Properties

Label 300.8.i.c
Level $300$
Weight $8$
Character orbit 300.i
Analytic conductor $93.716$
Analytic rank $0$
Dimension $16$
CM no
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [300,8,Mod(257,300)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(300, base_ring=CyclotomicField(4))
 
chi = DirichletCharacter(H, H._module([0, 2, 1]))
 
N = Newforms(chi, 8, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("300.257");
 
S:= CuspForms(chi, 8);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 300 = 2^{2} \cdot 3 \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 8 \)
Character orbit: \([\chi]\) \(=\) 300.i (of order \(4\), degree \(2\), minimal)

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: no
Analytic conductor: \(93.7155076452\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(8\) over \(\Q(i)\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - 8 x^{15} + 132 x^{14} - 784 x^{13} + 5524236 x^{12} - 33135588 x^{11} - 49457570 x^{10} + \cdots + 18\!\cdots\!21 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{19}]\)
Coefficient ring index: \( 2^{44}\cdot 3^{12}\cdot 5^{8} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{4}]$

$q$-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 \(1,\beta_1,\ldots,\beta_{15}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \beta_{6} q^{3} + ( - \beta_{11} + 3 \beta_{5} + 6 \beta_{4}) q^{7} + ( - \beta_{7} - 573 \beta_1) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q - \beta_{6} q^{3} + ( - \beta_{11} + 3 \beta_{5} + 6 \beta_{4}) q^{7} + ( - \beta_{7} - 573 \beta_1) q^{9} + \beta_{8} q^{11} + ( - 26 \beta_{12} + \cdots - 16 \beta_{6}) q^{13}+ \cdots + (1485 \beta_{14} + \cdots - 1437480 \beta_1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q+O(q^{10}) \) Copy content Toggle raw display \( 16 q + 215904 q^{21} + 872704 q^{31} + 1978560 q^{51} + 12752864 q^{61} + 10696176 q^{81} - 39496704 q^{91}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - 8 x^{15} + 132 x^{14} - 784 x^{13} + 5524236 x^{12} - 33135588 x^{11} - 49457570 x^{10} + \cdots + 18\!\cdots\!21 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( - 127077663550772 \nu^{14} + 889543644855404 \nu^{13} + \cdots + 51\!\cdots\!43 ) / 73\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 22\!\cdots\!41 \nu^{14} + \cdots + 95\!\cdots\!97 ) / 11\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( - 19\!\cdots\!95 \nu^{14} + \cdots + 18\!\cdots\!67 ) / 48\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( - 36\!\cdots\!52 \nu^{15} + \cdots + 43\!\cdots\!15 ) / 14\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( - 36\!\cdots\!52 \nu^{15} + \cdots - 23\!\cdots\!95 ) / 36\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 23\!\cdots\!32 \nu^{15} + \cdots + 38\!\cdots\!71 ) / 23\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( - 21\!\cdots\!94 \nu^{15} + \cdots - 11\!\cdots\!67 ) / 11\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( 40\!\cdots\!14 \nu^{15} + \cdots + 12\!\cdots\!15 ) / 12\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( - 21\!\cdots\!94 \nu^{15} + \cdots + 22\!