Properties

Label 14450.o1
Conductor 1445014450
Discriminant 5.040×1014-5.040\times 10^{14}
j-invariant 2977569892 -\frac{297756989}{2}
CM no
Rank 00
Torsion structure trivial

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Minimal Weierstrass equation

Minimal Weierstrass equation

Simplified equation

y2+xy=x3+x2878710x+316677750y^2+xy=x^3+x^2-878710x+316677750 Copy content Toggle raw display (homogenize, simplify)
y2z+xyz=x3+x2z878710xz2+316677750z3y^2z+xyz=x^3+x^2z-878710xz^2+316677750z^3 Copy content Toggle raw display (dehomogenize, simplify)
y2=x31138808835x+14791999233150y^2=x^3-1138808835x+14791999233150 Copy content Toggle raw display (homogenize, minimize)

Copy content comment:Define the curve
 
Copy content sage:E = EllipticCurve([1, 1, 0, -878710, 316677750])
 
Copy content gp:E = ellinit([1, 1, 0, -878710, 316677750])
 
Copy content magma:E := EllipticCurve([1, 1, 0, -878710, 316677750]);
 
Copy content oscar:E = elliptic_curve([1, 1, 0, -878710, 316677750])
 
Copy content comment:Simplified equation
 
Copy content sage:E.short_weierstrass_model()
 
Copy content magma:WeierstrassModel(E);
 
Copy content oscar:short_weierstrass_model(E)
 

Mordell-Weil group structure

trivial

Copy content comment:Mordell-Weil group
 
Copy content magma:MordellWeilGroup(E);
 

Invariants

Conductor: NN  =  14450 14450  = 2521722 \cdot 5^{2} \cdot 17^{2}
Copy content comment:Conductor
 
Copy content sage:E.conductor().factor()
 
Copy content gp:ellglobalred(E)[1]
 
Copy content magma:Conductor(E);
 
Copy content oscar:conductor(E)
 
Discriminant: Δ\Delta  =  503998475112250-503998475112250 = 12531710-1 \cdot 2 \cdot 5^{3} \cdot 17^{10}
Copy content comment:Discriminant
 
Copy content sage:E.discriminant().factor()
 
Copy content gp:E.disc
 
Copy content magma:Discriminant(E);
 
Copy content oscar:discriminant(E)
 
j-invariant: jj  =  2977569892 -\frac{297756989}{2}  = 1211721013-1 \cdot 2^{-1} \cdot 17^{2} \cdot 101^{3}
Copy content comment:j-invariant
 
Copy content sage:E.j_invariant().factor()
 
Copy content gp:E.j
 
Copy content magma:jInvariant(E);
 
Copy content oscar:j_invariant(E)
 
Endomorphism ring: End(E)\mathrm{End}(E) = Z\Z
Geometric endomorphism ring: End(EQ)\mathrm{End}(E_{\overline{\Q}})  =  Z\Z    (no potential complex multiplication)
Copy content comment:Potential complex multiplication
 
Copy content sage:E.has_cm()
 
Copy content magma:HasComplexMultiplication(E);
 
Sato-Tate group: ST(E)\mathrm{ST}(E) = SU(2)\mathrm{SU}(2)
Faltings height: hFaltingsh_{\mathrm{Faltings}} ≈ 2.00299072629471472424877382102.0029907262947147242487738210
Copy content comment:Faltings height
 
Copy content gp:ellheight(E)
 
Copy content magma:FaltingsHeight(E);
 
Copy content oscar:faltings_height(E)
 
Stable Faltings height: hstableh_{\mathrm{stable}} ≈ 0.76037987186065710294269486053-0.76037987186065710294269486053
Copy content comment:Stable Faltings height
 
Copy content magma:StableFaltingsHeight(E);
 
Copy content oscar:stable_faltings_height(E)
 
abcabc quality: QQ ≈ 0.98540899132222340.9854089913222234
Szpiro ratio: σm\sigma_{m} ≈ 5.4990367657027395.499036765702739

