Show commands for: Magma / SageMath / Pari/GP

## Minimal Weierstrass equation

magma: E := EllipticCurve([0, 1, 0, -17, 16]); // or

magma: E := EllipticCurve("32276b1");

sage: E = EllipticCurve([0, 1, 0, -17, 16]) # or

sage: E = EllipticCurve("32276b1")

gp: E = ellinit([0, 1, 0, -17, 16]) \\ or

gp: E = ellinit("32276b1")

$$y^2 = x^{3} + x^{2} - 17 x + 16$$

## Mordell-Weil group structure

$$\Z^3$$

### Infinite order Mordell-Weil generators and heights

magma: Generators(E);

sage: E.gens()

 $$P$$ = $$\left(1, -1\right)$$ $$\left(-4, 6\right)$$ $$\left(-3, 7\right)$$ $$\hat{h}(P)$$ ≈ 0.768695779738 1.86189868124 1.31214405293

## Integral points

magma: IntegralPoints(E);

sage: E.integral_points()

$$(-5,\pm 1)$$, $$(-4,\pm 6)$$, $$(-3,\pm 7)$$, $$(0,\pm 4)$$, $$(1,\pm 1)$$, $$(3,\pm 1)$$, $$(5,\pm 9)$$, $$(7,\pm 17)$$, $$(16,\pm 64)$$, $$(23,\pm 111)$$, $$(33,\pm 191)$$, $$(57,\pm 433)$$, $$(156,\pm 1954)$$, $$(175,\pm 2321)$$, $$(585,\pm 14161)$$, $$(50293,\pm 11278871)$$

## Invariants

 magma: Conductor(E);  sage: E.conductor().factor()  gp: ellglobalred(E) Conductor: $$32276$$ = $$2^{2} \cdot 8069$$ magma: Discriminant(E);  sage: E.discriminant().factor()  gp: E.disc Discriminant: $$129104$$ = $$2^{4} \cdot 8069$$ magma: jInvariant(E);  sage: E.j_invariant().factor()  gp: E.j j-invariant: $$\frac{35995648}{8069}$$ = $$2^{14} \cdot 13^{3} \cdot 8069^{-1}$$ Endomorphism ring: $$\Z$$ (no Complex Multiplication) Sato-Tate Group: $\mathrm{SU}(2)$

## BSD invariants

 magma: Rank(E);  sage: E.rank() Rank: $$3$$ magma: Regulator(E);  sage: E.regulator() Regulator: $$0.6799267537$$ magma: RealPeriod(E);  sage: E.period_lattice().omega()  gp: E.omega Real period: $$3.10471467955$$ magma: TamagawaNumbers(E);  sage: E.tamagawa_numbers()  gp: gr=ellglobalred(E); [[gr[i,1],gr[i]] | i<-[1..#gr[,1]]] Tamagawa product: $$3$$  = $$3\cdot1$$ magma: Order(TorsionSubgroup(E));  sage: E.torsion_order()  gp: elltors(E) Torsion order: $$1$$ magma: MordellWeilShaInformation(E);  sage: E.sha().an_numerical() Analytic order of Ш: $$1$$ (rounded)

## Modular invariants

#### Modular form 32276.2.a.a

magma: ModularForm(E);

sage: E.q_eigenform(20)

gp: xy = elltaniyama(E);

gp: x*deriv(xy)/(2*xy+E.a1*xy+E.a3)

$$q - 2q^{3} - 3q^{5} - 4q^{7} + q^{9} - 6q^{11} - 5q^{13} + 6q^{15} - 2q^{17} + O(q^{20})$$

 magma: ModularDegree(E);  sage: E.modular_degree() Modular degree: 5136 $$\Gamma_0(N)$$-optimal: yes Manin constant: 1

#### Special L-value

magma: Lr1 where r,Lr1 := AnalyticRank(E: Precision:=12);

sage: r = E.rank();

sage: E.lseries().dokchitser().derivative(1,r)/r.factorial()

gp: ar = ellanalyticrank(E);

gp: ar/factorial(ar)

$$L^{(3)}(E,1)/3!$$ ≈ $$6.33293571969$$

## Local data

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

sage: E.local_data()

gp: ellglobalred(E)

prime Tamagawa number Kodaira symbol Reduction type Root number ord($$N$$) ord($$\Delta$$) ord$$(j)_{-}$$
$$2$$ $$3$$ $$IV$$ Additive -1 2 4 0
$$8069$$ $$1$$ $$I_{1}$$ Split multiplicative -1 1 1 1

## Galois representations

The 2-adic representation attached to this elliptic curve is surjective.

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

sage: rho = E.galois_representation();

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

The mod $$p$$ Galois representation has maximal image $$\GL(2,\F_p)$$ for all primes $$p$$ .

## $p$-adic data

### $p$-adic regulators

sage: [E.padic_regulator(p) for p in primes(3,20) if E.conductor().valuation(p)<2]

Note: $$p$$-adic regulator data only exists for primes $$p\ge5$$ of good ordinary reduction.

## 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 8069 add ordinary ordinary ordinary ordinary ordinary ordinary ss ordinary ordinary ordinary ordinary ordinary ordinary ordinary split - 3 3 3 3 3 3 3,5 3 3 5 3 3 3 3 ? - 0 0 0 0 0 0 0,0 0 0 0 0 0 0 0 ?

An entry ? indicates that the invariants have not yet been computed.

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

## Isogenies

This curve has no rational isogenies. Its isogeny class 32276b consists of this curve only.

## Growth of torsion in number fields

The number fields $K$ of degree up to 7 such that $E(K)_{\rm tors}$ is strictly larger than $E(\Q)_{\rm tors}$ (which is trivial) are as follows:

$[K:\Q]$ $K$ $E(K)_{\rm tors}$ Base-change curve
3 3.3.8069.1 $$\Z/2\Z$$ Not in database
6 6.6.525362592509.1 $$\Z/2\Z \times \Z/2\Z$$ Not in database

We only show fields where the torsion growth is primitive. For each field $K$ we either show its label, or a defining polynomial when $K$ is not in the database.