Properties

Label 62.2.g.b
Level $62$
Weight $2$
Character orbit 62.g
Analytic conductor $0.495$
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] = [62,2,Mod(7,62)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(62, base_ring=CyclotomicField(30))
 
chi = DirichletCharacter(H, H._module([28]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("62.7");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 62 = 2 \cdot 31 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 62.g (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: \(0.495072492532\)
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.

\(f(q)\) \(=\) \( q - \zeta_{15}^{6} q^{2} + (\zeta_{15}^{7} - \zeta_{15}^{4} + \zeta_{15}) q^{3} + ( - \zeta_{15}^{7} - \zeta_{15}^{2}) q^{4} + ( - \zeta_{15}^{7} + \zeta_{15}^{6} + \cdots + 1) q^{5} + \cdots + ( - \zeta_{15}^{7} + 3 \zeta_{15}^{6} + \cdots + 1) q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q - \zeta_{15}^{6} q^{2} + (\zeta_{15}^{7} - \zeta_{15}^{4} + \zeta_{15}) q^{3} + ( - \zeta_{15}^{7} - \zeta_{15}^{2}) q^{4} + ( - \zeta_{15}^{7} + \zeta_{15}^{6} + \cdots + 1) q^{5} + \cdots + ( - 2 \zeta_{15}^{7} + 4 \zeta_{15}^{6} + \cdots - 5) q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 2 q^{2} + q^{3} - 2 q^{4} - 3 q^{5} - 6 q^{6} - 16 q^{7} + 2 q^{8} + 8 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + 2 q^{2} + q^{3} - 2 q^{4} - 3 q^{5} - 6 q^{6} - 16 q^{7} + 2 q^{8} + 8 q^{9} + 8 q^{10} + 3 q^{11} + q^{12} - 14 q^{14} - 4 q^{15} - 2 q^{16} - 2 q^{17} + 7 q^{18} + 3 q^{19} + 2 q^{20} - 31 q^{21} - 3 q^{22} + 15 q^{23} + 4 q^{24} + 9 q^{25} - 10 q^{26} + 10 q^{27} + 9 q^{28} + 13 q^{29} + 14 q^{30} - 11 q^{31} - 8 q^{32} - 6 q^{33} + 22 q^{34} + 24 q^{35} - 2 q^{36} + 8 q^{37} - 18 q^{38} - 30 q^{39} - 2 q^{40} + 13 q^{41} + 21 q^{42} - 7 q^{44} - 14 q^{45} + 5 q^{46} + 9 q^{47} - 4 q^{48} + 9 q^{49} - 9 q^{50} + 28 q^{51} - 51 q^{53} - 10 q^{54} + q^{55} + q^{56} + 18 q^{57} + 7 q^{58} - 18 q^{59} - 4 q^{60} - 20 q^{61} - 19 q^{62} - 14 q^{63} - 2 q^{64} + 10 q^{65} - 19 q^{66} - 18 q^{67} + 3 q^{68} + 35 q^{69} - 24 q^{70} + 7 q^{71} + 7 q^{72} - 13 q^{73} + 17 q^{74} - 36 q^{75} - 12 q^{76} + 11 q^{77} - 10 q^{78} + 9 q^{79} + 7 q^{80} + 16 q^{81} + 7 q^{82} + 6 q^{83} + 24 q^{84} - 17 q^{85} + 15 q^{86} + q^{87} + 7 q^{88} + 28 q^{89} + 19 q^{90} + 20 q^{91} - 20 q^{92} + 32 q^{93} + 6 q^{94} + 18 q^{95} - q^{96} + q^{97} + 11 q^{98} - 11 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/62\mathbb{Z}\right)^\times\).

