Properties

Label 273.4.i.a
Level $273$
Weight $4$
Character orbit 273.i
Analytic conductor $16.108$
Analytic rank $0$
Dimension $2$
Inner twists $2$

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Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [273,4,Mod(79,273)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma://Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("273.79"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(273, base_ring=CyclotomicField(6)) chi = DirichletCharacter(H, H._module([0, 2, 0])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 273 = 3 \cdot 7 \cdot 13 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 273.i (of order \(3\), degree \(2\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,5] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(2)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(16.1075214316\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{-3}) \)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{3}]$

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content gp:mfcoefs(f, 20)
 

Coefficients of the \(q\)-expansion are expressed in terms of a primitive root of unity \(\zeta_{6}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + 5 \zeta_{6} q^{2} + (3 \zeta_{6} - 3) q^{3} + (17 \zeta_{6} - 17) q^{4} + 3 \zeta_{6} q^{5} - 15 q^{6} + (21 \zeta_{6} - 7) q^{7} - 45 q^{8} - 9 \zeta_{6} q^{9} + (15 \zeta_{6} - 15) q^{10} + (9 \zeta_{6} - 9) q^{11} + \cdots + 81 q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 5 q^{2} - 3 q^{3} - 17 q^{4} + 3 q^{5} - 30 q^{6} + 7 q^{7} - 90 q^{8} - 9 q^{9} - 15 q^{10} - 9 q^{11} - 51 q^{12} - 26 q^{13} - 140 q^{14} - 18 q^{15} - 89 q^{16} - 22 q^{17} + 45 q^{18} - 56 q^{19}+ \cdots + 162 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

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

\(n\) \(92\) \(106\) \(157\)
\(\chi(n)\) \(1\) \(1\) \(-\zeta_{6}\)

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.

Copy content comment:embeddings in the coefficient field
 
Copy content gp:mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
79.1
0.500000 0.866025i
0.500000 + 0.866025i
2.50000 4.33013i −1.50000 2.59808i −8.50000 14.7224i 1.50000 2.59808i −15.0000 3.50000 18.1865i −45.0000 −4.50000 + 7.79423i −7.50000 12.9904i
235.1 2.50000 + 4.33013i −1.50000 + 2.59808i −8.50000 + 14.7224i 1.50000 + 2.59808i −15.0000 3.50000 + 18.1865i −45.0000 −4.50000 7.79423i −7.50000 + 12.9904i
\(n\): e.g. 2-40 or 80-90
Significant digits:
Format:

Inner twists

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

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 273.4.i.a 2
7.c even 3 1 inner 273.4.i.a 2
7.c even 3 1 1911.4.a.b 1
7.d odd 6 1 1911.4.a.a 1
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
273.4.i.a 2 1.a even 1 1 trivial
273.4.i.a 2 7.c even 3 1 inner
1911.4.a.a 1 7.d odd 6 1
1911.4.a.b 1 7.c even 3 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{2} - 5T_{2} + 25 \) acting on \(S_{4}^{\mathrm{new}}(273, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} - 5T + 25 \) Copy content Toggle raw display
$3$ \( T^{2} + 3T + 9 \) Copy content Toggle raw display
$5$ \( T^{2} - 3T + 9 \) Copy content Toggle raw display
$7$ \( T^{2} - 7T + 343 \) Copy content Toggle raw display
$11$ \( T^{2} + 9T + 81 \) Copy content Toggle raw display
$13$ \( (T + 13)^{2} \) Copy content Toggle raw display
$17$ \( T^{2} + 22T + 484 \) Copy content Toggle raw display
$19$ \( T^{2} + 56T + 3136 \) Copy content Toggle raw display
$23$ \( T^{2} - 42T + 1764 \) Copy content Toggle raw display
$29$ \( (T - 109)^{2} \) Copy content Toggle raw display
$31$ \( T^{2} - 75T + 5625 \) Copy content Toggle raw display
$37$ \( T^{2} - 256T + 65536 \) Copy content Toggle raw display
$41$ \( (T - 132)^{2} \) Copy content Toggle raw display
$43$ \( (T + 208)^{2} \) Copy content Toggle raw display
$47$ \( T^{2} + 280T + 78400 \) Copy content Toggle raw display
$53$ \( T^{2} + 381T + 145161 \) Copy content Toggle raw display
$59$ \( T^{2} - 43T + 1849 \) Copy content Toggle raw display
$61$ \( T^{2} - 508T + 258064 \) Copy content Toggle raw display
$67$ \( T^{2} + 612T + 374544 \) Copy content Toggle raw display
$71$ \( (T - 238)^{2} \) Copy content Toggle raw display
$73$ \( T^{2} + 134T + 17956 \) Copy content Toggle raw display
$79$ \( T^{2} - 957T + 915849 \) Copy content Toggle raw display
$83$ \( (T + 927)^{2} \) Copy content Toggle raw display
$89$ \( T^{2} - 312T + 97344 \) Copy content Toggle raw display
$97$ \( (T - 577)^{2} \) Copy content Toggle raw display
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