# Properties

 Label 11310.m2 Conductor $11310$ Discriminant $1.751\times 10^{16}$ j-invariant $$\frac{1979758117698975186481}{17510434929000000}$$ CM no Rank $1$ Torsion structure $$\Z/{2}\Z \times \Z/{2}\Z$$

# Related objects

Show commands: Magma / Pari/GP / SageMath

## Minimal Weierstrass equation

sage: E = EllipticCurve([1, 0, 0, -261595, -51124975])

gp: E = ellinit([1, 0, 0, -261595, -51124975])

magma: E := EllipticCurve([1, 0, 0, -261595, -51124975]);

$$y^2+xy=x^3-261595x-51124975$$

## Mordell-Weil group structure

$\Z\times \Z/{2}\Z \times \Z/{2}\Z$

### Infinite order Mordell-Weil generator and height

sage: E.gens()

magma: Generators(E);

 $P$ = $$\left(-310, 605\right)$$ $\hat{h}(P)$ ≈ $0.73805206017709716565782890246$

## Torsion generators

sage: E.torsion_subgroup().gens()

gp: elltors(E)

magma: TorsionSubgroup(E);

$$\left(-274, 137\right)$$, $$\left(590, -295\right)$$

## Integral points

sage: E.integral_points()

magma: IntegralPoints(E);

$$\left(-310, 605\right)$$, $$\left(-310, -295\right)$$, $$\left(-280, 575\right)$$, $$\left(-280, -295\right)$$, $$\left(-274, 137\right)$$, $$\left(590, -295\right)$$, $$\left(740, 12305\right)$$, $$\left(740, -13045\right)$$, $$\left(1460, 51035\right)$$, $$\left(1460, -52495\right)$$, $$\left(1490, 52805\right)$$, $$\left(1490, -54295\right)$$, $$\left(5810, 438185\right)$$, $$\left(5810, -443995\right)$$, $$\left(12320660, 43240339505\right)$$, $$\left(12320660, -43252660165\right)$$

## Invariants

 sage: E.conductor().factor()  gp: ellglobalred(E)[1]  magma: Conductor(E); Conductor: $$11310$$ = $2 \cdot 3 \cdot 5 \cdot 13 \cdot 29$ sage: E.discriminant().factor()  gp: E.disc  magma: Discriminant(E); Discriminant: $17510434929000000$ = $2^{6} \cdot 3^{6} \cdot 5^{6} \cdot 13^{4} \cdot 29^{2}$ sage: E.j_invariant().factor()  gp: E.j  magma: jInvariant(E); j-invariant: $$\frac{1979758117698975186481}{17510434929000000}$$ = $2^{-6} \cdot 3^{-6} \cdot 5^{-6} \cdot 13^{-4} \cdot 29^{-2} \cdot 1483^{3} \cdot 8467^{3}$ Endomorphism ring: $\Z$ Geometric endomorphism ring: $$\Z$$ (no potential complex multiplication) Sato-Tate group: $\mathrm{SU}(2)$ Faltings height: $1.9402122393780121806740702981\dots$ Stable Faltings height: $1.9402122393780121806740702981\dots$

## BSD invariants

 sage: E.rank()  magma: Rank(E); Analytic rank: $1$ sage: E.regulator()  magma: Regulator(E); Regulator: $0.73805206017709716565782890246\dots$ sage: E.period_lattice().omega()  gp: E.omega[1]  magma: RealPeriod(E); Real period: $0.21121461251519325362126581556\dots$ sage: E.tamagawa_numbers()  gp: gr=ellglobalred(E); [[gr[4][i,1],gr[5][i][4]] | i<-[1..#gr[4][,1]]]  magma: TamagawaNumbers(E); Tamagawa product: $864$  = $( 2 \cdot 3 )\cdot( 2 \cdot 3 )\cdot( 2 \cdot 3 )\cdot2\cdot2$ sage: E.torsion_order()  gp: elltors(E)[1]  magma: Order(TorsionSubgroup(E)); Torsion order: $4$ sage: E.sha().an_numerical()  magma: MordellWeilShaInformation(E); Analytic order of Ш: $1$ (exact) sage: r = E.rank(); sage: E.lseries().dokchitser().derivative(1,r)/r.factorial()  gp: ar = ellanalyticrank(E); gp: ar[2]/factorial(ar[1])  magma: Lr1 where r,Lr1 := AnalyticRank(E: Precision:=12); Special value: $L'(E,1)$ ≈ $8.4179185149426662531826908835224891313$

