Properties

Label 1917.1.s.b
Level $1917$
Weight $1$
Character orbit 1917.s
Analytic conductor $0.957$
Analytic rank $0$
Dimension $36$
Projective image $D_{63}$
CM discriminant -71
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1917,1,Mod(70,1917)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1917, base_ring=CyclotomicField(18))
 
chi = DirichletCharacter(H, H._module([4, 9]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1917.70");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1917 = 3^{3} \cdot 71 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 1917.s (of order \(18\), degree \(6\), 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: \(0.956707629217\)
Analytic rank: \(0\)
Dimension: \(36\)
Relative dimension: \(6\) over \(\Q(\zeta_{18})\)
Coefficient field: \(\Q(\zeta_{63})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{36} - x^{33} + x^{27} - x^{24} + x^{18} - x^{12} + x^{9} - x^{3} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{63}\)
Projective field: Galois closure of \(\mathbb{Q}[x]/(x^{63} - \cdots)\)

$q$-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.

\(f(q)\) \(=\) \( q + ( - \zeta_{126}^{9} - \zeta_{126}^{5}) q^{2} + \zeta_{126}^{8} q^{3} + (\zeta_{126}^{18} + \cdots + \zeta_{126}^{10}) q^{4}+ \cdots + \zeta_{126}^{16} q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \zeta_{126}^{9} - \zeta_{126}^{5}) q^{2} + \zeta_{126}^{8} q^{3} + (\zeta_{126}^{18} + \cdots + \zeta_{126}^{10}) q^{4}+ \cdots + (\zeta_{126}^{44} + \zeta_{126}^{40}) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 36 q - 6 q^{2} - 6 q^{4} - 3 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 36 q - 6 q^{2} - 6 q^{4} - 3 q^{8} - 6 q^{12} - 3 q^{16} - 18 q^{18} - 15 q^{20} - 6 q^{24} + 3 q^{27} + 3 q^{29} - 3 q^{30} - 3 q^{32} + 3 q^{36} - 3 q^{37} + 3 q^{38} + 6 q^{40} + 3 q^{43} - 3 q^{45} - 6 q^{48} + 3 q^{54} + 3 q^{57} + 3 q^{58} - 3 q^{60} - 21 q^{64} - 18 q^{71} + 3 q^{72} + 6 q^{73} - 24 q^{74} - 21 q^{75} - 3 q^{76} + 6 q^{80} + 3 q^{86} + 39 q^{90} - 3 q^{95} - 3 q^{96}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1917\mathbb{Z}\right)^\times\).

