}{5030869}a^{5}-\frac{359833666}{135833463}a^{4}+\frac{260078611}{135833463}a^{3}+\frac{99990358}{15092607}a^{2}-\frac{197976133}{15092607}a+\frac{18299339}{5030869}$, $\frac{1038410}{135833463}a^{9}-\frac{3419858}{135833463}a^{8}-\frac{122254}{5030869}a^{7}+\frac{29181364}{135833463}a^{6}-\frac{748648}{5030869}a^{5}-\frac{140813050}{135833463}a^{4}+\frac{374202607}{135833463}a^{3}-\frac{3507543}{5030869}a^{2}-\frac{30996516}{5030869}a+\frac{45187598}{5030869}$ 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:  \( 8317.05771743 \)
Copy content comment:Regulator
 
Copy content sage:K.regulator()
 
Copy content gp:K.reg
 
Copy content magma:Regulator(K);
 
Copy content oscar:regulator(K)
 
Unit signature rank:  \( 2 \)

Class number formula

\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr \approx\mathstrut &\frac{2^{2}\cdot(2\pi)^{4}\cdot 8317.05771743 \cdot 1}{2\cdot\sqrt{2713688232425497}}\cr\approx \mathstrut & 0.497667418094 \end{aligned}\]

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^10 - x^9 - 6*x^8 + 20*x^7 + 12*x^6 - 122*x^5 + 173*x^4 + 201*x^3 - 738*x^2 + 594*x + 81) 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^10 - x^9 - 6*x^8 + 20*x^7 + 12*x^6 - 122*x^5 + 173*x^4 + 201*x^3 - 738*x^2 + 594*x + 81, 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^10 - x^9 - 6*x^8 + 20*x^7 + 12*x^6 - 122*x^5 + 173*x^4 + 201*x^3 - 738*x^2 + 594*x + 81); 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^10 - x^9 - 6*x^8 + 20*x^7 + 12*x^6 - 122*x^5 + 173*x^4 + 201*x^3 - 738*x^2 + 594*x + 81); 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

$S_5$ (as 10T13):

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 non-solvable group of order 120
The 7 conjugacy class representatives for $S_5$
Character table for $S_5$

Intermediate fields

The extension is primitive: there are no intermediate fields between this field and $\Q$.
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

Degree 5 sibling: 5.1.6097033.1
Degree 6 sibling: 6.2.32491088857.1
Degree 10 sibling: data not computed
Degree 12 sibling: data not computed
Degree 15 sibling: data not computed
Degree 20 siblings: data not computed
Degree 24 sibling: data not computed
Degree 30 siblings: data not computed
Degree 40 sibling: data not computed
Minimal sibling: 5.1.6097033.1

Frobenius cycle types

$p$ $2$ $3$ $5$ $7$ $11$ $13$ $17$ $19$ $23$ $29$ $31$ $37$ $41$ $43$ $47$ $53$ $59$
Cycle type ${\href{/padicField/2.5.0.1}{5} }^{2}$ ${\href{/padicField/3.3.0.1}{3} }^{3}{,}\,{\href{/padicField/3.1.0.1}{1} }$ ${\href{/padicField/5.6.0.1}{6} }{,}\,{\href{/padicField/5.3.0.1}{3} }{,}\,{\href{/padicField/5.1.0.1}{1} }$ ${\href{/padicField/7.6.0.1}{6} }{,}\,{\href{/padicField/7.3.0.1}{3} }{,}\,{\href{/padicField/7.1.0.1}{1} }$ ${\href{/padicField/11.4.0.1}{4} }^{2}{,}\,{\href{/padicField/11.2.0.1}{2} }$ ${\href{/padicField/13.6.0.1}{6} }{,}\,{\href{/padicField/13.3.0.1}{3} }{,}\,{\href{/padicField/13.1.0.1}{1} }$ R ${\href{/padicField/19.5.0.1}{5} }^{2}$ ${\href{/padicField/23.3.0.1}{3} }^{3}{,}\,{\href{/padicField/23.1.0.1}{1} }$ ${\href{/padicField/29.6.0.1}{6} }{,}\,{\href{/padicField/29.3.0.1}{3} }{,}\,{\href{/padicField/29.1.0.1}{1} }$ ${\href{/padicField/31.4.0.1}{4} }^{2}{,}\,{\href{/padicField/31.2.0.1}{2} }$ ${\href{/padicField/37.3.0.1}{3} }^{3}{,}\,{\href{/padicField/37.1.0.1}{1} }$ ${\href{/padicField/41.2.0.1}{2} }^{4}{,}\,{\href{/padicField/41.1.0.1}{1} }^{2}$ ${\href{/padicField/43.6.0.1}{6} }{,}\,{\href{/padicField/43.3.0.1}{3} }{,}\,{\href{/padicField/43.1.0.1}{1} }$ ${\href{/padicField/47.2.0.1}{2} }^{3}{,}\,{\href{/padicField/47.1.0.1}{1} }^{4}$ ${\href{/padicField/53.4.0.1}{4} }^{2}{,}\,{\href{/padicField/53.2.0.1}{2} }$ ${\href{/padicField/59.4.0.1}{4} }^{2}{,}\,{\href{/padicField/59.2.0.1}{2} }$

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
\(17\) Copy content Toggle raw display 17.2.5.8a1.1$x^{10} + 80 x^{9} + 2575 x^{8} + 41920 x^{7} + 350810 x^{6} + 1298656 x^{5} + 1052430 x^{4} + 377280 x^{3} + 69525 x^{2} + 6480 x + 260$$5$$2$$8$$F_5$$$[\ ]_{5}^{4}$$
\(73\) Copy content Toggle raw display $\Q_{73}$$x + 68$$1$$1$$0$Trivial$$[\ ]$$
$\Q_{73}$$x + 68$$1$$1$$0$Trivial$$[\ ]$$
73.1.2.1a1.2$x^{2} + 365$$2$$1$$1$$C_2$$$[\ ]_{2}$$
73.2.1.0a1.1$x^{2} + 70 x + 5$$1$$2$$0$$C_2$$$[\ ]^{2}$$
73.2.2.2a1.2$x^{4} + 140 x^{3} + 4910 x^{2} + 700 x + 98$$2$$2$$2$$C_2^2$$$[\ ]_{2}^{2}$$

Spectrum of ring of integers

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