Properties

Label 273.2.k.a
Level $273$
Weight $2$
Character orbit 273.k
Analytic conductor $2.180$
Analytic rank $0$
Dimension $6$
CM no
Inner twists $2$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [273,2,Mod(22,273)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(273, base_ring=CyclotomicField(6))
 
chi = DirichletCharacter(H, H._module([0, 0, 4]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("273.22");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 273 = 3 \cdot 7 \cdot 13 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 273.k (of order \(3\), degree \(2\), 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: \(2.17991597518\)
Analytic rank: \(0\)
Dimension: \(6\)
Relative dimension: \(3\) over \(\Q(\zeta_{3})\)
Coefficient field: \(\Q(\zeta_{18})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} - x^{3} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-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 \(\zeta_{18}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + (\zeta_{18}^{5} - \zeta_{18}^{4} + \cdots + \zeta_{18}) q^{2}+ \cdots + (\zeta_{18}^{3} - 1) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + (\zeta_{18}^{5} - \zeta_{18}^{4} + \cdots + \zeta_{18}) q^{2}+ \cdots + (2 \zeta_{18}^{5} + \zeta_{18}^{4} + \cdots + 2) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q - 3 q^{3} + 12 q^{5} + 3 q^{7} - 6 q^{8} - 3 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 6 q - 3 q^{3} + 12 q^{5} + 3 q^{7} - 6 q^{8} - 3 q^{9} + 3 q^{10} - 6 q^{11} - 6 q^{15} + 6 q^{16} - 6 q^{17} - 9 q^{19} + 3 q^{20} - 6 q^{21} + 3 q^{22} - 3 q^{23} + 3 q^{24} + 6 q^{25} - 6 q^{26} + 6 q^{27} - 9 q^{29} + 3 q^{30} + 18 q^{31} - 9 q^{32} - 6 q^{33} - 12 q^{34} + 6 q^{35} - 12 q^{37} - 12 q^{38} - 6 q^{40} - 6 q^{41} - 9 q^{43} + 30 q^{44} - 6 q^{45} + 21 q^{46} + 6 q^{47} + 6 q^{48} - 3 q^{49} + 6 q^{50} + 12 q^{51} - 6 q^{52} + 6 q^{53} - 3 q^{56} + 18 q^{57} - 30 q^{58} - 15 q^{59} - 6 q^{60} + 15 q^{61} - 9 q^{62} + 3 q^{63} - 6 q^{64} - 6 q^{65} - 6 q^{66} - 9 q^{67} - 21 q^{68} - 3 q^{69} + 6 q^{70} + 12 q^{71} + 3 q^{72} + 60 q^{73} + 21 q^{74} - 3 q^{75} + 6 q^{76} - 12 q^{77} + 21 q^{78} - 42 q^{79} - 3 q^{81} + 48 q^{83} + 3 q^{85} + 30 q^{86} - 9 q^{87} + 3 q^{88} + 9 q^{89} - 6 q^{90} + 12 q^{92} - 9 q^{93} - 15 q^{94} - 30 q^{95} + 18 q^{96} - 3 q^{97} + 12 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/273\mathbb{Z}\right)^\times\).

