Properties

Label 425.2.d.d
Level $425$
Weight $2$
Character orbit 425.d
Analytic conductor $3.394$
Analytic rank $0$
Dimension $8$
Inner twists $4$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [425,2,Mod(101,425)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("425.101"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(425, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 1])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 425 = 5^{2} \cdot 17 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 425.d (of order \(2\), degree \(1\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [8,0,0,16,0,0,0,0,0] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(9)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(3.39364208590\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.0.10070523904.3
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} + 16x^{6} + 38x^{4} + 16x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 2^{2}\cdot 3^{2} \)
Twist minimal: no (minimal twist has level 85)
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content 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.

\(f(q)\) \(=\) \( q - \beta_1 q^{2} + \beta_{6} q^{3} + ( - \beta_{3} + 2) q^{4} + (\beta_{7} + \beta_{5}) q^{6} + \beta_{2} q^{7} + (\beta_{4} - 2 \beta_1) q^{8} + \beta_{3} q^{9} - \beta_{5} q^{11} + (4 \beta_{6} - \beta_{2}) q^{12}+ \cdots + (3 \beta_{7} + \beta_{5}) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 16 q^{4} + 24 q^{16} - 16 q^{19} + 8 q^{21} - 24 q^{26} - 32 q^{34} - 56 q^{36} + 16 q^{49} - 40 q^{51} - 48 q^{59} + 48 q^{64} + 88 q^{66} - 8 q^{69} - 32 q^{76} - 16 q^{81} + 72 q^{84} + 24 q^{86}+ \cdots + 104 q^{94}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} + 16x^{6} + 38x^{4} + 16x^{2} + 1 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{6} + 17\nu^{4} + 55\nu^{2} + 35 ) / 12 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( \nu^{7} + 17\nu^{5} + 55\nu^{3} + 71\nu ) / 12 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( -\nu^{6} - 16\nu^{4} - 37\nu^{2} - 8 ) / 2 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( -11\nu^{6} - 169\nu^{4} - 317\nu^{2} - 43 ) / 12 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 3\nu^{7} + 49\nu^{5} + 129\nu^{3} + 67\nu ) / 4 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -11\nu^{7} - 175\nu^{5} - 401\nu^{3} - 133\nu ) / 12 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 3\nu^{7} + 47\nu^{5} + 99\nu^{3} + 23\nu ) / 2 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( -\beta_{7} - 3\beta_{6} - 2\beta_{5} + 3\beta_{2} ) / 6 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -\beta_{4} + 3\beta_{3} + 7\beta _1 - 12 ) / 3 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( 19\beta_{7} + 51\beta_{6} + 26\beta_{5} - 15\beta_{2} ) / 6 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( 6\beta_{4} - 16\beta_{3} - 30\beta _1 + 45 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -269\beta_{7} - 699\beta_{6} - 334\beta_{5} + 159\beta_{2} ) / 6 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( -251\beta_{4} + 651\beta_{3} + 1181\beta _1 - 1740 ) / 3 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 3599\beta_{7} + 9291\beta_{6} + 4390\beta_{5} - 2019\beta_{2} ) / 6 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/425\mathbb{Z}\right)^\times\).

\(n\) \(52\) \(326\)
\(\chi(n)\) \(1\) \(-1\)

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.