\cdots\!29 ) / 59\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( - 47\!\cdots\!64 \nu^{15} + \cdots + 38\!\cdots\!11 ) / 11\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( - 14\!\cdots\!52 \nu^{15} + \cdots - 28\!\cdots\!75 ) / 92\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( 22\!\cdots\!52 \nu^{15} + \cdots - 16\!\cdots\!05 ) / 92\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( 73\!\cdots\!10 \nu^{15} + \cdots + 38\!\cdots\!99 ) / 24\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( - 54\!\cdots\!50 \nu^{15} + \cdots - 11\!\cdots\!49 ) / 13\!\cdots\!00 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( - 73\!\cdots\!10 \nu^{15} + \cdots - 30\!\cdots\!99 ) / 12\!\cdots\!00 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( - 4 \beta_{15} + 12 \beta_{14} + 16 \beta_{13} - 9 \beta_{12} - 9 \beta_{11} + 36 \beta_{10} + \cdots + 1440 ) / 2880 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( - 4 \beta_{15} + 12 \beta_{14} + 16 \beta_{13} - 9 \beta_{12} - 9 \beta_{11} + 36 \beta_{10} + \cdots - 36000 ) / 2880 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( - 3275 \beta_{15} - 6675 \beta_{14} + 13100 \beta_{13} - 6561 \beta_{12} + 6669 \beta_{11} + \cdots - 27360 ) / 1440 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( - 283696 \beta_{15} - 26712 \beta_{14} - 488816 \beta_{13} - 26235 \beta_{12} + 26685 \beta_{11} + \cdots - 3972006720 ) / 2880 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 10613830 \beta_{15} - 13509990 \beta_{14} - 46514320 \beta_{13} - 2093229 \beta_{12} + \cdots - 9929925360 ) / 2880 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( 21160307 \beta_{15} - 10115796 \beta_{14} - 8534978 \beta_{13} - 1553526 \beta_{12} + \cdots + 186206125500 ) / 720 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 13185881800 \beta_{15} + 23022350100 \beta_{14} - 51663833200 \beta_{13} - 43975205937 \beta_{12} + \cdots + 2641640431680 ) / 2880 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( ( 265210410416 \beta_{15} + 30759388752 \beta_{14} + 426689854336 \beta_{13} - 58623961935 \beta_{12} + \cdots + 23\!\cdots\!60 ) / 960 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( - 13499174754773 \beta_{15} + 8315363193369 \beta_{14} + 64034289011192 \beta_{13} + \cdots + 15\!\cdots\!20 ) / 1440 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( - 571923207396520 \beta_{15} + 82461262578060 \beta_{14} - 231187507188920 \beta_{13} + \cdots - 39\!\cdots\!00 ) / 2880 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( - 19\!\cdots\!50 \beta_{15} + \cdots - 22\!\cdots\!20 ) / 2880 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( ( - 43\!\cdots\!42 \beta_{15} + \cdots - 34\!\cdots\!80 ) / 720 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( 71\!\cdots\!68 \beta_{15} + \cdots - 88\!\cdots\!60 ) / 2880 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( 24\!\cdots\!52 \beta_{15} + \cdots + 16\!\cdots\!00 ) / 2880 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( 77\!\cdots\!75 \beta_{15} + \cdots + 60\!\cdots\!40 ) / 1440 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/300\mathbb{Z}\right)^\times\).

