Properties

Label 369.2.n.c
Level $369$
Weight $2$
Character orbit 369.n
Analytic conductor $2.946$
Analytic rank $0$
Dimension $8$
Inner twists $2$

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Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [369,2,Mod(64,369)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(369, base_ring=CyclotomicField(10))
 
chi = DirichletCharacter(H, H._module([0, 9]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("369.64");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 369 = 3^{2} \cdot 41 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 369.n (of order \(10\), degree \(4\), 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: \(2.94647983459\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(2\) over \(\Q(\zeta_{10})\)
Coefficient field: \(\Q(\zeta_{15})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - x^{7} + x^{5} - x^{4} + x^{3} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{7}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 41)
Sato-Tate group: $\mathrm{SU}(2)[C_{10}]$

$q$-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 primitive root of unity \(\zeta_{15}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\zeta_{15}^{5} - \zeta_{15}^{2} + 1) q^{2} + (\zeta_{15}^{5} + \zeta_{15}^{4}) q^{4} + (2 \zeta_{15}^{7} + \cdots + 2 \zeta_{15}^{2}) q^{5}+ \cdots + ( - \zeta_{15}^{4} + \cdots - \zeta_{15}^{2}) q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + (\zeta_{15}^{5} - \zeta_{15}^{2} + 1) q^{2} + (\zeta_{15}^{5} + \zeta_{15}^{4}) q^{4} + (2 \zeta_{15}^{7} + \cdots + 2 \zeta_{15}^{2}) q^{5}+ \cdots + (5 \zeta_{15}^{7} - 7 \zeta_{15}^{6} + \cdots + 3) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 3 q^{2} - 3 q^{4} + 9 q^{5} - 5 q^{7} - 4 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + 3 q^{2} - 3 q^{4} + 9 q^{5} - 5 q^{7} - 4 q^{8} - 6 q^{10} - 5 q^{13} - 3 q^{16} - 20 q^{19} - 9 q^{20} + 15 q^{22} - 15 q^{23} + 7 q^{25} - 10 q^{26} - 20 q^{28} + 25 q^{29} + 6 q^{31} - 30 q^{35} - 4 q^{37} - 12 q^{40} - q^{41} - 13 q^{43} - 30 q^{46} + 20 q^{47} + 17 q^{49} - 38 q^{50} + 10 q^{52} - 20 q^{53} + 25 q^{56} + 40 q^{58} - 7 q^{59} + 29 q^{61} - 24 q^{62} + 16 q^{64} + 40 q^{67} + 15 q^{70} + 30 q^{71} - 48 q^{73} + 36 q^{74} + 25 q^{76} + 26 q^{77} + 36 q^{80} - 31 q^{82} + 56 q^{83} - 3 q^{86} + 10 q^{88} - 35 q^{89} + 2 q^{91} - 15 q^{92} + 20 q^{94} - 15 q^{95} + 20 q^{97} + 22 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/369\mathbb{Z}\right)^\times\).

