Properties

Label 2.68.a.b
Level $2$
Weight $68$
Character orbit 2.a
Self dual yes
Analytic conductor $56.858$
Analytic rank $1$
Dimension $3$
CM no
Inner twists $1$

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Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2,68,Mod(1,2)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2, base_ring=CyclotomicField(1))
 
chi = DirichletCharacter(H, H._module([]))
 
N = Newforms(chi, 68, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2.1");
 
S:= CuspForms(chi, 68);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2 \)
Weight: \( k \) \(=\) \( 68 \)
Character orbit: \([\chi]\) \(=\) 2.a (trivial)

Newform invariants

comment: select newform
 
sage: f = N[0] # Warning: the index may be different
 
gp: f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(56.8580703860\)
Analytic rank: \(1\)
Dimension: \(3\)
Coefficient field: \(\mathbb{Q}[x]/(x^{3} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{3} - x^{2} - 195874426031875504236526x - 11619230000023993068059089554543524 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 2^{24}\cdot 3^{7}\cdot 5^{2}\cdot 7\cdot 11 \)
Twist minimal: yes
Fricke sign: \(-1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\beta_2\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + 8589934592 q^{2} + ( - \beta_1 - 794134480773348) q^{3} + 73\!\cdots\!64 q^{4}+ \cdots + (98388427950 \beta_{2} + \cdots + 63\!\cdots\!17) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + 8589934592 q^{2} + ( - \beta_1 - 794134480773348) q^{3} + 73\!\cdots\!64 q^{4}+ \cdots + ( - 37\!\cdots\!00 \beta_{2} + \cdots + 93\!\cdots\!44) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 3 q + 25769803776 q^{2} - 23\!\cdots\!44 q^{3}+ \cdots + 19\!\cdots\!51 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 3 q + 25769803776 q^{2} - 23\!\cdots\!44 q^{3}+ \cdots + 28\!\cdots\!32 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{3} - x^{2} - 195874426031875504236526x - 11619230000023993068059089554543524 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( 34560\nu - 11520 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 32768\nu^{2} - 2915692819806720\nu - 4278942128140692450941731328 ) / 2699271 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta _1 + 11520 ) / 34560 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( 24293439\beta_{2} + 759295005158\beta _1 + 38510479153274979136935002112 ) / 294912 \) Copy content Toggle raw display

Embeddings

For each embedding \(\iota_m\) of the coefficient field, the values \(\iota_m(a_n)\) are shown below.

For more information on an embedded modular form you can click on its label.

comment: embeddings in the coefficient field
 
gp: mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
4.69694e11
−6.04474e10
−4.09246e11
8.58993e9 −1.70268e16 7.37870e19 −2.72411e22 −1.46259e26 −2.32072e28 6.33825e29 1.97201e32 −2.34000e32
1.2 8.58993e9 1.29493e15 7.37870e19 3.81293e23 1.11233e25 −1.02948e27 6.33825e29 −9.10326e31 3.27529e33
1.3 8.58993e9 1.33494e16 7.37870e19 −2.84057e23 1.14671e26 −2.26934e28 6.33825e29 8.54976e31 −2.44003e33
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(2\) \(-1\)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2.68.a.b 3
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
2.68.a.b 3 1.a even 1 1 trivial

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{3} + \cdots + 29\!\cdots\!92 \) acting on \(S_{68}^{\mathrm{new}}(\Gamma_0(2))\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T - 8589934592)^{3} \) Copy content Toggle raw display
$3$ \( T^{3} + \cdots + 29\!\cdots\!92 \) Copy content Toggle raw display
$5$ \( T^{3} + \cdots - 29\!\cdots\!00 \) Copy content Toggle raw display
$7$ \( T^{3} + \cdots + 54\!\cdots\!44 \) Copy content Toggle raw display
$11$ \( T^{3} + \cdots - 46\!\cdots\!68 \) Copy content Toggle raw display
$13$ \( T^{3} + \cdots + 10\!\cdots\!72 \) Copy content Toggle raw display
$17$ \( T^{3} + \cdots + 29\!\cdots\!44 \) Copy content Toggle raw display
$19$ \( T^{3} + \cdots + 26\!\cdots\!00 \) Copy content Toggle raw display
$23$ \( T^{3} + \cdots + 55\!\cdots\!92 \) Copy content Toggle raw display
$29$ \( T^{3} + \cdots - 10\!\cdots\!00 \) Copy content Toggle raw display
$31$ \( T^{3} + \cdots + 17\!\cdots\!32 \) Copy content Toggle raw display
$37$ \( T^{3} + \cdots + 42\!\cdots\!84 \) Copy content Toggle raw display
$41$ \( T^{3} + \cdots + 11\!\cdots\!72 \) Copy content Toggle raw display
$43$ \( T^{3} + \cdots - 53\!\cdots\!48 \) Copy content Toggle raw display
$47$ \( T^{3} + \cdots + 17\!\cdots\!24 \) Copy content Toggle raw display
$53$ \( T^{3} + \cdots - 34\!\cdots\!28 \) Copy content Toggle raw display
$59$ \( T^{3} + \cdots - 15\!\cdots\!00 \) Copy content Toggle raw display
$61$ \( T^{3} + \cdots + 47\!\cdots\!72 \) Copy content Toggle raw display
$67$ \( T^{3} + \cdots - 14\!\cdots\!16 \) Copy content Toggle raw display
$71$ \( T^{3} + \cdots + 54\!\cdots\!32 \) Copy content Toggle raw display
$73$ \( T^{3} + \cdots - 63\!\cdots\!28 \) Copy content Toggle raw display
$79$ \( T^{3} + \cdots - 12\!\cdots\!00 \) Copy content Toggle raw display
$83$ \( T^{3} + \cdots + 39\!\cdots\!12 \) Copy content Toggle raw display
$89$ \( T^{3} + \cdots - 14\!\cdots\!00 \) Copy content Toggle raw display
$97$ \( T^{3} + \cdots - 38\!\cdots\!36 \) Copy content Toggle raw display
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