Properties

Label 310.2.q.a
Level $310$
Weight $2$
Character orbit 310.q
Analytic conductor $2.475$
Analytic rank $1$
Dimension $8$
CM no
Inner twists $2$

Related objects

Downloads

Learn more

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: \(1\)
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.

\(f(q)\) \(=\) \( q + \zeta_{15}^{3} q^{2} + (\zeta_{15}^{7} + \zeta_{15}^{4} + \cdots - 2) q^{3}+ \cdots + ( - \zeta_{15}^{7} - \zeta_{15}^{5} + \cdots + 1) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \zeta_{15}^{3} q^{2} + (\zeta_{15}^{7} + \zeta_{15}^{4} + \cdots - 2) q^{3}+ \cdots + ( - 7 \zeta_{15}^{7} + 14 \zeta_{15}^{6} + \cdots + 8) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 2 q^{2} - 8 q^{3} - 2 q^{4} - 4 q^{5} + 2 q^{6} - 16 q^{7} - 2 q^{8} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 2 q^{2} - 8 q^{3} - 2 q^{4} - 4 q^{5} + 2 q^{6} - 16 q^{7} - 2 q^{8} + q^{9} + q^{10} - 15 q^{11} + 7 q^{12} - 19 q^{13} + 14 q^{14} + q^{15} - 2 q^{16} - 24 q^{17} - 14 q^{18} - 16 q^{19} + q^{20} + 3 q^{21} + 15 q^{22} - 6 q^{23} + 7 q^{24} - 4 q^{25} - 4 q^{26} + 28 q^{27} - 6 q^{28} - 9 q^{29} - 4 q^{30} - 11 q^{31} + 8 q^{32} - 15 q^{33} + 6 q^{34} + 2 q^{35} - 4 q^{36} + 8 q^{37} - 6 q^{38} + 51 q^{39} + q^{40} - 33 q^{41} - 7 q^{42} - 30 q^{43} - 15 q^{44} + 16 q^{45} + 9 q^{46} + 6 q^{47} - 8 q^{48} + 39 q^{49} + q^{50} + 57 q^{51} + 26 q^{52} + 6 q^{53} + 28 q^{54} + 15 q^{55} - q^{56} + 8 q^{57} + 6 q^{58} + 3 q^{59} + q^{60} - 22 q^{61} - 16 q^{62} + 2 q^{63} - 2 q^{64} + 26 q^{65} + 15 q^{66} - 13 q^{67} + 21 q^{68} + 21 q^{69} + 2 q^{70} + 18 q^{71} + q^{72} - 19 q^{73} + 18 q^{74} + 7 q^{75} + 9 q^{76} + 75 q^{77} - 19 q^{78} + 3 q^{79} + q^{80} - 56 q^{81} - 3 q^{82} + 9 q^{83} + 8 q^{84} + 18 q^{85} - 10 q^{86} - 21 q^{87} + 12 q^{89} + q^{90} + 17 q^{91} - 6 q^{92} + 43 q^{93} + 6 q^{94} + 17 q^{95} - 8 q^{96} - 45 q^{97} - 11 q^{98}+O(q^{100}) \) 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 0.118034 + 1.12302i 0.309017 + 0.951057i −0.500000 0.866025i 0.564602 0.977920i −5.00973 1.06485i 0.309017 0.951057i 1.68720 0.358626i −0.104528 + 0.994522i
51.1 0.309017 + 0.951057i −2.11803 2.35232i −0.809017 + 0.587785i −0.500000 0.866025i 1.58268 2.74128i −0.00834687 0.0794152i −0.809017 0.587785i −0.733733 + 6.98100i 0.669131 0.743145i
71.1 0.309017 0.951057i −2.11803 0.450202i −0.809017 0.587785i −0.500000 0.866025i −1.08268 + 1.87525i −0.637551 + 0.283856i −0.809017 + 0.587785i 1.54275 + 0.686876i −0.978148 + 0.207912i
81.1 −0.809017 0.587785i 0.118034 + 0.0525521i 0.309017 + 0.951057i −0.500000 + 0.866025i −0.0646021 0.111894i −2.34437 + 2.60369i 0.309017 0.951057i −1.99622 2.21703i 0.913545 0.406737i
111.1 −0.809017 + 0.587785i 0.118034 0.0525521i 0.309017 0.951057i −0.500000 0.866025i −0.0646021 + 0.111894i −2.34437 2.60369i 0.309017 + 0.951057i −1.99622 + 2.21703i 0.913545 + 0.406737i