\(n\) \(3\)
\(\chi(n)\) \(-1 + \zeta_{15} - \zeta_{15}^{3} + \zeta_{15}^{4} - \zeta_{15}^{5} + \zeta_{15}^{7}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
7.1
0.669131 0.743145i
0.669131 + 0.743145i
−0.104528 + 0.994522i
0.913545 0.406737i
−0.978148 + 0.207912i
−0.104528 0.994522i
−0.978148 0.207912i
0.913545 + 0.406737i
−0.309017 0.951057i 2.56082 0.544320i −0.809017 + 0.587785i −1.47815 + 2.56023i −1.30902 2.26728i −3.64728 1.62387i 0.809017 + 0.587785i 3.52090 1.56760i 2.89169 + 0.614648i
9.1 −0.309017 + 0.951057i 2.56082 + 0.544320i −0.809017 0.587785i −1.47815 2.56023i −1.30902 + 2.26728i −3.64728 + 1.62387i 0.809017 0.587785i 3.52090 + 1.56760i 2.89169 0.614648i
19.1 0.809017 + 0.587785i −0.348943 0.155360i 0.309017 + 0.951057i 0.413545 0.716282i −0.190983 0.330792i −0.981926 + 1.09054i −0.309017 + 0.951057i −1.90977 2.12101i 0.755585 0.336408i
41.1 0.809017 + 0.587785i 0.0399263 + 0.379874i 0.309017 + 0.951057i −0.604528 1.04707i −0.190983 + 0.330792i −3.01807 0.641511i −0.309017 + 0.951057i 2.79173 0.593401i 0.126381 1.20243i
45.1 −0.309017 + 0.951057i −1.75181 + 1.94558i −0.809017 0.587785i 0.169131 0.292943i −1.30902 2.26728i −0.352722 + 3.35592i 0.809017 0.587785i −0.402863 3.83299i 0.226341 + 0.251377i
49.1 0.809017 0.587785i −0.348943 + 0.155360i 0.309017 0.951057i 0.413545 + 0.716282i −0.190983 + 0.330792i −0.981926 1.09054i −0.309017 0.951057i −1.90977 + 2.12101i 0.755585 + 0.336408i
51.1 −0.309017 0.951057i −1.75181 1.94558i −0.809017 + 0.587785i 0.169131 + 0.292943i −1.30902 + 2.26728i −0.352722 3.35592i 0.809017 + 0.587785i −0.402863 + 3.83299i 0.226341 0.251377i
59.1 0.809017 0.587785i 0.0399263 0.379874i 0.309017 0.951057i −0.604528 + 1.04707i −0.190983 0.330792i −3.01807 + 0.641511i −0.309017 0.951057i 2.79173 + 0.593401i 0.126381 + 1.20243i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 7.1
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 62.2.g.b 8
3.b odd 2 1 558.2.ba.c 8
4.b odd 2 1 496.2.bg.b 8
31.g even 15 1 inner 62.2.g.b 8
31.g even 15 1 1922.2.a.h 4
31.h odd 30 1 1922.2.a.m 4
93.o odd 30 1 558.2.ba.c 8
124.n odd 30 1 496.2.bg.b 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
62.2.g.b 8 1.a even 1 1 trivial
62.2.g.b 8 31.g even 15 1 inner
496.2.bg.b 8 4.b odd 2 1
496.2.bg.b 8 124.n odd 30 1
558.2.ba.c 8 3.b odd 2 1
558.2.ba.c 8 93.o odd 30 1
1922.2.a.h 4 31.g even 15 1
1922.2.a.m 4 31.h odd 30 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{8} - T_{3}^{7} - 5T_{3}^{6} - 14T_{3}^{5} + 39T_{3}^{4} + 26T_{3}^{3} + 10T_{3}^{2} + 4T_{3} + 1 \) acting on \(S_{2}^{\mathrm{new}}(62, [\chi])\). 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
$3$ \( T^{8} - T^{7} - 5 T^{6} + \cdots + 1 \) Copy content Toggle raw display
$5$ \( T^{8} + 3 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$7$ \( T^{8} + 16 T^{7} + \cdots + 3721 \) Copy content Toggle raw display
$11$ \( T^{8} - 3 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$13$ \( T^{8} - 40 T^{6} + \cdots + 6400 \) Copy content Toggle raw display
$17$ \( T^{8} + 2 T^{7} + \cdots + 44521 \) Copy content Toggle raw display
$19$ \( T^{8} - 3 T^{7} + \cdots + 81 \) Copy content Toggle raw display
$23$ \( T^{8} - 15 T^{7} + \cdots + 24025 \) Copy content Toggle raw display
$29$ \( T^{8} - 13 T^{7} + \cdots + 14641 \) Copy content Toggle raw display
$31$ \( T^{8} + 11 T^{7} + \cdots + 923521 \) Copy content Toggle raw display
$37$ \( T^{8} - 8 T^{7} + \cdots + 961 \) Copy content Toggle raw display
$41$ \( T^{8} - 13 T^{7} + \cdots + 1104601 \) Copy content Toggle raw display
$43$ \( T^{8} + 30 T^{6} + \cdots + 7535025 \) Copy content Toggle raw display
$47$ \( T^{8} - 9 T^{7} + \cdots + 68121 \) Copy content Toggle raw display
$53$ \( T^{8} + 51 T^{7} + \cdots + 66601921 \) Copy content Toggle raw display
$59$ \( T^{8} + 18 T^{7} + \cdots + 77841 \) Copy content Toggle raw display
$61$ \( (T^{2} + 5 T - 95)^{4} \) Copy content Toggle raw display
$67$ \( T^{8} + 18 T^{7} + \cdots + 81 \) Copy content Toggle raw display
$71$ \( T^{8} - 7 T^{7} + \cdots + 3575881 \) Copy content Toggle raw display
$73$ \( T^{8} + 13 T^{7} + \cdots + 73441 \) Copy content Toggle raw display
$79$ \( T^{8} - 9 T^{7} + \cdots + 32251041 \) Copy content Toggle raw display
$83$ \( T^{8} - 6 T^{7} + \cdots + 81 \) Copy content Toggle raw display
$89$ \( T^{8} - 28 T^{7} + \cdots + 398161 \) Copy content Toggle raw display
$97$ \( T^{8} - T^{7} + \cdots + 841 \) Copy content Toggle raw display
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