Properties

Label 336.3.o.g
Level $336$
Weight $3$
Character orbit 336.o
Analytic conductor $9.155$
Analytic rank $0$
Dimension $8$
CM no
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [336,3,Mod(335,336)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(336, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 0, 1, 1]))
 
N = Newforms(chi, 3, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("336.335");
 
S:= CuspForms(chi, 3);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 336 = 2^{4} \cdot 3 \cdot 7 \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 336.o (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: \(9.15533688251\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.0.94758543360000.161
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - 4x^{7} + 30x^{6} - 76x^{5} + 571x^{4} - 1020x^{3} + 7086x^{2} - 6588x + 31914 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 2^{4} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-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.

\(f(q)\) \(=\) \( q + \beta_{4} q^{3} - \beta_{6} q^{5} + (\beta_{5} - \beta_{4} - \beta_{2}) q^{7} + ( - \beta_{7} - 4) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{4} q^{3} - \beta_{6} q^{5} + (\beta_{5} - \beta_{4} - \beta_{2}) q^{7} + ( - \beta_{7} - 4) q^{9} + 4 \beta_1 q^{11} + ( - \beta_{6} + 2 \beta_{3}) q^{13} + (\beta_{2} + \beta_1) q^{15} - 10 \beta_{6} q^{17} + ( - 7 \beta_{5} + 7 \beta_{4}) q^{19} + (\beta_{7} - 6 \beta_{6} - \beta_{3} - 5) q^{21} - 6 \beta_1 q^{23} - 19 q^{25} + (9 \beta_{5} - 8 \beta_{4}) q^{27} - 6 \beta_{7} q^{29} + (4 \beta_{5} - 4 \beta_{4}) q^{31} + ( - 12 \beta_{6} + 4 \beta_{3}) q^{33} + ( - 3 \beta_{5} - 3 \beta_{4} - 2 \beta_1) q^{35} + 10 q^{37} + (5 \beta_{2} - 13 \beta_1) q^{39} - 18 \beta_{6} q^{41} - 8 \beta_{2} q^{43} + (3 \beta_{6} + 2 \beta_{3}) q^{45} + ( - 6 \beta_{5} - 6 \beta_{4}) q^{47} + ( - 2 \beta_{6} + 4 \beta_{3} - 29) q^{49} + (10 \beta_{2} + 10 \beta_1) q^{51} + 6 \beta_{7} q^{53} + ( - 12 \beta_{5} + 12 \beta_{4}) q^{55} + ( - 7 \beta_{7} + 35) q^{57} + (15 \beta_{5} + 15 \beta_{4}) q^{59} + (3 \beta_{6} - 6 \beta_{3}) q^{61} + ( - 9 \beta_{5} - \beta_{4} + \cdots + 13 \beta_1) q^{63}+ \cdots + (20 \beta_{2} - 16 \beta_1) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 32 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 32 q^{9} - 40 q^{21} - 152 q^{25} + 80 q^{37} - 232 q^{49} + 280 q^{57} - 392 q^{81} + 480 q^{85} - 160 q^{93}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} - 4x^{7} + 30x^{6} - 76x^{5} + 571x^{4} - 1020x^{3} + 7086x^{2} - 6588x + 31914 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( -2\nu^{6} + 6\nu^{5} - 81\nu^{4} + 152\nu^{3} - 981\nu^{2} + 906\nu - 12177 ) / 2205 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( 1688 \nu^{7} - 5908 \nu^{6} + 53256 \nu^{5} - 118370 \nu^{4} + 1130248 \nu^{3} - 1579956 \nu^{2} + \cdots - 9762579 ) / 6140925 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( - 59 \nu^{7} + 1599 \nu^{6} - 5148 \nu^{5} + 26975 \nu^{4} - 63369 \nu^{3} + 617523 \nu^{2} + \cdots + 4893777 ) / 125325 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( - 249 \nu^{7} - 521 \nu^{6} - 768 \nu^{5} - 12095 \nu^{4} - 66069 \nu^{3} - 298457 \nu^{2} + \cdots - 3281553 ) / 409395 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 249 \nu^{7} - 2264 \nu^{6} + 9123 \nu^{5} - 32465 \nu^{4} + 141264 \nu^{3} - 589958 \nu^{2} + \cdots - 4054137 ) / 409395 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -118\nu^{7} + 413\nu^{6} - 1941\nu^{5} + 3820\nu^{4} - 40403\nu^{3} + 56991\nu^{2} - 343950\nu + 162594 ) / 125325 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 8\nu^{7} - 28\nu^{6} + 226\nu^{5} - 495\nu^{4} + 2928\nu^{3} - 3911\nu^{2} + 36630\nu - 17679 ) / 8355 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( -\beta_{6} - \beta_{5} + \beta_{4} + \beta_{2} + 1 ) / 2 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -2\beta_{6} + 2\beta_{5} + 4\beta_{4} + 2\beta_{3} + \beta_{2} + 2\beta _1 - 11 ) / 2 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -9\beta_{7} + 18\beta_{6} + 26\beta_{5} - 17\beta_{4} + 3\beta_{3} + 3\beta_{2} + 3\beta _1 - 17 ) / 2 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( -18\beta_{7} + 44\beta_{6} + 44\beta_{5} - 44\beta_{4} - 8\beta_{3} + 5\beta_{2} - 98\beta _1 - 233 ) / 2 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 150\beta_{7} + 394\beta_{6} + 200\beta_{5} - 215\beta_{4} - 25\beta_{3} - 134\beta_{2} - 250\beta _1 - 554 ) / 2 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( 495\beta_{7} + 1296\beta_{6} - 640\beta_{5} - 1664\beta_{4} - 504\beta_{3} - 414\beta_{2} + 261\beta _1 + 154 ) / 2 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 1764 \beta_{7} - 6859 \beta_{6} - 9127 \beta_{5} + 1126 \beta_{4} - 1673 \beta_{3} - 2542 \beta_{2} + \cdots + 2458 ) / 2 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/336\mathbb{Z}\right)^\times\).

