Properties

Label 2375.1.o.b
Level $2375$
Weight $1$
Character orbit 2375.o
Analytic conductor $1.185$
Analytic rank $0$
Dimension $8$
Projective image $D_{10}$
CM discriminant -19
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2375,1,Mod(151,2375)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2375, base_ring=CyclotomicField(10))
 
chi = DirichletCharacter(H, H._module([4, 5]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2375.151");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2375 = 5^{3} \cdot 19 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 2375.o (of order \(10\), degree \(4\), not 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: \(1.18527940500\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(2\) over \(\Q(\zeta_{10})\)
Coefficient field: \(\Q(\zeta_{20})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - x^{6} + x^{4} - x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 5 \)
Twist minimal: no (minimal twist has level 475)
Projective image: \(D_{10}\)
Projective field: Galois closure of 10.0.1889113616943359375.4

$q$-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.

\(f(q)\) \(=\) \( q - \zeta_{20}^{2} q^{4} + (\zeta_{20}^{9} - \zeta_{20}) q^{7} + \zeta_{20}^{4} q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q - \zeta_{20}^{2} q^{4} + (\zeta_{20}^{9} - \zeta_{20}) q^{7} + \zeta_{20}^{4} q^{9} + (\zeta_{20}^{2} - 1) q^{11} + \zeta_{20}^{4} q^{16} + ( - \zeta_{20}^{5} + \zeta_{20}) q^{17} - \zeta_{20}^{8} q^{19} + ( - \zeta_{20}^{7} - \zeta_{20}^{5}) q^{23} + (\zeta_{20}^{3} + \zeta_{20}) q^{28} - \zeta_{20}^{6} q^{36} + ( - \zeta_{20}^{7} + \zeta_{20}^{3}) q^{43} + ( - \zeta_{20}^{4} + \zeta_{20}^{2}) q^{44} + ( - \zeta_{20}^{8} + \zeta_{20}^{2} + 1) q^{49} + ( - \zeta_{20}^{8} - \zeta_{20}^{4}) q^{61} + ( - \zeta_{20}^{5} - \zeta_{20}^{3}) q^{63} - \zeta_{20}^{6} q^{64} + (\zeta_{20}^{7} - \zeta_{20}^{3}) q^{68} - q^{76} + ( - \zeta_{20}^{9} - \zeta_{20}^{3} - \zeta_{20}) q^{77} + \zeta_{20}^{8} q^{81} + (\zeta_{20}^{5} - \zeta_{20}) q^{83} + (\zeta_{20}^{9} + \zeta_{20}^{7}) q^{92} + (\zeta_{20}^{6} - \zeta_{20}^{4}) q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 2 q^{4} - 2 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 2 q^{4} - 2 q^{9} - 6 q^{11} - 2 q^{16} + 2 q^{19} - 2 q^{36} + 4 q^{44} + 12 q^{49} + 4 q^{61} - 2 q^{64} - 8 q^{76} - 2 q^{81} + 4 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2375\mathbb{Z}\right)^\times\).

