Properties

Label 1340.1.bl.a
Level $1340$
Weight $1$
Character orbit 1340.bl
Analytic conductor $0.669$
Analytic rank $0$
Dimension $20$
Projective image $D_{33}$
CM discriminant -20
Inner twists $4$

Related objects

Downloads

Learn more

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [1340,1,Mod(19,1340)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(1340, base_ring=CyclotomicField(66))
 
chi = DirichletCharacter(H, H._module([33, 33, 10]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("1340.19");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 1340 = 2^{2} \cdot 5 \cdot 67 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 1340.bl (of order \(66\), degree \(20\), 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: \(0.668747116928\)
Analytic rank: \(0\)
Dimension: \(20\)
Coefficient field: \(\Q(\zeta_{33})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{20} - x^{19} + x^{17} - x^{16} + x^{14} - x^{13} + x^{11} - x^{10} + x^{9} - x^{7} + x^{6} - x^{4} + x^{3} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Projective image: \(D_{33}\)
Projective field: Galois closure of \(\mathbb{Q}[x]/(x^{33} - \cdots)\)

$q$-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.

\(f(q)\) \(=\) \( q + \zeta_{66}^{31} q^{2} + (\zeta_{66}^{25} + \zeta_{66}^{17}) q^{3} - \zeta_{66}^{29} q^{4} - \zeta_{66}^{3} q^{5} + ( - \zeta_{66}^{23} - \zeta_{66}^{15}) q^{6} + ( - \zeta_{66}^{30} - \zeta_{66}^{10}) q^{7} + \zeta_{66}^{27} q^{8} + ( - \zeta_{66}^{17} + \cdots - \zeta_{66}) q^{9} +O(q^{10}) \) Copy content Toggle raw display \( q + \zeta_{66}^{31} q^{2} + (\zeta_{66}^{25} + \zeta_{66}^{17}) q^{3} - \zeta_{66}^{29} q^{4} - \zeta_{66}^{3} q^{5} + ( - \zeta_{66}^{23} - \zeta_{66}^{15}) q^{6} + ( - \zeta_{66}^{30} - \zeta_{66}^{10}) q^{7} + \zeta_{66}^{27} q^{8} + ( - \zeta_{66}^{17} + \cdots - \zeta_{66}) q^{9} + \cdots + (\zeta_{66}^{25} + \cdots + \zeta_{66}^{5}) q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 20 q - q^{2} - 2 q^{3} + q^{4} - 2 q^{5} - q^{6} + q^{7} + 2 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 20 q - q^{2} - 2 q^{3} + q^{4} - 2 q^{5} - q^{6} + q^{7} + 2 q^{8} - q^{10} + q^{12} + 2 q^{14} - 2 q^{15} + q^{16} + q^{20} - 10 q^{21} + q^{23} - 9 q^{24} - 2 q^{25} + 2 q^{27} + q^{28} - q^{29} - q^{30} - q^{32} - 21 q^{35} + 2 q^{40} - q^{41} - 20 q^{42} + 9 q^{43} - q^{46} + q^{47} + q^{48} - q^{50} + q^{54} - q^{56} - 2 q^{58} + q^{60} - 9 q^{61} + 11 q^{63} - 2 q^{64} - q^{67} + q^{69} - 9 q^{70} + 11 q^{72} - 2 q^{75} + q^{80} + 2 q^{81} - 2 q^{82} + q^{83} + q^{84} - q^{86} - q^{87} - 4 q^{89} - 2 q^{92} + 2 q^{94} - q^{96}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/1340\mathbb{Z}\right)^\times\).