BSD invariants

Analytic rank: ranr_{\mathrm{an}} = 0 0
Copy content comment:Analytic rank
 
Copy content sage:E.analytic_rank()
 
Copy content gp:ellanalyticrank(E)
 
Copy content magma:AnalyticRank(E);
 
Mordell-Weil rank: rr = 0 0
Copy content comment:Mordell-Weil rank
 
Copy content sage:E.rank()
 
Copy content gp:[lower,upper] = ellrank(E)
 
Copy content magma:Rank(E);
 
Regulator: Reg(E/Q)\mathrm{Reg}(E/\Q) = 11
Copy content comment:Regulator
 
Copy content sage:E.regulator()
 
Copy content gp:G = E.gen \\ if available matdet(ellheightmatrix(E,G))
 
Copy content magma:Regulator(E);
 
Real period: Ω\Omega ≈ 0.467031774481781748394157207580.46703177448178174839415720758
Copy content comment:Real Period
 
Copy content sage:E.period_lattice().omega()
 
Copy content gp:if(E.disc>0,2,1)*E.omega[1]
 
Copy content magma:(Discriminant(E) gt 0 select 2 else 1) * RealPeriod(E);
 
Tamagawa product: pcp\prod_{p}c_p = 2 2  = 121 1\cdot2\cdot1
Copy content comment:Tamagawa numbers
 
Copy content sage:E.tamagawa_numbers()
 
Copy content gp:gr=ellglobalred(E); [[gr[4][i,1],gr[5][i][4]] | i<-[1..#gr[4][,1]]]
 
Copy content magma:TamagawaNumbers(E);
 
Copy content oscar:tamagawa_numbers(E)
 
Torsion order: #E(Q)tor\#E(\Q)_{\mathrm{tor}} = 11
Copy content comment:Torsion order
 
Copy content sage:E.torsion_order()
 
Copy content gp:elltors(E)[1]
 
Copy content magma:Order(TorsionSubgroup(E));
 
Copy content oscar:prod(torsion_structure(E)[1])
 
Special value: L(E,1) L(E,1) ≈ 0.934063548963563496788314415170.93406354896356349678831441517
Copy content comment:Special L-value
 
Copy content sage:r = E.rank(); E.lseries().dokchitser().derivative(1,r)/r.factorial()
 
Copy content gp:[r,L1r] = ellanalyticrank(E); L1r/r!
 
Copy content magma:Lr1 where r,Lr1 := AnalyticRank(E: Precision:=12);
 
Analytic order of Ш: Шan{}_{\mathrm{an}}  =  11    (exact)
Copy content comment:Order of Sha
 
Copy content sage:E.sha().an_numerical()
 
Copy content magma:MordellWeilShaInformation(E);
 

BSD formula

0.934063549L(E,1)=#Ш(E/Q)ΩEReg(E/Q)pcp#E(Q)tor210.4670321.0000002120.934063549\begin{aligned} 0.934063549 \approx L(E,1) & = \frac{\# Ш(E/\Q)\cdot \Omega_E \cdot \mathrm{Reg}(E/\Q) \cdot \prod_p c_p}{\#E(\Q)_{\rm tor}^2} \\ & \approx \frac{1 \cdot 0.467032 \cdot 1.000000 \cdot 2}{1^2} \\ & \approx 0.934063549\end{aligned}

Copy content comment:BSD formula
 
Copy content sage:# self-contained SageMath code snippet for the BSD formula (checks rank, computes analytic sha) E = EllipticCurve([1, 1, 0, -878710, 316677750]); r = E.rank(); ar = E.analytic_rank(); assert r == ar; Lr1 = E.lseries().dokchitser().derivative(1,r)/r.factorial(); sha = E.sha().an_numerical(); omega = E.period_lattice().omega(); reg = E.regulator(); tam = E.tamagawa_product(); tor = E.torsion_order(); assert r == ar; print("analytic sha: " + str(RR(Lr1) * tor^2 / (omega * reg * tam)))
 
