Properties

Label 2600.2.a.w
Level 26002600
Weight 22
Character orbit 2600.a
Self dual yes
Analytic conductor 20.76120.761
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] = [2600,2,Mod(1,2600)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2600, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 0, 0, 0]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2600.1");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: N N == 2600=235213 2600 = 2^{3} \cdot 5^{2} \cdot 13
Weight: k k == 2 2
Character orbit: [χ][\chi] == 2600.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: 20.761104525520.7611045255
Analytic rank: 00
Dimension: 22
Coefficient field: Q(2)\Q(\sqrt{2})
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: x22 x^{2} - 2 Copy content Toggle raw display
Coefficient ring: Z[a1,a2,a3]\Z[a_1, a_2, a_3]
Coefficient ring index: 1 1
Twist minimal: no (minimal twist has level 520)
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=2\beta = \sqrt{2}. We also show the integral qq-expansion of the trace form.

f(q)f(q) == q+(β+2)q3+2q7+(4β+3)q9+3βq11+q13+(2β+2)q17+(3β4)q19+(2β+4)q21+(5β+2)q23+(8β+8)q27++(9β+24)q99+O(q100) q + (\beta + 2) q^{3} + 2 q^{7} + (4 \beta + 3) q^{9} + 3 \beta q^{11} + q^{13} + (2 \beta + 2) q^{17} + ( - 3 \beta - 4) q^{19} + (2 \beta + 4) q^{21} + ( - 5 \beta + 2) q^{23} + (8 \beta + 8) q^{27}+ \cdots + (9 \beta + 24) q^{99}+O(q^{100}) Copy content Toggle raw display
Tr(f)(q)\operatorname{Tr}(f)(q) == 2q+4q3+4q7+6q9+2q13+4q178q19+8q21+4q23+16q278q29+12q33+8q37+4q39+4q41+12q434q476q49+16q51++48q99+O(q100) 2 q + 4 q^{3} + 4 q^{7} + 6 q^{9} + 2 q^{13} + 4 q^{17} - 8 q^{19} + 8 q^{21} + 4 q^{23} + 16 q^{27} - 8 q^{29} + 12 q^{33} + 8 q^{37} + 4 q^{39} + 4 q^{41} + 12 q^{43} - 4 q^{47} - 6 q^{49} + 16 q^{51}+ \cdots + 48 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
−1.41421
1.41421
0 0.585786 0 0 0 2.00000 0 −2.65685 0
1.2 0 3.41421 0 0 0 2.00000 0 8.65685 0
nn: e.g. 2-40 or 990-1000
Significant digits:
Format:

Atkin-Lehner signs

p p Sign
22 +1 +1
55 +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 2600.2.a.w 2
4.b odd 2 1 5200.2.a.bl 2
5.b even 2 1 520.2.a.c 2
5.c odd 4 2 2600.2.d.i 4
15.d odd 2 1 4680.2.a.w 2
20.d odd 2 1 1040.2.a.n 2
40.e odd 2 1 4160.2.a.u 2
40.f even 2 1 4160.2.a.bn 2
60.h even 2 1 9360.2.a.ck 2
65.d even 2 1 6760.2.a.n 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
520.2.a.c 2 5.b even 2 1
1040.2.a.n 2 20.d odd 2 1
2600.2.a.w 2 1.a even 1 1 trivial
2600.2.d.i 4 5.c odd 4 2
4160.2.a.u 2 40.e odd 2 1
4160.2.a.bn 2 40.f even 2 1
4680.2.a.w 2 15.d odd 2 1
5200.2.a.bl 2 4.b odd 2 1
6760.2.a.n 2 65.d even 2 1
9360.2.a.ck 2 60.h even 2 1

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on S2new(Γ0(2600))S_{2}^{\mathrm{new}}(\Gamma_0(2600)):

T324T3+2 T_{3}^{2} - 4T_{3} + 2 Copy content Toggle raw display
T72 T_{7} - 2 Copy content Toggle raw display
T11218 T_{11}^{2} - 18 Copy content Toggle raw display

Hecke characteristic polynomials

pp Fp(T)F_p(T)
22 T2 T^{2} Copy content Toggle raw display
33 T24T+2 T^{2} - 4T + 2 Copy content Toggle raw display
55 T2 T^{2} Copy content Toggle raw display
77 (T2)2 (T - 2)^{2} Copy content Toggle raw display
1111 T218 T^{2} - 18 Copy content Toggle raw display
1313 (T1)2 (T - 1)^{2} Copy content Toggle raw display
1717 T24T4 T^{2} - 4T - 4 Copy content Toggle raw display
1919 T2+8T2 T^{2} + 8T - 2 Copy content Toggle raw display
2323 T24T46 T^{2} - 4T - 46 Copy content Toggle raw display
2929 T2+8T16 T^{2} + 8T - 16 Copy content Toggle raw display
3131 T22 T^{2} - 2 Copy content Toggle raw display
3737 T28T+8 T^{2} - 8T + 8 Copy content Toggle raw display
4141 T24T4 T^{2} - 4T - 4 Copy content Toggle raw display
4343 T212T+18 T^{2} - 12T + 18 Copy content Toggle raw display
4747 (T+2)2 (T + 2)^{2} Copy content Toggle raw display
5353 T212T+28 T^{2} - 12T + 28 Copy content Toggle raw display
5959 T2+8T+14 T^{2} + 8T + 14 Copy content Toggle raw display
6161 T28T112 T^{2} - 8T - 112 Copy content Toggle raw display
6767 T24T4 T^{2} - 4T - 4 Copy content Toggle raw display
7171 T298 T^{2} - 98 Copy content Toggle raw display
7373 T2+8T+8 T^{2} + 8T + 8 Copy content Toggle raw display
7979 T28T+8 T^{2} - 8T + 8 Copy content Toggle raw display
8383 (T2)2 (T - 2)^{2} Copy content Toggle raw display
8989 (T+10)2 (T + 10)^{2} Copy content Toggle raw display
9797 T2+12T+4 T^{2} + 12T + 4 Copy content Toggle raw display
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