\(n\) \(83\) \(334\)
\(\chi(n)\) \(1\) \(\zeta_{15}^{2} + \zeta_{15}^{7}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
64.1
−0.978148 0.207912i
0.669131 0.743145i
0.913545 + 0.406737i
−0.104528 0.994522i
0.913545 0.406737i
−0.104528 + 0.994522i
−0.978148 + 0.207912i
0.669131 + 0.743145i
−0.413545 1.27276i 0 0.169131 0.122881i 2.78716 2.02499i 0 −4.07890 1.32531i −2.39169 1.73767i 0 −3.72995 2.70997i
64.2 0.604528 + 1.86055i 0 −1.47815 + 1.07394i 1.13989 0.828176i 0 2.26988 + 0.737529i 0.273659 + 0.198825i 0 2.22995 + 1.62016i
127.1 −0.169131 + 0.122881i 0 −0.604528 + 1.86055i −0.222562 + 0.684977i 0 −1.79833 + 2.47520i −0.255585 0.786610i 0 −0.0465282 0.143199i
127.2 1.47815 1.07394i 0 0.413545 1.27276i 0.795511 2.44833i 0 1.10735 1.52414i 0.373619 + 1.14988i 0 −1.45347 4.47333i
154.1 −0.169131 0.122881i 0 −0.604528 1.86055i −0.222562 0.684977i 0 −1.79833 2.47520i −0.255585 + 0.786610i 0 −0.0465282 + 0.143199i
154.2 1.47815 + 1.07394i 0 0.413545 + 1.27276i 0.795511 + 2.44833i 0 1.10735 + 1.52414i 0.373619 1.14988i 0 −1.45347 + 4.47333i
271.1 −0.413545 + 1.27276i 0 0.169131 + 0.122881i 2.78716 + 2.02499i 0 −4.07890 + 1.32531i −2.39169 + 1.73767i 0 −3.72995 + 2.70997i
271.2 0.604528 1.86055i 0 −1.47815 1.07394i 1.13989 + 0.828176i 0 2.26988 0.737529i 0.273659 0.198825i 0 2.22995 1.62016i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 64.2
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
41.f even 10 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 369.2.n.c 8
3.b odd 2 1 41.2.f.a 8
12.b even 2 1 656.2.be.a 8
41.f even 10 1 inner 369.2.n.c 8
123.l odd 10 1 41.2.f.a 8
123.m odd 20 2 1681.2.a.h 8
492.v even 10 1 656.2.be.a 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
41.2.f.a 8 3.b odd 2 1
41.2.f.a 8 123.l odd 10 1
369.2.n.c 8 1.a even 1 1 trivial
369.2.n.c 8 41.f even 10 1 inner
656.2.be.a 8 12.b even 2 1
656.2.be.a 8 492.v even 10 1
1681.2.a.h 8 123.m odd 20 2

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{8} - 3T_{2}^{7} + 8T_{2}^{6} - 11T_{2}^{5} + 15T_{2}^{4} - 11T_{2}^{3} + 18T_{2}^{2} + 7T_{2} + 1 \) acting on \(S_{2}^{\mathrm{new}}(369, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} - 3 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( T^{8} - 9 T^{7} + \cdots + 81 \) Copy content Toggle raw display
$7$ \( T^{8} + 5 T^{7} + \cdots + 3481 \) Copy content Toggle raw display
$11$ \( T^{8} - 3 T^{6} + \cdots + 3481 \) Copy content Toggle raw display
$13$ \( T^{8} + 5 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$17$ \( T^{8} - 75 T^{6} + \cdots + 93025 \) Copy content Toggle raw display
$19$ \( T^{8} + 20 T^{7} + \cdots + 961 \) Copy content Toggle raw display
$23$ \( T^{8} + 15 T^{7} + \cdots + 50625 \) Copy content Toggle raw display
$29$ \( T^{8} - 25 T^{7} + \cdots + 2163841 \) Copy content Toggle raw display
$31$ \( T^{8} - 6 T^{7} + \cdots + 20736 \) Copy content Toggle raw display
$37$ \( T^{8} + 4 T^{7} + \cdots + 516961 \) Copy content Toggle raw display
$41$ \( T^{8} + T^{7} + \cdots + 2825761 \) Copy content Toggle raw display
$43$ \( T^{8} + 13 T^{7} + \cdots + 3721 \) Copy content Toggle raw display
$47$ \( T^{8} - 20 T^{7} + \cdots + 961 \) Copy content Toggle raw display
$53$ \( T^{8} + 20 T^{7} + \cdots + 961 \) Copy content Toggle raw display
$59$ \( T^{8} + 7 T^{7} + \cdots + 961 \) Copy content Toggle raw display
$61$ \( T^{8} - 29 T^{7} + \cdots + 6355441 \) Copy content Toggle raw display
$67$ \( T^{8} - 40 T^{7} + \cdots + 292681 \) Copy content Toggle raw display
$71$ \( T^{8} - 30 T^{7} + \cdots + 68121 \) Copy content Toggle raw display
$73$ \( (T^{4} + 24 T^{3} + \cdots - 1889)^{2} \) Copy content Toggle raw display
$79$ \( T^{8} + 187 T^{6} + \cdots + 2343961 \) Copy content Toggle raw display
$83$ \( (T^{4} - 28 T^{3} + \cdots - 13919)^{2} \) Copy content Toggle raw display
$89$ \( T^{8} + 35 T^{7} + \cdots + 326041 \) Copy content Toggle raw display
$97$ \( T^{8} - 20 T^{7} + \cdots + 20205025 \) Copy content Toggle raw display
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