Copy content comment:embeddings in the coefficient field
 
Copy content gp:mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
101.1
0.275076i
0.275076i
0.664092i
0.664092i
1.50582i
1.50582i
3.63536i
3.63536i
−2.57794 2.37608i 4.64575 0 6.12538i 1.53436i −6.82058 −2.64575 0
101.2 −2.57794 2.37608i 4.64575 0 6.12538i 1.53436i −6.82058 −2.64575 0
101.3 −1.16372 0.595188i −0.645751 0 0.692633i 2.76510i 3.07892 2.64575 0
101.4 −1.16372 0.595188i −0.645751 0 0.692633i 2.76510i 3.07892 2.64575 0
101.5 1.16372 0.595188i −0.645751 0 0.692633i 2.76510i −3.07892 2.64575 0
101.6 1.16372 0.595188i −0.645751 0 0.692633i 2.76510i −3.07892 2.64575 0
101.7 2.57794 2.37608i 4.64575 0 6.12538i 1.53436i 6.82058 −2.64575 0
101.8 2.57794 2.37608i 4.64575 0 6.12538i 1.53436i 6.82058 −2.64575 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 101.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
5.b even 2 1 inner
17.b even 2 1 inner
85.c even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 425.2.d.d 8
5.b even 2 1 inner 425.2.d.d 8
5.c odd 4 2 85.2.c.a 8
15.e even 4 2 765.2.d.c 8
17.b even 2 1 inner 425.2.d.d 8
17.c even 4 2 7225.2.a.bl 8
20.e even 4 2 1360.2.o.f 8
85.c even 2 1 inner 425.2.d.d 8
85.f odd 4 2 1445.2.b.b 8
85.g odd 4 2 85.2.c.a 8
85.i odd 4 2 1445.2.b.b 8
85.j even 4 2 7225.2.a.bl 8
255.o even 4 2 765.2.d.c 8
340.r even 4 2 1360.2.o.f 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
85.2.c.a 8 5.c odd 4 2
85.2.c.a 8 85.g odd 4 2
425.2.d.d 8 1.a even 1 1 trivial
425.2.d.d 8 5.b even 2 1 inner
425.2.d.d 8 17.b even 2 1 inner
425.2.d.d 8 85.c even 2 1 inner
765.2.d.c 8 15.e even 4 2
765.2.d.c 8 255.o even 4 2
1360.2.o.f 8 20.e even 4 2
1360.2.o.f 8 340.r even 4 2
1445.2.b.b 8 85.f odd 4 2
1445.2.b.b 8 85.i odd 4 2
7225.2.a.bl 8 17.c even 4 2
7225.2.a.bl 8 85.j even 4 2

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(425, [\chi])\):

\( T_{2}^{4} - 8T_{2}^{2} + 9 \) Copy content Toggle raw display
\( T_{3}^{4} + 6T_{3}^{2} + 2 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T^{4} - 8 T^{2} + 9)^{2} \) Copy content Toggle raw display
$3$ \( (T^{4} + 6 T^{2} + 2)^{2} \) Copy content Toggle raw display
$5$ \( T^{8} \) Copy content Toggle raw display
$7$ \( (T^{4} + 10 T^{2} + 18)^{2} \) Copy content Toggle raw display
$11$ \( (T^{4} + 26 T^{2} + 162)^{2} \) Copy content Toggle raw display
$13$ \( (T^{2} - 18)^{4} \) Copy content Toggle raw display
$17$ \( T^{8} + 36 T^{6} + \cdots + 83521 \) Copy content Toggle raw display
$19$ \( (T + 2)^{8} \) Copy content Toggle raw display
$23$ \( (T^{4} + 38 T^{2} + 18)^{2} \) Copy content Toggle raw display
$29$ \( (T^{4} + 80 T^{2} + 1152)^{2} \) Copy content Toggle raw display
$31$ \( (T^{4} + 54 T^{2} + 162)^{2} \) Copy content Toggle raw display
$37$ \( (T^{4} + 40 T^{2} + 288)^{2} \) Copy content Toggle raw display
$41$ \( (T^{4} + 20 T^{2} + 72)^{2} \) Copy content Toggle raw display
$43$ \( (T^{2} - 18)^{4} \) Copy content Toggle raw display
$47$ \( (T^{4} - 116 T^{2} + 2916)^{2} \) Copy content Toggle raw display
$53$ \( (T^{4} - 32 T^{2} + 144)^{2} \) Copy content Toggle raw display
$59$ \( (T + 6)^{8} \) Copy content Toggle raw display
$61$ \( (T^{4} + 108 T^{2} + 648)^{2} \) Copy content Toggle raw display
$67$ \( (T^{2} - 18)^{4} \) Copy content Toggle raw display
$71$ \( (T^{4} + 266 T^{2} + 882)^{2} \) Copy content Toggle raw display
$73$ \( (T^{4} + 76 T^{2} + 72)^{2} \) Copy content Toggle raw display
$79$ \( (T^{4} + 54 T^{2} + 162)^{2} \) Copy content Toggle raw display
$83$ \( (T^{4} - 44 T^{2} + 36)^{2} \) Copy content Toggle raw display
$89$ \( (T^{2} - 6 T - 54)^{4} \) Copy content Toggle raw display
$97$ \( (T^{4} + 208 T^{2} + 10368)^{2} \) Copy content Toggle raw display
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