Properties

Label 99.2.f.b
Level $99$
Weight $2$
Character orbit 99.f
Analytic conductor $0.791$
Analytic rank $0$
Dimension $4$
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] = [99,2,Mod(37,99)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(99, base_ring=CyclotomicField(10))
 
chi = DirichletCharacter(H, H._module([0, 2]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("99.37");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 99 = 3^{2} \cdot 11 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 99.f (of order \(5\), degree \(4\), 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: \(0.790518980011\)
Analytic rank: \(0\)
Dimension: \(4\)
Coefficient field: \(\Q(\zeta_{10})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{4} - x^{3} + x^{2} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 33)
Sato-Tate group: $\mathrm{SU}(2)[C_{5}]$

$q$-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 \(\zeta_{10}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \zeta_{10}^{3} + 1) q^{2} + ( - \zeta_{10} + 1) q^{4} + (\zeta_{10}^{2} - 2 \zeta_{10} + 1) q^{5} - 3 \zeta_{10}^{3} q^{7} + (2 \zeta_{10}^{3} + \cdots + 2 \zeta_{10}) q^{8} +O(q^{10}) \) Copy content Toggle raw display \( q + ( - \zeta_{10}^{3} + 1) q^{2} + ( - \zeta_{10} + 1) q^{4} + (\zeta_{10}^{2} - 2 \zeta_{10} + 1) q^{5} - 3 \zeta_{10}^{3} q^{7} + (2 \zeta_{10}^{3} + \cdots + 2 \zeta_{10}) q^{8} + \cdots + (2 \zeta_{10}^{3} - 2 \zeta_{10}^{2} - 2) q^{98} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 4 q + 3 q^{2} + 3 q^{4} + q^{5} - 3 q^{7} + 5 q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 4 q + 3 q^{2} + 3 q^{4} + q^{5} - 3 q^{7} + 5 q^{8} + 2 q^{10} - 9 q^{11} - 9 q^{13} - 6 q^{14} + 9 q^{16} - 2 q^{17} - 10 q^{19} - 3 q^{20} - 8 q^{22} + 4 q^{23} - 6 q^{25} - 8 q^{26} - 6 q^{28} + 10 q^{29} + 8 q^{31} + 18 q^{32} - 4 q^{34} + 3 q^{35} - 3 q^{37} + 10 q^{40} - 23 q^{41} + 16 q^{43} + 2 q^{44} + 13 q^{46} + 3 q^{47} - 2 q^{49} - 12 q^{50} + 7 q^{52} - 6 q^{53} + 14 q^{55} + 20 q^{59} + 3 q^{61} + q^{62} - 7 q^{64} + 14 q^{65} + 2 q^{67} + q^{68} - 9 q^{70} + 27 q^{71} + 6 q^{73} + 4 q^{74} - 20 q^{76} + 3 q^{77} + 5 q^{79} - 9 q^{80} - 11 q^{82} - 21 q^{83} + 7 q^{85} + 7 q^{86} - 25 q^{88} - 20 q^{89} + 3 q^{91} - 7 q^{92} + q^{94} - 25 q^{95} - 33 q^{97} - 4 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/99\mathbb{Z}\right)^\times\).