121.1 −0.809017 + 0.587785i 0.118034 1.12302i 0.309017 0.951057i −0.500000 + 0.866025i 0.564602 + 0.977920i −5.00973 + 1.06485i 0.309017 + 0.951057i 1.68720 + 0.358626i −0.104528 0.994522i
131.1 0.309017 + 0.951057i −2.11803 + 0.450202i −0.809017 + 0.587785i −0.500000 + 0.866025i −1.08268 1.87525i −0.637551 0.283856i −0.809017 0.587785i 1.54275 0.686876i −0.978148 0.207912i
231.1 0.309017 0.951057i −2.11803 + 2.35232i −0.809017 0.587785i −0.500000 + 0.866025i 1.58268 + 2.74128i −0.00834687 + 0.0794152i −0.809017 + 0.587785i −0.733733 6.98100i 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.a 8
31.g even 15 1 inner 310.2.q.a 8
31.g even 15 1 9610.2.a.bm 4
31.h odd 30 1 9610.2.a.bv 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
310.2.q.a 8 1.a even 1 1 trivial
310.2.q.a 8 31.g even 15 1 inner
9610.2.a.bm 4 31.g even 15 1
9610.2.a.bv 4 31.h odd 30 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{8} + 8T_{3}^{7} + 30T_{3}^{6} + 58T_{3}^{5} + 59T_{3}^{4} + 52T_{3}^{3} + 45T_{3}^{2} - 13T_{3} + 1 \) 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
$3$ \( T^{8} + 8 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$5$ \( (T^{2} + T + 1)^{4} \) Copy content Toggle raw display
$7$ \( T^{8} + 16 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$11$ \( T^{8} + 15 T^{7} + \cdots + 2025 \) Copy content Toggle raw display
$13$ \( T^{8} + 19 T^{7} + \cdots + 7921 \) Copy content Toggle raw display
$17$ \( T^{8} + 24 T^{7} + \cdots + 77841 \) Copy content Toggle raw display
$19$ \( T^{8} + 16 T^{7} + \cdots + 32041 \) Copy content Toggle raw display
$23$ \( T^{8} + 6 T^{7} + \cdots + 68121 \) Copy content Toggle raw display
$29$ \( T^{8} + 9 T^{7} + \cdots + 81 \) Copy content Toggle raw display
$31$ \( T^{8} + 11 T^{7} + \cdots + 923521 \) Copy content Toggle raw display
$37$ \( T^{8} - 8 T^{7} + \cdots + 1661521 \) Copy content Toggle raw display
$41$ \( T^{8} + 33 T^{7} + \cdots + 68121 \) Copy content Toggle raw display
$43$ \( T^{8} + 30 T^{7} + \cdots + 87025 \) Copy content Toggle raw display
$47$ \( T^{8} - 6 T^{7} + \cdots + 68121 \) Copy content Toggle raw display
$53$ \( T^{8} - 6 T^{7} + \cdots + 281961 \) Copy content Toggle raw display
$59$ \( T^{8} - 3 T^{7} + \cdots + 68121 \) Copy content Toggle raw display
$61$ \( (T^{4} + 11 T^{3} + \cdots - 899)^{2} \) Copy content Toggle raw display
$67$ \( T^{8} + 13 T^{7} + \cdots + 3798601 \) Copy content Toggle raw display
$71$ \( T^{8} - 18 T^{7} + \cdots + 301401 \) Copy content Toggle raw display
$73$ \( T^{8} + 19 T^{7} + \cdots + 1371241 \) Copy content Toggle raw display
$79$ \( T^{8} - 3 T^{7} + \cdots + 516961 \) Copy content Toggle raw display
$83$ \( T^{8} - 9 T^{7} + \cdots + 29062881 \) Copy content Toggle raw display
$89$ \( T^{8} - 12 T^{7} + \cdots + 10439361 \) Copy content Toggle raw display
$97$ \( T^{8} + 45 T^{7} + \cdots + 819025 \) Copy content Toggle raw display
show more
show less