\(n\) \(876\) \(1502\)
\(\chi(n)\) \(-1\) \(-\zeta_{20}^{2}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
151.1
0.951057 0.309017i
−0.951057 + 0.309017i
0.951057 + 0.309017i
−0.951057 0.309017i
0.587785 0.809017i
−0.587785 + 0.809017i
0.587785 + 0.809017i
−0.587785 0.809017i
0 0 −0.809017 + 0.587785i 0 0 −1.90211 0 0.309017 0.951057i 0
151.2 0 0 −0.809017 + 0.587785i 0 0 1.90211 0 0.309017 0.951057i 0
1101.1 0 0 −0.809017 0.587785i 0 0 −1.90211 0 0.309017 + 0.951057i 0
1101.2 0 0 −0.809017 0.587785i 0 0 1.90211 0 0.309017 + 0.951057i 0
1576.1 0 0 0.309017 + 0.951057i 0 0 −1.17557 0 −0.809017 + 0.587785i 0
1576.2 0 0 0.309017 + 0.951057i 0 0 1.17557 0 −0.809017 + 0.587785i 0
2051.1 0 0 0.309017 0.951057i 0 0 −1.17557 0 −0.809017 0.587785i 0
2051.2 0 0 0.309017 0.951057i 0 0 1.17557 0 −0.809017 0.587785i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 151.2
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
19.b odd 2 1 CM by \(\Q(\sqrt{-19}) \)
5.b even 2 1 inner
25.d even 5 1 inner
25.e even 10 1 inner
95.d odd 2 1 inner
475.m odd 10 1 inner
475.o odd 10 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2375.1.o.b 8
5.b even 2 1 inner 2375.1.o.b 8
5.c odd 4 1 475.1.m.a 4
5.c odd 4 1 2375.1.m.a 4
19.b odd 2 1 CM 2375.1.o.b 8
25.d even 5 1 inner 2375.1.o.b 8
25.e even 10 1 inner 2375.1.o.b 8
25.f odd 20 1 475.1.m.a 4
25.f odd 20 1 2375.1.m.a 4
95.d odd 2 1 inner 2375.1.o.b 8
95.g even 4 1 475.1.m.a 4
95.g even 4 1 2375.1.m.a 4
475.m odd 10 1 inner 2375.1.o.b 8
475.o odd 10 1 inner 2375.1.o.b 8
475.v even 20 1 475.1.m.a 4
475.v even 20 1 2375.1.m.a 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
475.1.m.a 4 5.c odd 4 1
475.1.m.a 4 25.f odd 20 1
475.1.m.a 4 95.g even 4 1
475.1.m.a 4 475.v even 20 1
2375.1.m.a 4 5.c odd 4 1
2375.1.m.a 4 25.f odd 20 1
2375.1.m.a 4 95.g even 4 1
2375.1.m.a 4 475.v even 20 1
2375.1.o.b 8 1.a even 1 1 trivial
2375.1.o.b 8 5.b even 2 1 inner
2375.1.o.b 8 19.b odd 2 1 CM
2375.1.o.b 8 25.d even 5 1 inner
2375.1.o.b 8 25.e even 10 1 inner
2375.1.o.b 8 95.d odd 2 1 inner
2375.1.o.b 8 475.m odd 10 1 inner
2375.1.o.b 8 475.o odd 10 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{7}^{4} - 5T_{7}^{2} + 5 \) acting on \(S_{1}^{\mathrm{new}}(2375, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( T^{8} \) Copy content Toggle raw display
$7$ \( (T^{4} - 5 T^{2} + 5)^{2} \) Copy content Toggle raw display
$11$ \( (T^{4} + 3 T^{3} + 4 T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$13$ \( T^{8} \) Copy content Toggle raw display
$17$ \( T^{8} + 5 T^{6} + \cdots + 25 \) Copy content Toggle raw display
$19$ \( (T^{4} - T^{3} + T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$23$ \( T^{8} + 5 T^{6} + \cdots + 25 \) Copy content Toggle raw display
$29$ \( T^{8} \) Copy content Toggle raw display
$31$ \( T^{8} \) Copy content Toggle raw display
$37$ \( T^{8} \) Copy content Toggle raw display
$41$ \( T^{8} \) Copy content Toggle raw display
$43$ \( (T^{4} - 5 T^{2} + 5)^{2} \) Copy content Toggle raw display
$47$ \( T^{8} \) Copy content Toggle raw display
$53$ \( T^{8} \) Copy content Toggle raw display
$59$ \( T^{8} \) Copy content Toggle raw display
$61$ \( (T^{4} - 2 T^{3} + 4 T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$67$ \( T^{8} \) Copy content Toggle raw display
$71$ \( T^{8} \) Copy content Toggle raw display
$73$ \( T^{8} \) Copy content Toggle raw display
$79$ \( T^{8} \) Copy content Toggle raw display
$83$ \( T^{8} + 5 T^{6} + \cdots + 25 \) Copy content Toggle raw display
$89$ \( T^{8} \) Copy content Toggle raw display
$97$ \( T^{8} \) Copy content Toggle raw display
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