Properties

Label 310.2.q.f
Level $310$
Weight $2$
Character orbit 310.q
Analytic conductor $2.475$
Analytic rank $0$
Dimension $8$
CM no
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [310,2,Mod(41,310)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(310, base_ring=CyclotomicField(30))
 
chi = DirichletCharacter(H, H._module([0, 14]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("310.41");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 310 = 2 \cdot 5 \cdot 31 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 310.q (of order \(15\), degree \(8\), 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: \(2.47536246266\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: \(\Q(\zeta_{15})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - x^{7} + x^{5} - x^{4} + x^{3} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{15}]$

$q$-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 primitive root of unity \(\zeta_{15}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q - \zeta_{15}^{3} q^{2} + (\zeta_{15}^{7} + 2 \zeta_{15}^{6} + \cdots + \zeta_{15}) q^{3} + \cdots + ( - \zeta_{15}^{7} + 4 \zeta_{15}^{6} + \cdots + 1) q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q - \zeta_{15}^{3} q^{2} + (\zeta_{15}^{7} + 2 \zeta_{15}^{6} + \cdots + \zeta_{15}) q^{3} + \cdots + ( - \zeta_{15}^{7} + 2 \zeta_{15}^{6} + \cdots - 12) q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 2 q^{2} + 6 q^{3} - 2 q^{4} + 4 q^{5} + 4 q^{6} + 2 q^{7} + 2 q^{8} - 7 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + 2 q^{2} + 6 q^{3} - 2 q^{4} + 4 q^{5} + 4 q^{6} + 2 q^{7} + 2 q^{8} - 7 q^{9} + q^{10} - 3 q^{11} - 9 q^{12} + 9 q^{13} - 2 q^{14} - 3 q^{15} - 2 q^{16} - 4 q^{17} + 2 q^{18} + 20 q^{19} - q^{20} - 13 q^{21} + 3 q^{22} + 16 q^{23} - 11 q^{24} - 4 q^{25} + 6 q^{26} - 8 q^{28} + 13 q^{29} + 8 q^{30} - 13 q^{31} - 8 q^{32} + q^{33} - 6 q^{34} + 4 q^{35} - 12 q^{36} + 14 q^{37} - 3 q^{39} + q^{40} - 37 q^{41} + 3 q^{42} - 16 q^{43} + 7 q^{44} - 8 q^{45} - q^{46} + 12 q^{47} - 4 q^{48} + 7 q^{49} - q^{50} + 11 q^{51} - 6 q^{52} + 32 q^{53} + 3 q^{55} + 3 q^{56} + 10 q^{57} + 2 q^{58} + q^{59} - 3 q^{60} + 34 q^{61} - 2 q^{62} - 2 q^{63} - 2 q^{64} + 6 q^{65} - q^{66} + 7 q^{67} + 11 q^{68} - 43 q^{69} - 4 q^{70} + 14 q^{71} - 13 q^{72} - 73 q^{73} - 24 q^{74} - 9 q^{75} + 15 q^{76} - 3 q^{77} + 3 q^{78} + q^{79} - q^{80} - 4 q^{81} - 33 q^{82} - 11 q^{83} + 12 q^{84} - 8 q^{85} + 26 q^{86} + 11 q^{87} + 8 q^{88} - 20 q^{89} + 13 q^{90} + 9 q^{91} - 34 q^{92} - 11 q^{93} + 18 q^{94} - 5 q^{95} - 6 q^{96} - 7 q^{97} - 17 q^{98} - 34 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/310\mathbb{Z}\right)^\times\).

