Properties

Label 310.2.q.b
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: \(\Z[a_1, a_2, a_3]\)
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.

\(f(q)\) \(=\) \( q + \zeta_{15}^{3} q^{2} + (\zeta_{15}^{5} - \zeta_{15}^{4} + 1) q^{3} + \zeta_{15}^{6} q^{4} + \zeta_{15}^{5} q^{5} + ( - \zeta_{15}^{5} + \zeta_{15}^{4} + \cdots - 1) q^{6}+ \cdots + (2 \zeta_{15}^{7} - \zeta_{15}^{6} + \cdots - 2) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \zeta_{15}^{3} q^{2} + (\zeta_{15}^{5} - \zeta_{15}^{4} + 1) q^{3} + \zeta_{15}^{6} q^{4} + \zeta_{15}^{5} q^{5} + ( - \zeta_{15}^{5} + \zeta_{15}^{4} + \cdots - 1) q^{6}+ \cdots + (3 \zeta_{15}^{7} - 6 \zeta_{15}^{6} + \cdots - 7) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 2 q^{2} + 3 q^{3} - 2 q^{4} - 4 q^{5} - 2 q^{6} + 2 q^{7} - 2 q^{8} - 4 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 2 q^{2} + 3 q^{3} - 2 q^{4} - 4 q^{5} - 2 q^{6} + 2 q^{7} - 2 q^{8} - 4 q^{9} + q^{10} + 17 q^{11} + 3 q^{12} + 10 q^{13} + 2 q^{14} - 6 q^{15} - 2 q^{16} + 8 q^{17} + q^{18} - 8 q^{19} + q^{20} + q^{21} - 28 q^{22} - 2 q^{23} - 2 q^{24} - 4 q^{25} + 5 q^{26} - 18 q^{27} + 7 q^{28} + 11 q^{29} + 4 q^{30} - 14 q^{31} + 8 q^{32} + 3 q^{33} - 7 q^{34} - 4 q^{35} + 6 q^{36} + 6 q^{37} + 22 q^{38} - 5 q^{39} + q^{40} - 4 q^{41} - 9 q^{42} + 14 q^{43} + 2 q^{44} - 4 q^{45} + 18 q^{46} + 6 q^{47} - 2 q^{48} - 23 q^{49} + q^{50} + 14 q^{51} - 20 q^{52} - 8 q^{53} - 18 q^{54} - 28 q^{55} - 3 q^{56} + q^{57} + 11 q^{58} + 8 q^{59} - 6 q^{60} + 28 q^{61} + 31 q^{62} - 14 q^{63} - 2 q^{64} - 20 q^{65} - 7 q^{66} + 2 q^{67} + 13 q^{68} - 7 q^{69} - 4 q^{70} + 19 q^{71} + q^{72} + 12 q^{73} - 19 q^{74} + 3 q^{75} - 8 q^{76} + 17 q^{77} + 15 q^{78} - 39 q^{79} + q^{80} - 16 q^{81} - 4 q^{82} + 50 q^{83} + 6 q^{84} - q^{85} - 16 q^{86} + 11 q^{87} + 7 q^{88} - 12 q^{89} + q^{90} - 20 q^{91} - 32 q^{92} - 11 q^{93} - 24 q^{94} + q^{95} + 3 q^{96} + 42 q^{97} + 17 q^{98} - 18 q^{99}+O(q^{100}) \) 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 −0.169131 1.60917i 0.309017 + 0.951057i −0.500000 0.866025i −0.809017 + 1.40126i 0.809017 + 0.171962i 0.309017 0.951057i 0.373619 0.0794152i −0.104528 + 0.994522i
51.1 0.309017 + 0.951057i −0.413545 0.459289i −0.809017 + 0.587785i −0.500000 0.866025i 0.309017 0.535233i −0.309017 2.94010i −0.809017 0.587785i 0.273659 2.60369i 0.669131 0.743145i
71.1 0.309017 0.951057i 0.604528 + 0.128496i −0.809017 0.587785i −0.500000 0.866025i 0.309017 0.535233i −0.309017 + 0.137583i −0.809017 + 0.587785i −2.39169 1.06485i −0.978148 + 0.207912i
81.1 −0.809017 0.587785i 1.47815 + 0.658114i 0.309017 + 0.951057i −0.500000 + 0.866025i −0.809017 1.40126i 0.809017 0.898504i 0.309017 0.951057i −0.255585 0.283856i 0.913545 0.406737i
111.1 −0.809017 + 0.587785i 1.47815 0.658114i 0.309017 0.951057i −0.500000 0.866025i −0.809017 + 1.40126i 0.809017 + 0.898504i 0.309017 + 0.951057i −0.255585 + 0.283856i 0.913545 + 0.406737i