\(n\) \(433\) \(569\)
\(\chi(n)\) \(-1\) \(\zeta_{126}^{14}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
70.1
−0.124344 0.992239i
−0.318487 + 0.947927i
0.542546 + 0.840026i
0.698237 0.715867i
−0.853291 0.521435i
0.995031 + 0.0995678i
−0.0249307 0.999689i
−0.411287 + 0.911506i
0.456211 + 0.889872i
−0.797133 0.603804i
−0.969077 + 0.246757i
0.980172 + 0.198146i
−0.998757 + 0.0498459i
0.921476 + 0.388435i
0.878222 0.478254i
−0.661686 0.749781i
−0.583744 + 0.811938i
0.270840 + 0.962624i
−0.998757 0.0498459i
0.921476 0.388435i
−1.48471 1.24582i 0.542546 0.840026i 0.478651 + 2.71457i −0.686617 0.249908i −1.85205 + 0.571281i 0 1.70213 2.94817i −0.411287 0.911506i 0.708087 + 1.22644i
70.2 −1.22128 1.02477i −0.853291 + 0.521435i 0.267710 + 1.51826i −1.55282 0.565181i 1.57646 + 0.237613i 0 0.431791 0.747885i 0.456211 0.889872i 1.31724 + 2.28153i
70.3 −0.630128 0.528741i −0.124344 + 0.992239i −0.0561529 0.318459i 1.85839 + 0.676400i 0.602990 0.559493i 0 −0.544286 + 0.942730i −0.969077 0.246757i −0.813387 1.40883i
70.4 −0.0381960 0.0320503i 0.995031 0.0995678i −0.173216 0.982359i 1.37769 + 0.501437i −0.0411974 0.0280879i 0 −0.0497994 + 0.0862551i 0.980172 0.198146i −0.0365510 0.0633082i
70.5 0.698955 + 0.586493i −0.318487 0.947927i −0.0290839 0.164943i −0.140447 0.0511184i 0.333345 0.849349i 0 0.532620 0.922525i −0.797133 + 0.603804i −0.0681853 0.118100i
70.6 1.50171 + 1.26009i 0.698237 + 0.715867i 0.493674 + 2.79976i −1.79589 0.653650i 0.146497 + 1.95486i 0 −1.80641 + 3.12880i −0.0249307 + 0.999689i −1.87325 3.24457i
283.1 −0.346865 1.96717i 0.980172 0.198146i −2.80974 + 1.02266i 0.114493 + 0.0960712i −0.729774 1.85943i 0 1.98759 + 3.44260i 0.921476 0.388435i 0.149274 0.258551i
283.2 −0.229801 1.30327i −0.969077 0.246757i −0.706003 + 0.256964i 1.46402 + 1.22846i −0.0988957 + 1.31967i 0 −0.164553 0.285014i 0.878222 + 0.478254i 1.26458 2.19031i
283.3 −0.202732 1.14975i −0.797133 + 0.603804i −0.341134 + 0.124162i −1.51498 1.27122i 0.855829 + 0.794093i 0 −0.371829 0.644027i 0.270840 0.962624i −1.15445 + 1.99956i
283.4 0.0940619 + 0.533452i 0.456211 0.889872i 0.663970 0.241665i 0.559735 + 0.469673i 0.517616 + 0.159663i 0 0.462211 + 0.800574i −0.583744 0.811938i −0.197898 + 0.342770i
283.5 0.305003 + 1.72976i −0.411287 0.911506i −1.95935 + 0.713144i −1.12310 0.942393i 1.45124 0.989440i 0 −0.952952 1.65056i −0.661686 + 0.749781i 1.28756 2.23013i
283.6 0.320025 + 1.81495i −0.0249307 + 0.999689i −2.25195 + 0.819642i 1.26587 + 1.06219i −1.82237 + 0.274678i 0 −1.28682 2.22883i −0.998757 0.0498459i −1.52272 + 2.63743i
709.1 −1.87005 + 0.680641i 0.921476 0.388435i 2.26776 1.90287i −0.343417 1.94762i −1.45882 + 1.35359i 0 −1.95060 + 3.37854i 0.698237 0.715867i 1.96783 + 3.40839i
709.2 −1.31226 + 0.477622i −0.998757 0.0498459i 0.727848 0.610737i 0.126882 + 0.719581i 1.33443 0.411618i 0 0.0348151 0.0603014i 0.995031 + 0.0995678i −0.510189 0.883673i
709.3 −1.01965 + 0.371124i −0.661686 + 0.749781i 0.135916 0.114047i 0.0259535 + 0.147190i 0.396429 1.01008i 0 0.446285 0.772988i −0.124344 0.992239i −0.0810891 0.140450i
709.4 0.233690 0.0850561i 0.878222 + 0.478254i −0.718668 + 0.603034i 0.286950 + 1.62737i 0.245910 + 0.0370649i 0 −0.240997 + 0.417420i 0.542546 + 0.840026i 0.205475 + 0.355893i
709.5 0.598559 0.217858i 0.270840 0.962624i −0.455233 + 0.381986i 0.331867 + 1.88211i −0.0476011 0.635192i 0 −0.507752 + 0.879452i −0.853291 0.521435i 0.608674 + 1.05425i
709.6 1.60366 0.583685i −0.583744 0.811938i 1.46500 1.22928i −0.254586 1.44383i −1.41004 0.961352i 0 0.778561 1.34851i −0.318487 + 0.947927i −1.25101 2.16682i
922.1 −1.87005 0.680641i 0.921476 + 0.388435i 2.26776 + 1.90287i −0.343417 + 1.94762i −1.45882 1.35359i 0 −1.95060 3.37854i 0.698237 + 0.715867i 1.96783 3.40839i
922.2 −1.31226 0.477622i −0.998757 + 0.0498459i 0.727848 + 0.610737i 0.126882 0.719581i 1.33443 + 0.411618i 0 0.0348151 + 0.0603014i 0.995031 0.0995678i −0.510189 + 0.883673i
See all 36 embeddings
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 70.6
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
71.b odd 2 1 CM by \(\Q(\sqrt{-71}) \)
27.e even 9 1 inner
1917.s odd 18 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1917.1.s.b 36
27.e even 9 1 inner 1917.1.s.b 36
71.b odd 2 1 CM 1917.1.s.b 36
1917.s odd 18 1 inner 1917.1.s.b 36
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1917.1.s.b 36 1.a even 1 1 trivial
1917.1.s.b 36 27.e even 9 1 inner
1917.1.s.b 36 71.b odd 2 1 CM
1917.1.s.b 36 1917.s odd 18 1 inner

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{36} + 6 T_{2}^{35} + 21 T_{2}^{34} + 55 T_{2}^{33} + 117 T_{2}^{32} + 207 T_{2}^{31} + 367 T_{2}^{30} + \cdots + 1 \) acting on \(S_{1}^{\mathrm{new}}(1917, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{36} + 6 T^{35} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( T^{36} - T^{33} + \cdots + 1 \) Copy content Toggle raw display
$5$ \( T^{36} + T^{33} + \cdots + 1 \) Copy content Toggle raw display
$7$ \( T^{36} \) Copy content Toggle raw display
$11$ \( T^{36} \) Copy content Toggle raw display
$13$ \( T^{36} \) Copy content Toggle raw display
$17$ \( T^{36} \) Copy content Toggle raw display
$19$ \( T^{36} + 18 T^{34} + \cdots + 1 \) Copy content Toggle raw display
$23$ \( T^{36} \) Copy content Toggle raw display
$29$ \( T^{36} - 3 T^{35} + \cdots + 1 \) Copy content Toggle raw display
$31$ \( T^{36} \) Copy content Toggle raw display
$37$ \( (T^{12} + T^{11} + 7 T^{10} + \cdots + 1)^{3} \) Copy content Toggle raw display
$41$ \( T^{36} \) Copy content Toggle raw display
$43$ \( T^{36} - 3 T^{35} + \cdots + 1 \) Copy content Toggle raw display
$47$ \( T^{36} \) Copy content Toggle raw display
$53$ \( T^{36} \) Copy content Toggle raw display
$59$ \( T^{36} \) Copy content Toggle raw display
$61$ \( T^{36} \) Copy content Toggle raw display
$67$ \( T^{36} \) Copy content Toggle raw display
$71$ \( (T^{2} + T + 1)^{18} \) Copy content Toggle raw display
$73$ \( (T^{6} - T^{5} + 3 T^{4} + \cdots + 1)^{6} \) Copy content Toggle raw display
$79$ \( T^{36} + T^{33} + \cdots + 1 \) Copy content Toggle raw display
$83$ \( T^{36} + T^{33} + \cdots + 1 \) Copy content Toggle raw display
$89$ \( T^{36} + 18 T^{34} + \cdots + 1 \) Copy content Toggle raw display
$97$ \( T^{36} \) Copy content Toggle raw display
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