\(n\) \(187\) \(251\)
\(\chi(n)\) \(1\) \(1 - \zeta_{15}^{2} + \zeta_{15}^{3} - \zeta_{15}^{4} + \zeta_{15}^{6} - \zeta_{15}^{7}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
41.1
−0.978148 0.207912i
−0.104528 0.994522i
0.913545 0.406737i
0.669131 0.743145i
0.669131 + 0.743145i
−0.978148 + 0.207912i
0.913545 + 0.406737i
−0.104528 + 0.994522i
0.809017 + 0.587785i 0.290943 + 2.76814i 0.309017 + 0.951057i 0.500000 + 0.866025i −1.39169 + 2.41048i −1.18264 0.251377i −0.309017 + 0.951057i −4.64350 + 0.987006i −0.104528 + 0.994522i
51.1 −0.309017 0.951057i 1.83826 + 2.04160i −0.809017 + 0.587785i 0.500000 + 0.866025i 1.37362 2.37918i 0.0353579 + 0.336408i 0.809017 + 0.587785i −0.475324 + 4.52241i 0.669131 0.743145i
71.1 −0.309017 + 0.951057i −1.45630 0.309545i −0.809017 0.587785i 0.500000 + 0.866025i 0.744415 1.28936i 2.70071 1.20243i 0.809017 0.587785i −0.715659 0.318632i −0.978148 + 0.207912i
81.1 0.809017 + 0.587785i 2.32709 + 1.03609i 0.309017 + 0.951057i 0.500000 0.866025i 1.27366 + 2.20604i −0.553432 + 0.614648i −0.309017 + 0.951057i 2.33448 + 2.59271i 0.913545 0.406737i
111.1 0.809017 0.587785i 2.32709 1.03609i 0.309017 0.951057i 0.500000 + 0.866025i 1.27366 2.20604i −0.553432 0.614648i −0.309017 0.951057i 2.33448 2.59271i 0.913545 + 0.406737i
121.1 0.809017 0.587785i 0.290943 2.76814i 0.309017 0.951057i 0.500000 0.866025i −1.39169 2.41048i −1.18264 + 0.251377i −0.309017 0.951057i −4.64350 0.987006i −0.104528 0.994522i
131.1 −0.309017 0.951057i −1.45630 + 0.309545i −0.809017 + 0.587785i 0.500000 0.866025i 0.744415 + 1.28936i 2.70071 + 1.20243i 0.809017 + 0.587785i −0.715659 + 0.318632i −0.978148 0.207912i
231.1 −0.309017 + 0.951057i 1.83826 2.04160i −0.809017 0.587785i 0.500000 0.866025i 1.37362 + 2.37918i 0.0353579 0.336408i 0.809017 0.587785i −0.475324 4.52241i 0.669131 + 0.743145i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 41.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
31.g even 15 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 310.2.q.f 8
31.g even 15 1 inner 310.2.q.f 8
31.g even 15 1 9610.2.a.bi 4
31.h odd 30 1 9610.2.a.bb 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
310.2.q.f 8 1.a even 1 1 trivial
310.2.q.f 8 31.g even 15 1 inner
9610.2.a.bb 4 31.h odd 30 1
9610.2.a.bi 4 31.g even 15 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{8} - 6T_{3}^{7} + 20T_{3}^{6} - 34T_{3}^{5} + 9T_{3}^{4} + 146T_{3}^{3} - 315T_{3}^{2} + 29T_{3} + 841 \) acting on \(S_{2}^{\mathrm{new}}(310, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{4} - T^{3} + T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$3$ \( T^{8} - 6 T^{7} + \cdots + 841 \) Copy content Toggle raw display
$5$ \( (T^{2} - T + 1)^{4} \) Copy content Toggle raw display
$7$ \( T^{8} - 2 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$11$ \( T^{8} + 3 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$13$ \( T^{8} - 9 T^{7} + \cdots + 81 \) Copy content Toggle raw display
$17$ \( T^{8} + 4 T^{7} + \cdots + 961 \) Copy content Toggle raw display
$19$ \( T^{8} - 20 T^{7} + \cdots + 24025 \) Copy content Toggle raw display
$23$ \( T^{8} - 16 T^{7} + \cdots + 32761 \) Copy content Toggle raw display
$29$ \( T^{8} - 13 T^{7} + \cdots + 32041 \) Copy content Toggle raw display
$31$ \( T^{8} + 13 T^{7} + \cdots + 923521 \) Copy content Toggle raw display
$37$ \( T^{8} - 14 T^{7} + \cdots + 3798601 \) Copy content Toggle raw display
$41$ \( T^{8} + 37 T^{7} + \cdots + 2247001 \) Copy content Toggle raw display
$43$ \( T^{8} + 16 T^{7} + \cdots + 32761 \) Copy content Toggle raw display
$47$ \( T^{8} - 12 T^{7} + \cdots + 77841 \) Copy content Toggle raw display
$53$ \( T^{8} - 32 T^{7} + \cdots + 22801 \) Copy content Toggle raw display
$59$ \( T^{8} - T^{7} + 85 T^{6} + \cdots + 1 \) Copy content Toggle raw display
$61$ \( (T^{4} - 17 T^{3} + \cdots - 269)^{2} \) Copy content Toggle raw display
$67$ \( T^{8} - 7 T^{7} + \cdots + 14641 \) Copy content Toggle raw display
$71$ \( T^{8} - 14 T^{7} + \cdots + 7612081 \) Copy content Toggle raw display
$73$ \( T^{8} + 73 T^{7} + \cdots + 3243601 \) Copy content Toggle raw display
$79$ \( T^{8} - T^{7} + \cdots + 44521 \) Copy content Toggle raw display
$83$ \( T^{8} + \cdots + 1073283121 \) Copy content Toggle raw display
$89$ \( T^{8} + 20 T^{7} + \cdots + 1452025 \) Copy content Toggle raw display
$97$ \( T^{8} + 7 T^{7} + \cdots + 212547241 \) Copy content Toggle raw display
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