\(n\) \(101\) \(151\) \(277\)
\(\chi(n)\) \(-1\) \(1\) \(-\beta_{1}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
257.1
27.4835 + 30.5542i
−19.4848 16.4140i
20.4848 + 16.4140i
−26.4835 23.4128i
−26.4835 30.5542i
20.4848 + 23.5555i
−19.4848 23.5555i
27.4835 + 23.4128i
27.4835 30.5542i
−19.4848 + 16.4140i
20.4848 16.4140i
−26.4835 + 23.4128i
−26.4835 + 30.5542i
20.4848 23.5555i
−19.4848 + 23.5555i
27.4835 23.4128i
0 −46.0669 + 8.05216i 0 0 0 −565.187 565.187i 0 2057.33 741.876i 0
257.2 0 −40.5650 23.2698i 0 0 0 208.115 + 208.115i 0 1104.03 + 1887.88i 0
257.3 0 −23.2698 40.5650i 0 0 0 −208.115 208.115i 0 −1104.03 + 1887.88i 0
257.4 0 −8.05216 + 46.0669i 0 0 0 −565.187 565.187i 0 −2057.33 741.876i 0
257.5 0 8.05216 46.0669i 0 0 0 565.187 + 565.187i 0 −2057.33 741.876i 0
257.6 0 23.2698 + 40.5650i 0 0 0 208.115 + 208.115i 0 −1104.03 + 1887.88i 0
257.7 0 40.5650 + 23.2698i 0 0 0 −208.115 208.115i 0 1104.03 + 1887.88i 0
257.8 0 46.0669 8.05216i 0 0 0 565.187 + 565.187i 0 2057.33 741.876i 0
293.1 0 −46.0669 8.05216i 0 0 0 −565.187 + 565.187i 0 2057.33 + 741.876i 0
293.2 0 −40.5650 + 23.2698i 0 0 0 208.115 208.115i 0 1104.03 1887.88i 0
293.3 0 −23.2698 + 40.5650i 0 0 0 −208.115 + 208.115i 0 −1104.03 1887.88i 0
293.4 0 −8.05216 46.0669i 0 0 0 −565.187 + 565.187i 0 −2057.33 + 741.876i 0
293.5 0 8.05216 + 46.0669i 0 0 0 565.187 565.187i 0 −2057.33 + 741.876i 0
293.6 0 23.2698 40.5650i 0 0 0 208.115 208.115i 0 −1104.03 1887.88i 0
293.7 0 40.5650 23.2698i 0 0 0 −208.115 + 208.115i 0 1104.03 1887.88i 0
293.8 0 46.0669 + 8.05216i 0 0 0 565.187 565.187i 0 2057.33 + 741.876i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 257.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
5.b even 2 1 inner
5.c odd 4 2 inner
15.d odd 2 1 inner
15.e even 4 2 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 300.8.i.c 16
3.b odd 2 1 inner 300.8.i.c 16
5.b even 2 1 inner 300.8.i.c 16
5.c odd 4 2 inner 300.8.i.c 16
15.d odd 2 1 inner 300.8.i.c 16
15.e even 4 2 inner 300.8.i.c 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
300.8.i.c 16 1.a even 1 1 trivial
300.8.i.c 16 3.b odd 2 1 inner
300.8.i.c 16 5.b even 2 1 inner
300.8.i.c 16 5.c odd 4 2 inner
300.8.i.c 16 15.d odd 2 1 inner
300.8.i.c 16 15.e even 4 2 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{8} + 415661203008T_{7}^{4} + 3062695070691995222016 \) acting on \(S_{8}^{\mathrm{new}}(300, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} \) Copy content Toggle raw display
$3$ \( T^{16} + \cdots + 52\!\cdots\!21 \) Copy content Toggle raw display
$5$ \( T^{16} \) Copy content Toggle raw display
$7$ \( (T^{8} + \cdots + 30\!\cdots\!16)^{2} \) Copy content Toggle raw display
$11$ \( (T^{4} + \cdots + 273576376627200)^{4} \) Copy content Toggle raw display
$13$ \( (T^{8} + \cdots + 43\!\cdots\!76)^{2} \) Copy content Toggle raw display
$17$ \( (T^{8} + \cdots + 41\!\cdots\!00)^{2} \) Copy content Toggle raw display
$19$ \( (T^{4} + \cdots + 89\!\cdots\!56)^{4} \) Copy content Toggle raw display
$23$ \( (T^{8} + \cdots + 32\!\cdots\!00)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} + \cdots + 44\!\cdots\!00)^{4} \) Copy content Toggle raw display
$31$ \( (T^{2} - 109088 T - 27149305664)^{8} \) Copy content Toggle raw display
$37$ \( (T^{8} + \cdots + 71\!\cdots\!56)^{2} \) Copy content Toggle raw display
$41$ \( (T^{4} + \cdots + 23\!\cdots\!00)^{4} \) Copy content Toggle raw display
$43$ \( (T^{8} + \cdots + 27\!\cdots\!16)^{2} \) Copy content Toggle raw display
$47$ \( (T^{8} + \cdots + 12\!\cdots\!00)^{2} \) Copy content Toggle raw display
$53$ \( (T^{8} + \cdots + 68\!\cdots\!00)^{2} \) Copy content Toggle raw display
$59$ \( (T^{4} + \cdots + 14\!\cdots\!00)^{4} \) Copy content Toggle raw display
$61$ \( (T^{2} - 1594108 T - 783848281484)^{8} \) Copy content Toggle raw display
$67$ \( (T^{8} + \cdots + 22\!\cdots\!56)^{2} \) Copy content Toggle raw display
$71$ \( (T^{4} + \cdots + 41\!\cdots\!00)^{4} \) Copy content Toggle raw display
$73$ \( (T^{8} + \cdots + 91\!\cdots\!96)^{2} \) Copy content Toggle raw display
$79$ \( (T^{4} + \cdots + 18\!\cdots\!16)^{4} \) Copy content Toggle raw display
$83$ \( (T^{8} + \cdots + 16\!\cdots\!00)^{2} \) Copy content Toggle raw display
$89$ \( (T^{4} + \cdots + 36\!\cdots\!00)^{4} \) Copy content Toggle raw display
$97$ \( (T^{8} + \cdots + 18\!\cdots\!56)^{2} \) Copy content Toggle raw display
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