Copy content magma:/* self-contained Magma code snippet for the BSD formula (checks rank, computes analytic sha) */ E := EllipticCurve([1, 1, 0, -878710, 316677750]); r := Rank(E); ar,Lr1 := AnalyticRank(E: Precision := 12); assert r eq ar; sha := MordellWeilShaInformation(E); omega := RealPeriod(E) * (Discriminant(E) gt 0 select 2 else 1); reg := Regulator(E); tam := &*TamagawaNumbers(E); tor := #TorsionSubgroup(E); assert r eq ar; print "analytic sha:", Lr1 * tor^2 / (omega * reg * tam);
 

Modular invariants

Modular form   14450.2.a.o

qq2+2q3+q42q63q7q8+q93q11+2q123q13+3q14+q16q184q19+O(q20) q - q^{2} + 2 q^{3} + q^{4} - 2 q^{6} - 3 q^{7} - q^{8} + q^{9} - 3 q^{11} + 2 q^{12} - 3 q^{13} + 3 q^{14} + q^{16} - q^{18} - 4 q^{19} + O(q^{20}) Copy content Toggle raw display

Copy content comment:q-expansion of modular form
 
Copy content sage:E.q_eigenform(20)
 
Copy content gp:\\ actual modular form, use for small N [mf,F] = mffromell(E) Ser(mfcoefs(mf,20),q) \\ or just the series Ser(ellan(E,20),q)*q
 
Copy content magma:ModularForm(E);
 

For more coefficients, see the Downloads section to the right.

Modular degree: 208080
Copy content comment:Modular degree
 
Copy content sage:E.modular_degree()
 
Copy content gp:ellmoddegree(E)
 
Copy content magma:ModularDegree(E);
 
Γ0(N) \Gamma_0(N) -optimal: no
Manin constant: 1
Copy content comment:Manin constant
 
Copy content magma:ManinConstant(E);
 

Local data at primes of bad reduction

This elliptic curve is not semistable. There are 3 primes pp of bad reduction:

pp Tamagawa number Kodaira symbol Reduction type Root number ordp(N)\mathrm{ord}_p(N) ordp(Δ)\mathrm{ord}_p(\Delta) ordp(den(j))\mathrm{ord}_p(\mathrm{den}(j))
22 11 I1I_{1} nonsplit multiplicative 1 1 1 1
55 22 IIIIII additive -1 2 3 0
1717 11 IIII^{*} additive 1 2 10 0

Copy content comment:Local data
 
Copy content sage:E.local_data()
 
Copy content gp:ellglobalred(E)[5]
 
Copy content magma:[LocalInformation(E,p) : p in BadPrimes(E)];
 
Copy content oscar:[(p,tamagawa_number(E,p), kodaira_symbol(E,p), reduction_type(E,p)) for p in bad_primes(E)]
 

Galois representations

The \ell-adic Galois representation has maximal image for all primes \ell except those listed in the table below.

prime \ell mod-\ell image \ell-adic image
1717 17B.4.6 17.72.1.4

Copy content comment:Mod p Galois image
 
Copy content sage:rho = E.galois_representation(); [rho.image_type(p) for p in rho.non_surjective()]
 
Copy content magma:[GaloisRepresentation(E,p): p in PrimesUpTo(20)];
 

Copy content comment:Adelic image of Galois representation
 
Copy content sage:gens = [[103, 34, 119, 579], [69, 306, 85, 579], [137, 0, 0, 273], [639, 408, 544, 87], [1, 136, 0, 1], [545, 136, 544, 545], [1, 20, 0, 1], [89, 34, 17, 115], [1, 0, 170, 1], [256, 425, 119, 1], [1, 170, 0, 1], [511, 510, 170, 171]] GL(2,Integers(680)).subgroup(gens)
 
Copy content magma:Gens := [[103, 34, 119, 579], [69, 306, 85, 579], [137, 0, 0, 273], [639, 408, 544, 87], [1, 136, 0, 1], [545, 136, 544, 545], [1, 20, 0, 1], [89, 34, 17, 115], [1, 0, 170, 1], [256, 425, 119, 1], [1, 170, 0, 1], [511, 510, 170, 171]]; sub<GL(2,Integers(680))|Gens>;
 

