Properties

Label 375.3.c.a
Level $375$
Weight $3$
Character orbit 375.c
Analytic conductor $10.218$
Analytic rank $0$
Dimension $8$
CM discriminant -15
Inner twists $4$

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Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [375,3,Mod(251,375)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(375, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 0]))
 
N = Newforms(chi, 3, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("375.251");
 
S:= CuspForms(chi, 3);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 375 = 3 \cdot 5^{3} \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 375.c (of order \(2\), degree \(1\), 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: \(10.2180099135\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.0.324000000.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} + 9x^{6} + 26x^{4} + 24x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 5^{4} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{U}(1)[D_{2}]$

$q$-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 basis \(1,\beta_1,\ldots,\beta_{7}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_{5} q^{2} + 3 \beta_1 q^{3} + ( - \beta_{4} - 6) q^{4} + 3 \beta_{2} q^{6} + (2 \beta_{7} + \beta_{6} + \cdots - 3 \beta_1) q^{8}+ \cdots - 9 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{5} q^{2} + 3 \beta_1 q^{3} + ( - \beta_{4} - 6) q^{4} + 3 \beta_{2} q^{6} + (2 \beta_{7} + \beta_{6} + \cdots - 3 \beta_1) q^{8}+ \cdots - 49 \beta_{5} q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 46 q^{4} + 6 q^{6} - 72 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 46 q^{4} + 6 q^{6} - 72 q^{9} + 150 q^{16} - 44 q^{19} + 42 q^{24} - 4 q^{31} - 28 q^{34} + 414 q^{36} - 68 q^{46} - 392 q^{49} - 84 q^{51} - 54 q^{54} + 236 q^{61} - 614 q^{64} - 204 q^{69} - 132 q^{76} + 196 q^{79} + 648 q^{81} + 1842 q^{94} - 1632 q^{96}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} + 9x^{6} + 26x^{4} + 24x^{2} + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( \nu^{5} + 5\nu^{3} + 5\nu \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( \nu^{6} + 4\nu^{4} - 4 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( 2\nu^{6} + 13\nu^{4} + 20\nu^{2} \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( 3\nu^{6} + 17\nu^{4} + 25\nu^{2} + 7 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( \nu^{7} + 8\nu^{5} + 21\nu^{3} + 20\nu \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( -2\nu^{7} - 13\nu^{5} - 22\nu^{3} - 5\nu \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( -2\nu^{7} - 15\nu^{5} - 37\nu^{3} - 30\nu \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{7} + 2\beta_{5} - \beta_1 ) / 5 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{4} - \beta_{3} - \beta_{2} - 11 ) / 5 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -4\beta_{7} + \beta_{6} - 6\beta_{5} + \beta_1 ) / 5 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -4\beta_{4} + 5\beta_{3} + 2\beta_{2} + 36 ) / 5 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( 3\beta_{7} - \beta_{6} + 4\beta_{5} + \beta_1 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( 16\beta_{4} - 20\beta_{3} - 3\beta_{2} - 124 ) / 5 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( -56\beta_{7} + 19\beta_{6} - 69\beta_{5} - 41\beta_1 ) / 5 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/375\mathbb{Z}\right)^\times\).

\(n\) \(127\) \(251\)
\(\chi(n)\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
251.1
0.209057i
1.82709i
1.33826i
1.95630i
1.95630i
1.33826i
1.82709i
0.209057i
3.99244i 3.00000i −11.9396 0 −11.9773 0 31.6984i −9.00000 0
251.2 3.37441i 3.00000i −7.38664 0 10.1232 0 11.4279i −9.00000 0
251.3 3.08550i 3.00000i −5.52031 0 9.25650 0 4.69091i −9.00000 0
251.4 1.46747i 3.00000i 1.84655 0 −4.40240 0 8.57960i −9.00000 0
251.5 1.46747i 3.00000i 1.84655 0 −4.40240 0 8.57960i −9.00000 0
251.6 3.08550i 3.00000i −5.52031 0 9.25650 0 4.69091i −9.00000 0
251.7 3.37441i 3.00000i −7.38664 0 10.1232 0 11.4279i −9.00000 0
251.8 3.99244i 3.00000i −11.9396 0 −11.9773 0 31.6984i −9.00000 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 251.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
15.d odd 2 1 CM by \(\Q(\sqrt{-15}) \)
3.b odd 2 1 inner
5.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 375.3.c.a 8
3.b odd 2 1 inner 375.3.c.a 8
5.b even 2 1 inner 375.3.c.a 8
5.c odd 4 1 375.3.d.a 4
5.c odd 4 1 375.3.d.b 4
15.d odd 2 1 CM 375.3.c.a 8
15.e even 4 1 375.3.d.a 4
15.e even 4 1 375.3.d.b 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
375.3.c.a 8 1.a even 1 1 trivial
375.3.c.a 8 3.b odd 2 1 inner
375.3.c.a 8 5.b even 2 1 inner
375.3.c.a 8 15.d odd 2 1 CM
375.3.d.a 4 5.c odd 4 1
375.3.d.a 4 15.e even 4 1
375.3.d.b 4 5.c odd 4 1
375.3.d.b 4 15.e even 4 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{8} + 39T_{2}^{6} + 521T_{2}^{4} + 2679T_{2}^{2} + 3721 \) acting on \(S_{3}^{\mathrm{new}}(375, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} + 39 T^{6} + \cdots + 3721 \) Copy content Toggle raw display
$3$ \( (T^{2} + 9)^{4} \) Copy content Toggle raw display
$5$ \( T^{8} \) Copy content Toggle raw display
$7$ \( T^{8} \) Copy content Toggle raw display
$11$ \( T^{8} \) Copy content Toggle raw display
$13$ \( T^{8} \) Copy content Toggle raw display
$17$ \( T^{8} + \cdots + 29860185601 \) Copy content Toggle raw display
$19$ \( (T^{4} + 22 T^{3} + \cdots + 12241)^{2} \) Copy content Toggle raw display
$23$ \( T^{8} + \cdots + 103734882241 \) Copy content Toggle raw display
$29$ \( T^{8} \) Copy content Toggle raw display
$31$ \( (T^{4} + 2 T^{3} + \cdots + 4598401)^{2} \) Copy content Toggle raw display
$37$ \( T^{8} \) Copy content Toggle raw display
$41$ \( T^{8} \) Copy content Toggle raw display
$43$ \( T^{8} \) Copy content Toggle raw display
$47$ \( T^{8} + \cdots + 496042028544001 \) Copy content Toggle raw display
$53$ \( T^{8} + \cdots + 94548377512801 \) Copy content Toggle raw display
$59$ \( T^{8} \) Copy content Toggle raw display
$61$ \( (T^{4} - 118 T^{3} + \cdots + 4050961)^{2} \) 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
$79$ \( (T^{4} - 98 T^{3} + \cdots - 12705599)^{2} \) Copy content Toggle raw display
$83$ \( T^{8} + \cdots + 294374967854881 \) 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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