Properties

Label 273.4.a.d
Level $273$
Weight $4$
Character orbit 273.a
Self dual yes
Analytic conductor $16.108$
Analytic rank $0$
Dimension $2$
CM no
Inner twists $1$

Related objects

Downloads

Learn more

Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [273,4,Mod(1,273)] 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("273.1"); S:= CuspForms(chi, 4); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(273, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 4, names="a")
 
Level: \( N \) \(=\) \( 273 = 3 \cdot 7 \cdot 13 \)
Weight: \( k \) \(=\) \( 4 \)
Character orbit: \([\chi]\) \(=\) 273.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,2,-6,-14,5] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(5)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(16.1075214316\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{865}) \)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - x - 216 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 1 \)
Twist minimal: yes
Fricke sign: \(+1\)
Sato-Tate group: $\mathrm{SU}(2)$

$q$-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 \(\beta = \frac{1}{2}(1 + \sqrt{865})\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + q^{2} - 3 q^{3} - 7 q^{4} + ( - \beta + 3) q^{5} - 3 q^{6} - 7 q^{7} - 15 q^{8} + 9 q^{9} + ( - \beta + 3) q^{10} + ( - \beta - 3) q^{11} + 21 q^{12} - 13 q^{13} - 7 q^{14} + (3 \beta - 9) q^{15}+ \cdots + ( - 9 \beta - 27) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 2 q^{2} - 6 q^{3} - 14 q^{4} + 5 q^{5} - 6 q^{6} - 14 q^{7} - 30 q^{8} + 18 q^{9} + 5 q^{10} - 7 q^{11} + 42 q^{12} - 26 q^{13} - 14 q^{14} - 15 q^{15} + 82 q^{16} + 7 q^{17} + 18 q^{18} + 111 q^{19}+ \cdots - 63 q^{99}+O(q^{100}) \) Copy content Toggle raw display

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
1.1
15.2054
−14.2054
1.00000 −3.00000 −7.00000 −12.2054 −3.00000 −7.00000 −15.0000 9.00000 −12.2054
1.2 1.00000 −3.00000 −7.00000 17.2054 −3.00000 −7.00000 −15.0000 9.00000 17.2054
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

\( p \) Sign
\(3\) \( +1 \)
\(7\) \( +1 \)
\(13\) \( +1 \)

Inner twists

This newform does not admit any (nontrivial) inner twists.

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 273.4.a.d 2
3.b odd 2 1 819.4.a.d 2
7.b odd 2 1 1911.4.a.g 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
273.4.a.d 2 1.a even 1 1 trivial
819.4.a.d 2 3.b odd 2 1
1911.4.a.g 2 7.b odd 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{4}^{\mathrm{new}}(\Gamma_0(273))\):

\( T_{2} - 1 \) Copy content Toggle raw display
\( T_{5}^{2} - 5T_{5} - 210 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( (T - 1)^{2} \) Copy content Toggle raw display
$3$ \( (T + 3)^{2} \) Copy content Toggle raw display
$5$ \( T^{2} - 5T - 210 \) Copy content Toggle raw display
$7$ \( (T + 7)^{2} \) Copy content Toggle raw display
$11$ \( T^{2} + 7T - 204 \) Copy content Toggle raw display
$13$ \( (T + 13)^{2} \) Copy content Toggle raw display
$17$ \( T^{2} - 7T - 5394 \) Copy content Toggle raw display
$19$ \( T^{2} - 111T - 7516 \) Copy content Toggle raw display
$23$ \( T^{2} - 147T + 3456 \) Copy content Toggle raw display
$29$ \( T^{2} - 3T - 214 \) Copy content Toggle raw display
$31$ \( T^{2} - 324T - 4896 \) Copy content Toggle raw display
$37$ \( T^{2} - 335T + 1890 \) Copy content Toggle raw display
$41$ \( T^{2} - 130T - 38160 \) Copy content Toggle raw display
$43$ \( T^{2} - 247T - 33404 \) Copy content Toggle raw display
$47$ \( T^{2} - 412T + 38976 \) Copy content Toggle raw display
$53$ \( T^{2} - 31140 \) Copy content Toggle raw display
$59$ \( T^{2} - 248T - 39984 \) Copy content Toggle raw display
$61$ \( T^{2} + 825T + 92090 \) Copy content Toggle raw display
$67$ \( T^{2} + 290T - 21360 \) Copy content Toggle raw display
$71$ \( T^{2} + 332T - 391104 \) Copy content Toggle raw display
$73$ \( T^{2} - 341T - 625086 \) Copy content Toggle raw display
$79$ \( T^{2} + 1342 T + 407856 \) Copy content Toggle raw display
$83$ \( T^{2} - 198T - 184824 \) Copy content Toggle raw display
$89$ \( T^{2} - 200T - 408660 \) Copy content Toggle raw display
$97$ \( T^{2} - 856T + 96684 \) Copy content Toggle raw display
show more
show less