\(n\) \(85\) \(113\) \(127\) \(241\)
\(\chi(n)\) \(1\) \(-1\) \(-1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
335.1
−2.30588 + 3.12250i
0.143606 3.12250i
−2.30588 3.12250i
0.143606 + 3.12250i
0.856394 + 3.12250i
3.30588 3.12250i
0.856394 3.12250i
3.30588 + 3.12250i
0 −1.58114 2.54951i 0 −2.44949 0 3.16228 6.24500i 0 −4.00000 + 8.06226i 0
335.2 0 −1.58114 2.54951i 0 2.44949 0 3.16228 + 6.24500i 0 −4.00000 + 8.06226i 0
335.3 0 −1.58114 + 2.54951i 0 −2.44949 0 3.16228 + 6.24500i 0 −4.00000 8.06226i 0
335.4 0 −1.58114 + 2.54951i 0 2.44949 0 3.16228 6.24500i 0 −4.00000 8.06226i 0
335.5 0 1.58114 2.54951i 0 −2.44949 0 −3.16228 6.24500i 0 −4.00000 8.06226i 0
335.6 0 1.58114 2.54951i 0 2.44949 0 −3.16228 + 6.24500i 0 −4.00000 8.06226i 0
335.7 0 1.58114 + 2.54951i 0 −2.44949 0 −3.16228 + 6.24500i 0 −4.00000 + 8.06226i 0
335.8 0 1.58114 + 2.54951i 0 2.44949 0 −3.16228 6.24500i 0 −4.00000 + 8.06226i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 335.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
4.b odd 2 1 inner
7.b odd 2 1 inner
12.b even 2 1 inner
21.c even 2 1 inner
28.d even 2 1 inner
84.h odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 336.3.o.g 8
3.b odd 2 1 inner 336.3.o.g 8
4.b odd 2 1 inner 336.3.o.g 8
7.b odd 2 1 inner 336.3.o.g 8
12.b even 2 1 inner 336.3.o.g 8
21.c even 2 1 inner 336.3.o.g 8
28.d even 2 1 inner 336.3.o.g 8
84.h odd 2 1 inner 336.3.o.g 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
336.3.o.g 8 1.a even 1 1 trivial
336.3.o.g 8 3.b odd 2 1 inner
336.3.o.g 8 4.b odd 2 1 inner
336.3.o.g 8 7.b odd 2 1 inner
336.3.o.g 8 12.b even 2 1 inner
336.3.o.g 8 21.c even 2 1 inner
336.3.o.g 8 28.d even 2 1 inner
336.3.o.g 8 84.h odd 2 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{3}^{\mathrm{new}}(336, [\chi])\):

\( T_{5}^{2} - 6 \) Copy content Toggle raw display
\( T_{19}^{2} - 490 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( (T^{4} + 8 T^{2} + 81)^{2} \) Copy content Toggle raw display
$5$ \( (T^{2} - 6)^{4} \) Copy content Toggle raw display
$7$ \( (T^{4} + 58 T^{2} + 2401)^{2} \) Copy content Toggle raw display
$11$ \( (T^{2} - 240)^{4} \) Copy content Toggle raw display
$13$ \( (T^{2} + 390)^{4} \) Copy content Toggle raw display
$17$ \( (T^{2} - 600)^{4} \) Copy content Toggle raw display
$19$ \( (T^{2} - 490)^{4} \) Copy content Toggle raw display
$23$ \( (T^{2} - 540)^{4} \) Copy content Toggle raw display
$29$ \( (T^{2} + 2340)^{4} \) Copy content Toggle raw display
$31$ \( (T^{2} - 160)^{4} \) Copy content Toggle raw display
$37$ \( (T - 10)^{8} \) Copy content Toggle raw display
$41$ \( (T^{2} - 1944)^{4} \) Copy content Toggle raw display
$43$ \( (T^{2} + 2496)^{4} \) Copy content Toggle raw display
$47$ \( (T^{2} + 936)^{4} \) Copy content Toggle raw display
$53$ \( (T^{2} + 2340)^{4} \) Copy content Toggle raw display
$59$ \( (T^{2} + 5850)^{4} \) Copy content Toggle raw display
$61$ \( (T^{2} + 3510)^{4} \) Copy content Toggle raw display
$67$ \( (T^{2} + 5616)^{4} \) Copy content Toggle raw display
$71$ \( (T^{2} - 960)^{4} \) Copy content Toggle raw display
$73$ \( T^{8} \) Copy content Toggle raw display
$79$ \( (T^{2} + 3900)^{4} \) Copy content Toggle raw display
$83$ \( (T^{2} + 2106)^{4} \) Copy content Toggle raw display
$89$ \( (T^{2} - 384)^{4} \) Copy content Toggle raw display
$97$ \( (T^{2} + 1560)^{4} \) Copy content Toggle raw display
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