\(n\) \(537\) \(671\) \(1141\)
\(\chi(n)\) \(-1\) \(-1\) \(-\zeta_{66}^{29}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
19.1
0.235759 + 0.971812i
0.981929 + 0.189251i
0.723734 + 0.690079i
0.0475819 + 0.998867i
0.0475819 0.998867i
0.928368 0.371662i
−0.786053 + 0.618159i
−0.995472 + 0.0950560i
−0.327068 0.945001i
0.580057 + 0.814576i
−0.888835 0.458227i
−0.786053 0.618159i
0.981929 0.189251i
−0.995472 0.0950560i
−0.327068 + 0.945001i
0.928368 + 0.371662i
0.235759 0.971812i
0.723734 0.690079i
0.580057 0.814576i
−0.888835 + 0.458227i
0.888835 + 0.458227i 1.11312 0.326842i 0.580057 + 0.814576i −0.654861 0.755750i 1.13915 + 0.219553i −0.0688733 1.44583i 0.142315 + 0.989821i 0.290959 0.186988i −0.235759 0.971812i
39.1 −0.928368 + 0.371662i 0.947890 + 1.09392i 0.723734 0.690079i 0.841254 + 0.540641i −1.28656 0.663268i −0.514186 0.404360i −0.415415 + 0.909632i −0.155858 + 1.08402i −0.981929 0.189251i
199.1 −0.0475819 + 0.998867i −1.91030 0.560914i −0.995472 0.0950560i −0.654861 + 0.755750i 0.651174 1.88144i 0.419102 0.216062i 0.142315 0.989821i 2.49336 + 1.60238i −0.723734 0.690079i
339.1 0.995472 + 0.0950560i −1.65210 1.06174i 0.981929 + 0.189251i −0.142315 0.989821i −1.54370 1.21398i 1.03115 1.44805i 0.959493 + 0.281733i 1.18673 + 2.59858i −0.0475819 0.998867i
419.1 0.995472 0.0950560i −1.65210 + 1.06174i 0.981929 0.189251i −0.142315 + 0.989821i −1.54370 + 1.21398i 1.03115 + 1.44805i 0.959493 0.281733i 1.18673 2.59858i −0.0475819 + 0.998867i
479.1 −0.723734 0.690079i 0.0135432 + 0.0941952i 0.0475819 + 0.998867i 0.415415 0.909632i 0.0552004 0.0775182i 0.370638 1.52779i 0.654861 0.755750i 0.950804 0.279181i −0.928368 + 0.371662i
559.1 −0.235759 0.971812i −0.252989 + 1.75958i −0.888835 + 0.458227i 0.415415 + 0.909632i 1.76962 0.168978i −1.34378 + 1.28129i 0.654861 + 0.755750i −2.07261 0.608574i 0.786053 0.618159i
619.1 −0.981929 0.189251i −0.771316 1.68895i 0.928368 + 0.371662i −0.959493 + 0.281733i 0.437742 + 1.80440i 0.379436 + 1.09631i −0.841254 0.540641i −1.60275 + 1.84967i 0.995472 0.0950560i
639.1 0.786053 + 0.618159i 0.308779 + 0.356349i 0.235759 + 0.971812i 0.841254 + 0.540641i 0.0224357 + 0.470984i −1.82318 + 0.729892i −0.415415 + 0.909632i 0.110674 0.769755i 0.327068 + 0.945001i
659.1 0.327068 + 0.945001i 0.653077 + 1.43004i −0.786053 + 0.618159i −0.959493 + 0.281733i −1.13779 + 1.08488i 1.95496 + 0.376789i −0.841254 0.540641i −0.963639 + 1.11210i −0.580057 0.814576i
719.1 −0.580057 + 0.814576i 0.550294 + 0.353653i −0.327068 0.945001i −0.142315 0.989821i −0.607279 + 0.243118i 0.0947329 + 0.00904590i 0.959493 + 0.281733i −0.237662 0.520406i 0.888835 + 0.458227i
839.1 −0.235759 + 0.971812i −0.252989 1.75958i −0.888835 0.458227i 0.415415 0.909632i 1.76962 + 0.168978i −1.34378 1.28129i 0.654861 0.755750i −2.07261 + 0.608574i 0.786053 + 0.618159i
859.1 −0.928368 0.371662i 0.947890 1.09392i 0.723734 + 0.690079i 0.841254 0.540641i −1.28656 + 0.663268i −0.514186 + 0.404360i −0.415415 0.909632i −0.155858 1.08402i −0.981929 + 0.189251i
959.1 −0.981929 + 0.189251i −0.771316 + 1.68895i 0.928368 0.371662i −0.959493 0.281733i 0.437742 1.80440i 0.379436 1.09631i −0.841254 + 0.540641i −1.60275 1.84967i 0.995472 + 0.0950560i
1059.1 0.786053 0.618159i 0.308779 0.356349i 0.235759 0.971812i 0.841254 0.540641i 0.0224357 0.470984i −1.82318 0.729892i −0.415415 0.909632i 0.110674 + 0.769755i 0.327068 0.945001i
1119.1 −0.723734 + 0.690079i 0.0135432 0.0941952i 0.0475819 0.998867i 0.415415 + 0.909632i 0.0552004 + 0.0775182i 0.370638 + 1.52779i 0.654861 + 0.755750i 0.950804 + 0.279181i −0.928368 0.371662i