121.1 −0.809017 + 0.587785i −0.169131 + 1.60917i 0.309017 0.951057i −0.500000 + 0.866025i −0.809017 1.40126i 0.809017 0.171962i 0.309017 + 0.951057i 0.373619 + 0.0794152i −0.104528 0.994522i
131.1 0.309017 + 0.951057i 0.604528 0.128496i −0.809017 + 0.587785i −0.500000 + 0.866025i 0.309017 + 0.535233i −0.309017 0.137583i −0.809017 0.587785i −2.39169 + 1.06485i −0.978148 0.207912i
231.1 0.309017 0.951057i −0.413545 + 0.459289i −0.809017 0.587785i −0.500000 + 0.866025i 0.309017 + 0.535233i −0.309017 + 2.94010i −0.809017 + 0.587785i 0.273659 + 2.60369i 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.b 8
31.g even 15 1 inner 310.2.q.b 8
31.g even 15 1 9610.2.a.bw 4
31.h odd 30 1 9610.2.a.bn 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
310.2.q.b 8 1.a even 1 1 trivial
310.2.q.b 8 31.g even 15 1 inner
9610.2.a.bn 4 31.h odd 30 1
9610.2.a.bw 4 31.g even 15 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{8} - 3T_{3}^{7} + 5T_{3}^{6} - 8T_{3}^{5} + 9T_{3}^{4} - 2T_{3}^{3} - 2T_{3} + 1 \) 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
$3$ \( T^{8} - 3 T^{7} + \cdots + 1 \) 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
$11$ \( T^{8} - 17 T^{7} + \cdots + 3481 \) Copy content Toggle raw display
$13$ \( T^{8} - 10 T^{7} + \cdots + 25 \) Copy content Toggle raw display
$17$ \( T^{8} - 8 T^{7} + \cdots + 961 \) Copy content Toggle raw display
$19$ \( T^{8} + 8 T^{7} + \cdots + 151321 \) Copy content Toggle raw display
$23$ \( T^{8} + 2 T^{7} + \cdots + 72361 \) Copy content Toggle raw display
$29$ \( T^{8} - 11 T^{7} + \cdots + 477481 \) Copy content Toggle raw display
$31$ \( T^{8} + 14 T^{7} + \cdots + 923521 \) Copy content Toggle raw display
$37$ \( T^{8} - 6 T^{7} + \cdots + 961 \) Copy content Toggle raw display
$41$ \( T^{8} + 4 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$43$ \( T^{8} - 14 T^{7} + \cdots + 7921 \) Copy content Toggle raw display
$47$ \( T^{8} - 6 T^{7} + \cdots + 68121 \) Copy content Toggle raw display
$53$ \( T^{8} + 8 T^{7} + \cdots + 12952801 \) Copy content Toggle raw display
$59$ \( T^{8} - 8 T^{7} + \cdots + 256 \) Copy content Toggle raw display
$61$ \( (T^{4} - 14 T^{3} + \cdots - 599)^{2} \) Copy content Toggle raw display
$67$ \( T^{8} - 2 T^{7} + \cdots + 256 \) Copy content Toggle raw display
$71$ \( T^{8} - 19 T^{7} + \cdots + 57121 \) Copy content Toggle raw display
$73$ \( T^{8} - 12 T^{7} + \cdots + 17131321 \) Copy content Toggle raw display
$79$ \( T^{8} + 39 T^{7} + \cdots + 16410601 \) Copy content Toggle raw display
$83$ \( T^{8} - 50 T^{7} + \cdots + 160000 \) Copy content Toggle raw display
$89$ \( T^{8} + 12 T^{7} + \cdots + 3345241 \) Copy content Toggle raw display
$97$ \( T^{8} - 42 T^{7} + \cdots + 128881 \) Copy content Toggle raw display
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