\(n\) \(92\) \(106\) \(157\)
\(\chi(n)\) \(1\) \(-1 + \zeta_{18}^{3}\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
22.1
−0.173648 + 0.984808i
0.939693 0.342020i
−0.766044 0.642788i
−0.173648 0.984808i
0.939693 + 0.342020i
−0.766044 + 0.642788i
−0.766044 + 1.32683i −0.500000 + 0.866025i −0.173648 0.300767i 0.120615 −0.766044 1.32683i 0.500000 + 0.866025i −2.53209 −0.500000 0.866025i −0.0923963 + 0.160035i
22.2 −0.173648 + 0.300767i −0.500000 + 0.866025i 0.939693 + 1.62760i 3.53209 −0.173648 0.300767i 0.500000 + 0.866025i −1.34730 −0.500000 0.866025i −0.613341 + 1.06234i
22.3 0.939693 1.62760i −0.500000 + 0.866025i −0.766044 1.32683i 2.34730 0.939693 + 1.62760i 0.500000 + 0.866025i 0.879385 −0.500000 0.866025i 2.20574 3.82045i
211.1 −0.766044 1.32683i −0.500000 0.866025i −0.173648 + 0.300767i 0.120615 −0.766044 + 1.32683i 0.500000 0.866025i −2.53209 −0.500000 + 0.866025i −0.0923963 0.160035i
211.2 −0.173648 0.300767i −0.500000 0.866025i 0.939693 1.62760i 3.53209 −0.173648 + 0.300767i 0.500000 0.866025i −1.34730 −0.500000 + 0.866025i −0.613341 1.06234i
211.3 0.939693 + 1.62760i −0.500000 0.866025i −0.766044 + 1.32683i 2.34730 0.939693 1.62760i 0.500000 0.866025i 0.879385 −0.500000 + 0.866025i 2.20574 + 3.82045i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 22.3
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
13.c even 3 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 273.2.k.a 6
3.b odd 2 1 819.2.o.g 6
13.c even 3 1 inner 273.2.k.a 6
13.c even 3 1 3549.2.a.o 3
13.e even 6 1 3549.2.a.n 3
39.i odd 6 1 819.2.o.g 6
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
273.2.k.a 6 1.a even 1 1 trivial
273.2.k.a 6 13.c even 3 1 inner
819.2.o.g 6 3.b odd 2 1
819.2.o.g 6 39.i odd 6 1
3549.2.a.n 3 13.e even 6 1
3549.2.a.o 3 13.c even 3 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{6} + 3T_{2}^{4} + 2T_{2}^{3} + 9T_{2}^{2} + 3T_{2} + 1 \) acting on \(S_{2}^{\mathrm{new}}(273, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{6} + 3 T^{4} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( (T^{2} + T + 1)^{3} \) Copy content Toggle raw display
$5$ \( (T^{3} - 6 T^{2} + 9 T - 1)^{2} \) Copy content Toggle raw display
$7$ \( (T^{2} - T + 1)^{3} \) Copy content Toggle raw display
$11$ \( T^{6} + 6 T^{5} + \cdots + 5041 \) Copy content Toggle raw display
$13$ \( T^{6} - 19T^{3} + 2197 \) Copy content Toggle raw display
$17$ \( T^{6} + 6 T^{5} + \cdots + 25281 \) Copy content Toggle raw display
$19$ \( T^{6} + 9 T^{5} + \cdots + 289 \) Copy content Toggle raw display
$23$ \( T^{6} + 3 T^{5} + \cdots + 3249 \) Copy content Toggle raw display
$29$ \( T^{6} + 9 T^{5} + \cdots + 104329 \) Copy content Toggle raw display
$31$ \( (T^{3} - 9 T^{2} + 27)^{2} \) Copy content Toggle raw display
$37$ \( T^{6} + 12 T^{5} + \cdots + 106929 \) Copy content Toggle raw display
$41$ \( T^{6} + 6 T^{5} + \cdots + 732736 \) Copy content Toggle raw display
$43$ \( T^{6} + 9 T^{5} + \cdots + 5329 \) Copy content Toggle raw display
$47$ \( (T^{3} - 3 T^{2} - 18 T + 3)^{2} \) Copy content Toggle raw display
$53$ \( (T^{3} - 3 T^{2} + \cdots + 867)^{2} \) Copy content Toggle raw display
$59$ \( T^{6} + 15 T^{5} + \cdots + 1671849 \) Copy content Toggle raw display
$61$ \( T^{6} - 15 T^{5} + \cdots + 16129 \) Copy content Toggle raw display
$67$ \( T^{6} + 9 T^{5} + \cdots + 2505889 \) Copy content Toggle raw display
$71$ \( T^{6} - 12 T^{5} + \cdots + 12321 \) Copy content Toggle raw display
$73$ \( (T^{3} - 30 T^{2} + \cdots - 807)^{2} \) Copy content Toggle raw display
$79$ \( (T^{3} + 21 T^{2} + \cdots + 271)^{2} \) Copy content Toggle raw display
$83$ \( (T^{3} - 24 T^{2} + \cdots - 111)^{2} \) Copy content Toggle raw display
$89$ \( T^{6} - 9 T^{5} + \cdots + 1 \) Copy content Toggle raw display
$97$ \( T^{6} + 3 T^{5} + \cdots + 3249 \) Copy content Toggle raw display
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