Properties

Label 3700.1.cu.b
Level $3700$
Weight $1$
Character orbit 3700.cu
Analytic conductor $1.847$
Analytic rank $0$
Dimension $8$
Projective image $D_{15}$
CM discriminant -4
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [3700,1,Mod(211,3700)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(3700, base_ring=CyclotomicField(30))
 
chi = DirichletCharacter(H, H._module([15, 24, 10]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("3700.211");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 3700 = 2^{2} \cdot 5^{2} \cdot 37 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 3700.cu (of order \(30\), 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: \(1.84654054674\)
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: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{15}\)
Projective field: Galois closure of \(\mathbb{Q}[x]/(x^{15} - \cdots)\)

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 

The \(q\)-expansion and trace form are shown below.

\(f(q)\) \(=\) \( q + \zeta_{30}^{14} q^{2} - \zeta_{30}^{13} q^{4} + \zeta_{30}^{2} q^{5} + \zeta_{30}^{12} q^{8} - \zeta_{30}^{11} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q + \zeta_{30}^{14} q^{2} - \zeta_{30}^{13} q^{4} + \zeta_{30}^{2} q^{5} + \zeta_{30}^{12} q^{8} - \zeta_{30}^{11} q^{9} - \zeta_{30} q^{10} + ( - \zeta_{30}^{13} + \zeta_{30}^{4}) q^{13} - \zeta_{30}^{11} q^{16} + ( - \zeta_{30}^{13} + \zeta_{30}^{6}) q^{17} + \zeta_{30}^{10} q^{18} + q^{20} + \zeta_{30}^{4} q^{25} + (\zeta_{30}^{12} - \zeta_{30}^{3}) q^{26} + (\zeta_{30}^{14} - \zeta_{30}^{7}) q^{29} + \zeta_{30}^{10} q^{32} + (\zeta_{30}^{12} - \zeta_{30}^{5}) q^{34} - \zeta_{30}^{9} q^{36} + \zeta_{30}^{10} q^{37} + \zeta_{30}^{14} q^{40} + (\zeta_{30}^{14} - \zeta_{30}^{3}) q^{41} - \zeta_{30}^{13} q^{45} - \zeta_{30}^{5} q^{49} - \zeta_{30}^{3} q^{50} + ( - \zeta_{30}^{11} + \zeta_{30}^{2}) q^{52} + ( - \zeta_{30}^{11} - \zeta_{30}^{5}) q^{53} + ( - \zeta_{30}^{13} + \zeta_{30}^{6}) q^{58} + (\zeta_{30}^{6} + \zeta_{30}^{2}) q^{61} - \zeta_{30}^{9} q^{64} + (\zeta_{30}^{6} + 1) q^{65} + ( - \zeta_{30}^{11} + \zeta_{30}^{4}) q^{68} + \zeta_{30}^{8} q^{72} + (\zeta_{30}^{12} + \zeta_{30}^{6}) q^{73} - \zeta_{30}^{9} q^{74} - \zeta_{30}^{13} q^{80} - \zeta_{30}^{7} q^{81} + ( - \zeta_{30}^{13} + \zeta_{30}^{2}) q^{82} + (\zeta_{30}^{8} + 1) q^{85} + (\zeta_{30}^{10} - \zeta_{30}^{3}) q^{89} + \zeta_{30}^{12} q^{90} + (\zeta_{30}^{14} - \zeta_{30}^{7}) q^{97} + \zeta_{30}^{4} q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + q^{2} + q^{4} + q^{5} - 2 q^{8} + q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + q^{2} + q^{4} + q^{5} - 2 q^{8} + q^{9} + q^{10} + 2 q^{13} + q^{16} - q^{17} - 4 q^{18} + 8 q^{20} + q^{25} - 4 q^{26} + 2 q^{29} - 4 q^{32} - 6 q^{34} - 2 q^{36} - 4 q^{37} + q^{40} - q^{41} + q^{45} - 4 q^{49} - 2 q^{50} + 2 q^{52} - 3 q^{53} - q^{58} - q^{61} - 2 q^{64} + 6 q^{65} + 2 q^{68} + q^{72} - 4 q^{73} - 2 q^{74} + q^{80} + q^{81} + 2 q^{82} + 9 q^{85} - 6 q^{89} - 2 q^{90} + 2 q^{97} + q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/3700\mathbb{Z}\right)^\times\).