1199.1 0.888835 0.458227i 1.11312 + 0.326842i 0.580057 0.814576i −0.654861 + 0.755750i 1.13915 0.219553i −0.0688733 + 1.44583i 0.142315 0.989821i 0.290959 + 0.186988i −0.235759 + 0.971812i
1239.1 −0.0475819 0.998867i −1.91030 + 0.560914i −0.995472 + 0.0950560i −0.654861 0.755750i 0.651174 + 1.88144i 0.419102 + 0.216062i 0.142315 + 0.989821i 2.49336 1.60238i −0.723734 + 0.690079i
1279.1 0.327068 0.945001i 0.653077 1.43004i −0.786053 0.618159i −0.959493 0.281733i −1.13779 1.08488i 1.95496 0.376789i −0.841254 + 0.540641i −0.963639 1.11210i −0.580057 + 0.814576i
1299.1 −0.580057 0.814576i 0.550294 0.353653i −0.327068 + 0.945001i −0.142315 + 0.989821i −0.607279 0.243118i 0.0947329 0.00904590i 0.959493 0.281733i −0.237662 + 0.520406i 0.888835 0.458227i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 19.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
20.d odd 2 1 CM by \(\Q(\sqrt{-5}) \)
67.g even 33 1 inner
1340.bl odd 66 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 1340.1.bl.a 20
4.b odd 2 1 1340.1.bl.b yes 20
5.b even 2 1 1340.1.bl.b yes 20
20.d odd 2 1 CM 1340.1.bl.a 20
67.g even 33 1 inner 1340.1.bl.a 20
268.o odd 66 1 1340.1.bl.b yes 20
335.u even 66 1 1340.1.bl.b yes 20
1340.bl odd 66 1 inner 1340.1.bl.a 20
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
1340.1.bl.a 20 1.a even 1 1 trivial
1340.1.bl.a 20 20.d odd 2 1 CM
1340.1.bl.a 20 67.g even 33 1 inner
1340.1.bl.a 20 1340.bl odd 66 1 inner
1340.1.bl.b yes 20 4.b odd 2 1
1340.1.bl.b yes 20 5.b even 2 1
1340.1.bl.b yes 20 268.o odd 66 1
1340.1.bl.b yes 20 335.u even 66 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{20} + 2 T_{3}^{19} + 3 T_{3}^{18} + 4 T_{3}^{17} + 5 T_{3}^{16} + 6 T_{3}^{15} + 18 T_{3}^{14} + \cdots + 1 \) acting on \(S_{1}^{\mathrm{new}}(1340, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{20} + T^{19} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( T^{20} + 2 T^{19} + \cdots + 1 \) Copy content Toggle raw display
$5$ \( (T^{10} + T^{9} + T^{8} + \cdots + 1)^{2} \) Copy content Toggle raw display
$7$ \( T^{20} - T^{19} + \cdots + 1 \) Copy content Toggle raw display
$11$ \( T^{20} \) Copy content Toggle raw display
$13$ \( T^{20} \) Copy content Toggle raw display
$17$ \( T^{20} \) Copy content Toggle raw display
$19$ \( T^{20} \) Copy content Toggle raw display
$23$ \( T^{20} - T^{19} + \cdots + 1 \) Copy content Toggle raw display
$29$ \( T^{20} + T^{19} + \cdots + 1 \) Copy content Toggle raw display
$31$ \( T^{20} \) Copy content Toggle raw display
$37$ \( T^{20} \) Copy content Toggle raw display
$41$ \( T^{20} + T^{19} + \cdots + 1 \) Copy content Toggle raw display
$43$ \( T^{20} - 9 T^{19} + \cdots + 1 \) Copy content Toggle raw display
$47$ \( T^{20} - T^{19} + \cdots + 1 \) Copy content Toggle raw display
$53$ \( T^{20} \) Copy content Toggle raw display
$59$ \( T^{20} \) Copy content Toggle raw display
$61$ \( T^{20} + 9 T^{19} + \cdots + 1 \) Copy content Toggle raw display
$67$ \( T^{20} + T^{19} + \cdots + 1 \) Copy content Toggle raw display
$71$ \( T^{20} \) Copy content Toggle raw display
$73$ \( T^{20} \) Copy content Toggle raw display
$79$ \( T^{20} \) Copy content Toggle raw display
$83$ \( T^{20} - T^{19} + \cdots + 1 \) Copy content Toggle raw display
$89$ \( (T^{10} + 2 T^{9} + 4 T^{8} + \cdots + 1)^{2} \) Copy content Toggle raw display
$97$ \( T^{20} \) Copy content Toggle raw display
show more
show less