## Modular invariants

Modular form 11310.2.a.m

sage: E.q_eigenform(20)

gp: xy = elltaniyama(E);

gp: x*deriv(xy[1])/(2*xy[2]+E.a1*xy[1]+E.a3)

magma: ModularForm(E);

$$q + q^{2} + q^{3} + q^{4} + q^{5} + q^{6} + q^{8} + q^{9} + q^{10} - 4 q^{11} + q^{12} - q^{13} + q^{15} + q^{16} + 2 q^{17} + q^{18} + O(q^{20})$$

 sage: E.modular_degree()  magma: ModularDegree(E); Modular degree: 138240 $\Gamma_0(N)$-optimal: no Manin constant: 1

## Local data

This elliptic curve is semistable. There are 5 primes of bad reduction:

sage: E.local_data()

gp: ellglobalred(E)[5]

magma: [LocalInformation(E,p) : p in BadPrimes(E)];

prime Tamagawa number Kodaira symbol Reduction type Root number ord($N$) ord($\Delta$) ord$(j)_{-}$
$2$ $6$ $I_{6}$ Split multiplicative -1 1 6 6
$3$ $6$ $I_{6}$ Split multiplicative -1 1 6 6
$5$ $6$ $I_{6}$ Split multiplicative -1 1 6 6
$13$ $2$ $I_{4}$ Non-split multiplicative 1 1 4 4
$29$ $2$ $I_{2}$ Split multiplicative -1 1 2 2

## Galois representations

sage: rho = E.galois_representation();

sage: [rho.image_type(p) for p in rho.non_surjective()]

magma: [GaloisRepresentation(E,p): p in PrimesUpTo(20)];

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
$2$ 2Cs 4.12.0.1

## $p$-adic regulators

sage: [E.padic_regulator(p) for p in primes(5,20) if E.conductor().valuation(p)<2]

$p$-adic regulators are not yet computed for curves that are not $\Gamma_0$-optimal.

## Iwasawa invariants

 $p$ Reduction type $\lambda$-invariant(s) $\mu$-invariant(s) 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 split split split ss ordinary nonsplit ordinary ss ordinary split ordinary ordinary ordinary ordinary ss 6 4 2 3,1 1 1 1 1,1 1 2 1 1 1 1 1,1 1 0 0 0,0 0 0 0 0,0 0 0 0 0 0 0 0,0

## Isogenies

This curve has non-trivial cyclic isogenies of degree $d$ for $d=$ 2.
Its isogeny class 11310.m consists of 2 curves linked by isogenies of degrees dividing 4.

## Growth of torsion in number fields

The number fields $K$ of degree less than 24 such that $E(K)_{\rm tors}$ is strictly larger than $E(\Q)_{\rm tors}$ $\cong \Z/{2}\Z \times \Z/{2}\Z$ are as follows:

 $[K:\Q]$ $E(K)_{\rm tors}$ Base change curve $K$ $2$ $$\Q(\sqrt{-6})$$ $$\Z/2\Z \times \Z/4\Z$$ Not in database $4$ $$\Q(\sqrt{6}, \sqrt{145})$$ $$\Z/2\Z \times \Z/4\Z$$ Not in database $4$ $$\Q(i, \sqrt{145})$$ $$\Z/2\Z \times \Z/4\Z$$ Not in database $8$ 8.0.2346588610560000.172 $$\Z/4\Z \times \Z/4\Z$$ Not in database $8$ Deg 8 $$\Z/2\Z \times \Z/8\Z$$ Not in database $8$ 8.2.44178827325867.1 $$\Z/2\Z \times \Z/6\Z$$ Not in database $16$ Deg 16 $$\Z/2\Z \times \Z/8\Z$$ Not in database $16$ Deg 16 $$\Z/2\Z \times \Z/8\Z$$ Not in database $16$ Deg 16 $$\Z/2\Z \times \Z/12\Z$$ 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.