\(n\) \(1001\) \(1777\) \(1851\)
\(\chi(n)\) \(\zeta_{30}^{10}\) \(-\zeta_{30}^{3}\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
211.1
0.913545 0.406737i
0.913545 + 0.406737i
−0.978148 + 0.207912i
−0.104528 0.994522i
0.669131 0.743145i
0.669131 + 0.743145i
−0.104528 + 0.994522i
−0.978148 0.207912i
0.913545 + 0.406737i 0 0.669131 + 0.743145i 0.669131 0.743145i 0 0 0.309017 + 0.951057i −0.104528 + 0.994522i 0.913545 0.406737i
491.1 0.913545 0.406737i 0 0.669131 0.743145i 0.669131 + 0.743145i 0 0 0.309017 0.951057i −0.104528 0.994522i 0.913545 + 0.406737i
1231.1 −0.978148 0.207912i 0 0.913545 + 0.406737i 0.913545 0.406737i 0 0 −0.809017 0.587785i 0.669131 + 0.743145i −0.978148 + 0.207912i
1691.1 −0.104528 + 0.994522i 0 −0.978148 0.207912i −0.978148 + 0.207912i 0 0 0.309017 0.951057i 0.913545 + 0.406737i −0.104528 0.994522i
1971.1 0.669131 + 0.743145i 0 −0.104528 + 0.994522i −0.104528 0.994522i 0 0 −0.809017 + 0.587785i −0.978148 0.207912i 0.669131 0.743145i
2431.1 0.669131 0.743145i 0 −0.104528 0.994522i −0.104528 + 0.994522i 0 0 −0.809017 0.587785i −0.978148 + 0.207912i 0.669131 + 0.743145i
2711.1 −0.104528 0.994522i 0 −0.978148 + 0.207912i −0.978148 0.207912i 0 0 0.309017 + 0.951057i 0.913545 0.406737i −0.104528 + 0.994522i
3171.1 −0.978148 + 0.207912i 0 0.913545 0.406737i 0.913545 + 0.406737i 0 0 −0.809017 + 0.587785i 0.669131 0.743145i −0.978148 0.207912i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 211.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
4.b odd 2 1 CM by \(\Q(\sqrt{-1}) \)
925.z even 15 1 inner
3700.cu odd 30 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 3700.1.cu.b yes 8
4.b odd 2 1 CM 3700.1.cu.b yes 8
25.d even 5 1 3700.1.cu.a 8
37.c even 3 1 3700.1.cu.a 8
100.j odd 10 1 3700.1.cu.a 8
148.i odd 6 1 3700.1.cu.a 8
925.z even 15 1 inner 3700.1.cu.b yes 8
3700.cu odd 30 1 inner 3700.1.cu.b yes 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
3700.1.cu.a 8 25.d even 5 1
3700.1.cu.a 8 37.c even 3 1
3700.1.cu.a 8 100.j odd 10 1
3700.1.cu.a 8 148.i odd 6 1
3700.1.cu.b yes 8 1.a even 1 1 trivial
3700.1.cu.b yes 8 4.b odd 2 1 CM
3700.1.cu.b yes 8 925.z even 15 1 inner
3700.1.cu.b yes 8 3700.cu odd 30 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{17}^{8} + T_{17}^{7} + 4T_{17}^{5} - 6T_{17}^{4} - 11T_{17}^{3} + 20T_{17}^{2} + 6T_{17} + 1 \) acting on \(S_{1}^{\mathrm{new}}(3700, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} - T^{7} + T^{5} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( T^{8} - T^{7} + T^{5} + \cdots + 1 \) Copy content Toggle raw display
$7$ \( T^{8} \) Copy content Toggle raw display
$11$ \( T^{8} \) Copy content Toggle raw display
$13$ \( T^{8} - 2 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$17$ \( T^{8} + T^{7} + 4 T^{5} + \cdots + 1 \) Copy content Toggle raw display
$19$ \( T^{8} \) Copy content Toggle raw display
$23$ \( T^{8} \) Copy content Toggle raw display
$29$ \( T^{8} - 2 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$31$ \( T^{8} \) Copy content Toggle raw display
$37$ \( (T^{2} + T + 1)^{4} \) Copy content Toggle raw display
$41$ \( T^{8} + T^{7} + 4 T^{5} + \cdots + 1 \) Copy content Toggle raw display
$43$ \( T^{8} \) Copy content Toggle raw display
$47$ \( T^{8} \) Copy content Toggle raw display
$53$ \( T^{8} + 3 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$59$ \( T^{8} \) Copy content Toggle raw display
$61$ \( T^{8} + T^{7} + 4 T^{5} + \cdots + 1 \) Copy content Toggle raw display
$67$ \( T^{8} \) Copy content Toggle raw display
$71$ \( T^{8} \) Copy content Toggle raw display
$73$ \( (T^{4} + 2 T^{3} + 4 T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$79$ \( T^{8} \) Copy content Toggle raw display
$83$ \( T^{8} \) Copy content Toggle raw display
$89$ \( T^{8} + 6 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$97$ \( T^{8} - 2 T^{7} + \cdots + 1 \) Copy content Toggle raw display
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