Properties

Label 39.4.a.b
Level 3939
Weight 44
Character orbit 39.a
Self dual yes
Analytic conductor 2.3012.301
Analytic rank 00
Dimension 22
CM no
Inner twists 11

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [39,4,Mod(1,39)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(39, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0]))
 
N = Newforms(chi, 4, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("39.1");
 
S:= CuspForms(chi, 4);
 
N := Newforms(S);
 
Level: N N == 39=313 39 = 3 \cdot 13
Weight: k k == 4 4
Character orbit: [χ][\chi] == 39.a (trivial)

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: yes
Analytic conductor: 2.301074490222.30107449022
Analytic rank: 00
Dimension: 22
Coefficient field: Q(14)\Q(\sqrt{14})
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: x214 x^{2} - 14 Copy content Toggle raw display
Coefficient ring: Z[a1,a2]\Z[a_1, a_2]
Coefficient ring index: 1 1
Twist minimal: yes
Fricke sign: +1+1
Sato-Tate group: SU(2)\mathrm{SU}(2)

qq-expansion

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

Coefficients of the qq-expansion are expressed in terms of β=14\beta = \sqrt{14}. We also show the integral qq-expansion of the trace form.

f(q)f(q) == q+(β+1)q23q3+(2β+7)q4+(2β+12)q5+(3β3)q62βq7+(β+27)q8+9q9+(10β16)q10+(12β22)q11++(108β198)q99+O(q100) q + (\beta + 1) q^{2} - 3 q^{3} + (2 \beta + 7) q^{4} + ( - 2 \beta + 12) q^{5} + ( - 3 \beta - 3) q^{6} - 2 \beta q^{7} + (\beta + 27) q^{8} + 9 q^{9} + (10 \beta - 16) q^{10} + ( - 12 \beta - 22) q^{11} + \cdots + ( - 108 \beta - 198) q^{99} +O(q^{100}) Copy content Toggle raw display
Tr(f)(q)\operatorname{Tr}(f)(q) == 2q+2q26q3+14q4+24q56q6+54q8+18q932q1044q1142q1226q1356q1472q1530q16+164q17+18q18+48q19+56q20+396q99+O(q100) 2 q + 2 q^{2} - 6 q^{3} + 14 q^{4} + 24 q^{5} - 6 q^{6} + 54 q^{8} + 18 q^{9} - 32 q^{10} - 44 q^{11} - 42 q^{12} - 26 q^{13} - 56 q^{14} - 72 q^{15} - 30 q^{16} + 164 q^{17} + 18 q^{18} + 48 q^{19} + 56 q^{20}+ \cdots - 396 q^{99}+O(q^{100}) Copy content Toggle raw display

Embeddings

For each embedding ιm\iota_m of the coefficient field, the values ιm(an)\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   ιm(ν)\iota_m(\nu) a2 a_{2} a3 a_{3} a4 a_{4} a5 a_{5} a6 a_{6} a7 a_{7} a8 a_{8} a9 a_{9} a10 a_{10}
1.1
−3.74166
3.74166
−2.74166 −3.00000 −0.483315 19.4833 8.22497 7.48331 23.2583 9.00000 −53.4166
1.2 4.74166 −3.00000 14.4833 4.51669 −14.2250 −7.48331 30.7417 9.00000 21.4166
nn: e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

p p Sign
33 +1 +1
1313 +1 +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 39.4.a.b 2
3.b odd 2 1 117.4.a.c 2
4.b odd 2 1 624.4.a.r 2
5.b even 2 1 975.4.a.j 2
7.b odd 2 1 1911.4.a.h 2
8.b even 2 1 2496.4.a.bc 2
8.d odd 2 1 2496.4.a.s 2
12.b even 2 1 1872.4.a.t 2
13.b even 2 1 507.4.a.f 2
13.d odd 4 2 507.4.b.f 4
39.d odd 2 1 1521.4.a.s 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
39.4.a.b 2 1.a even 1 1 trivial
117.4.a.c 2 3.b odd 2 1
507.4.a.f 2 13.b even 2 1
507.4.b.f 4 13.d odd 4 2
624.4.a.r 2 4.b odd 2 1
975.4.a.j 2 5.b even 2 1
1521.4.a.s 2 39.d odd 2 1
1872.4.a.t 2 12.b even 2 1
1911.4.a.h 2 7.b odd 2 1
2496.4.a.s 2 8.d odd 2 1
2496.4.a.bc 2 8.b even 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator T222T213 T_{2}^{2} - 2T_{2} - 13 acting on S4new(Γ0(39))S_{4}^{\mathrm{new}}(\Gamma_0(39)). Copy content Toggle raw display

Hecke characteristic polynomials

pp Fp(T)F_p(T)
22 T22T13 T^{2} - 2T - 13 Copy content Toggle raw display
33 (T+3)2 (T + 3)^{2} Copy content Toggle raw display
55 T224T+88 T^{2} - 24T + 88 Copy content Toggle raw display
77 T256 T^{2} - 56 Copy content Toggle raw display
1111 T2+44T1532 T^{2} + 44T - 1532 Copy content Toggle raw display
1313 (T+13)2 (T + 13)^{2} Copy content Toggle raw display
1717 T2164T+6500 T^{2} - 164T + 6500 Copy content Toggle raw display
1919 T248T+520 T^{2} - 48T + 520 Copy content Toggle raw display
2323 T28T32240 T^{2} - 8T - 32240 Copy content Toggle raw display
2929 T2404T+32740 T^{2} - 404T + 32740 Copy content Toggle raw display
3131 T240T9064 T^{2} - 40T - 9064 Copy content Toggle raw display
3737 T2+100T8476 T^{2} + 100T - 8476 Copy content Toggle raw display
4141 T2200T113704 T^{2} - 200T - 113704 Copy content Toggle raw display
4343 T2+616T+57008 T^{2} + 616T + 57008 Copy content Toggle raw display
4747 T2+324T+11908 T^{2} + 324T + 11908 Copy content Toggle raw display
5353 T2+164T194876 T^{2} + 164T - 194876 Copy content Toggle raw display
5959 T2140T17500 T^{2} - 140T - 17500 Copy content Toggle raw display
6161 T2628T160348 T^{2} - 628T - 160348 Copy content Toggle raw display
6767 T2+472T348904 T^{2} + 472T - 348904 Copy content Toggle raw display
7171 T2428T52988 T^{2} - 428T - 52988 Copy content Toggle raw display
7373 T2+900T+121636 T^{2} + 900T + 121636 Copy content Toggle raw display
7979 T2+432T61760 T^{2} + 432T - 61760 Copy content Toggle raw display
8383 T2+1388T+424292 T^{2} + 1388 T + 424292 Copy content Toggle raw display
8989 T2960T275000 T^{2} - 960T - 275000 Copy content Toggle raw display
9797 T2+532T606844 T^{2} + 532T - 606844 Copy content Toggle raw display
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