The image H:=ρE(Gal(Q/Q))H:=\rho_E(\Gal(\overline{\Q}/\Q)) of the adelic Galois representation has level 680=23517 680 = 2^{3} \cdot 5 \cdot 17 , index 576576, genus 1717, and generators

(10334119579),(6930685579),(13700273),(63940854487),(113601),(545136544545),(12001),(893417115),(101701),(2564251191),(117001),(511510170171)\left(\begin{array}{rr} 103 & 34 \\ 119 & 579 \end{array}\right),\left(\begin{array}{rr} 69 & 306 \\ 85 & 579 \end{array}\right),\left(\begin{array}{rr} 137 & 0 \\ 0 & 273 \end{array}\right),\left(\begin{array}{rr} 639 & 408 \\ 544 & 87 \end{array}\right),\left(\begin{array}{rr} 1 & 136 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 545 & 136 \\ 544 & 545 \end{array}\right),\left(\begin{array}{rr} 1 & 20 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 89 & 34 \\ 17 & 115 \end{array}\right),\left(\begin{array}{rr} 1 & 0 \\ 170 & 1 \end{array}\right),\left(\begin{array}{rr} 256 & 425 \\ 119 & 1 \end{array}\right),\left(\begin{array}{rr} 1 & 170 \\ 0 & 1 \end{array}\right),\left(\begin{array}{rr} 511 & 510 \\ 170 & 171 \end{array}\right).

Input positive integer mm to see the generators of the reduction of HH to GL2(Z/mZ)\mathrm{GL}_2(\Z/m\Z):

The torsion field K:=Q(E[680])K:=\Q(E[680]) is a degree-100270080100270080 Galois extension of Q\Q with Gal(K/Q)\Gal(K/\Q) isomorphic to the projection of HH to GL2(Z/680Z)\GL_2(\Z/680\Z).

The table below list all primes \ell for which the Serre invariants associated to the mod-\ell Galois representation are exceptional.

\ell Reduction type Serre weight Serre conductor
22 nonsplit multiplicative 44 1445=5172 1445 = 5 \cdot 17^{2}
55 additive 1010 578=2172 578 = 2 \cdot 17^{2}
1717 additive 6666 50=252 50 = 2 \cdot 5^{2}

Isogenies

Copy content comment:Isogenies
 
Copy content gp:ellisomat(E)
 

This curve has non-trivial cyclic isogenies of degree dd for d=d= 17.
Its isogeny class 14450.o consists of 2 curves linked by isogenies of degree 17.

Twists

The minimal quadratic twist of this elliptic curve is 14450.b2, its twist by 1717.

Growth of torsion in number fields

The number fields KK of degree less than 24 such that E(K)torsE(K)_{\rm tors} is strictly larger than E(Q)torsE(\Q)_{\rm tors} (which is trivial) are as follows:

[K:Q][K:\Q] KK E(K)torsE(K)_{\rm tors} Base change curve
33 3.1.11560.1 Z/2Z\Z/2\Z not in database
66 6.0.5345344000.1 Z/2ZZ/2Z\Z/2\Z \oplus \Z/2\Z not in database
88 deg 8 Z/3Z\Z/3\Z not in database
1212 deg 12 Z/4Z\Z/4\Z not in database
1616 16.16.698833752810013621337890625.1 Z/17Z\Z/17\Z not in database

We only show fields where the torsion growth is primitive. For fields not in the database, click on the degree shown to reveal the defining polynomial.

Iwasawa invariants

pp 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47
Reduction type nonsplit ord add ord ord ord add ord ord ord ord ord ord ord ord
λ\lambda-invariant(s) 2 0 - 0 0 0 - 0 0 0 0 0 0 0 0
μ\mu-invariant(s) 0 0 - 0 0 0 - 0 0 0 0 0 0 0 0

An entry - indicates that the invariants are not computed because the reduction is additive.

pp-adic regulators

All pp-adic regulators are identically 11 since the rank is 00.