\(n\) \(46\) \(56\)
\(\chi(n)\) \(-\zeta_{10}^{3}\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
37.1
0.809017 0.587785i
−0.309017 0.951057i
−0.309017 + 0.951057i
0.809017 + 0.587785i
1.30902 + 0.951057i 0 0.190983 + 0.587785i −0.309017 + 0.224514i 0 0.927051 + 2.85317i 0.690983 2.12663i 0 −0.618034
64.1 0.190983 0.587785i 0 1.30902 + 0.951057i 0.809017 + 2.48990i 0 −2.42705 1.76336i 1.80902 1.31433i 0 1.61803
82.1 0.190983 + 0.587785i 0 1.30902 0.951057i 0.809017 2.48990i 0 −2.42705 + 1.76336i 1.80902 + 1.31433i 0 1.61803
91.1 1.30902 0.951057i 0 0.190983 0.587785i −0.309017 0.224514i 0 0.927051 2.85317i 0.690983 + 2.12663i 0 −0.618034
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
11.c even 5 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 99.2.f.b 4
3.b odd 2 1 33.2.e.a 4
9.c even 3 2 891.2.n.a 8
9.d odd 6 2 891.2.n.d 8
11.c even 5 1 inner 99.2.f.b 4
11.c even 5 1 1089.2.a.m 2
11.d odd 10 1 1089.2.a.s 2
12.b even 2 1 528.2.y.f 4
15.d odd 2 1 825.2.n.f 4
15.e even 4 2 825.2.bx.b 8
33.d even 2 1 363.2.e.j 4
33.f even 10 1 363.2.a.e 2
33.f even 10 2 363.2.e.c 4
33.f even 10 1 363.2.e.j 4
33.h odd 10 1 33.2.e.a 4
33.h odd 10 1 363.2.a.h 2
33.h odd 10 2 363.2.e.h 4
99.m even 15 2 891.2.n.a 8
99.n odd 30 2 891.2.n.d 8
132.n odd 10 1 5808.2.a.bm 2
132.o even 10 1 528.2.y.f 4
132.o even 10 1 5808.2.a.bl 2
165.o odd 10 1 825.2.n.f 4
165.o odd 10 1 9075.2.a.x 2
165.r even 10 1 9075.2.a.bv 2
165.v even 20 2 825.2.bx.b 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
33.2.e.a 4 3.b odd 2 1
33.2.e.a 4 33.h odd 10 1
99.2.f.b 4 1.a even 1 1 trivial
99.2.f.b 4 11.c even 5 1 inner
363.2.a.e 2 33.f even 10 1
363.2.a.h 2 33.h odd 10 1
363.2.e.c 4 33.f even 10 2
363.2.e.h 4 33.h odd 10 2
363.2.e.j 4 33.d even 2 1
363.2.e.j 4 33.f even 10 1
528.2.y.f 4 12.b even 2 1
528.2.y.f 4 132.o even 10 1
825.2.n.f 4 15.d odd 2 1
825.2.n.f 4 165.o odd 10 1
825.2.bx.b 8 15.e even 4 2
825.2.bx.b 8 165.v even 20 2
891.2.n.a 8 9.c even 3 2
891.2.n.a 8 99.m even 15 2
891.2.n.d 8 9.d odd 6 2
891.2.n.d 8 99.n odd 30 2
1089.2.a.m 2 11.c even 5 1
1089.2.a.s 2 11.d odd 10 1
5808.2.a.bl 2 132.o even 10 1
5808.2.a.bm 2 132.n odd 10 1
9075.2.a.x 2 165.o odd 10 1
9075.2.a.bv 2 165.r even 10 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{4} - 3T_{2}^{3} + 4T_{2}^{2} - 2T_{2} + 1 \) acting on \(S_{2}^{\mathrm{new}}(99, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{4} - 3 T^{3} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( T^{4} \) Copy content Toggle raw display
$5$ \( T^{4} - T^{3} + 6 T^{2} + \cdots + 1 \) Copy content Toggle raw display
$7$ \( T^{4} + 3 T^{3} + \cdots + 81 \) Copy content Toggle raw display
$11$ \( T^{4} + 9 T^{3} + \cdots + 121 \) Copy content Toggle raw display
$13$ \( T^{4} + 9 T^{3} + \cdots + 121 \) Copy content Toggle raw display
$17$ \( T^{4} + 2 T^{3} + \cdots + 1 \) Copy content Toggle raw display
$19$ \( T^{4} + 10 T^{3} + \cdots + 25 \) Copy content Toggle raw display
$23$ \( (T^{2} - 2 T - 19)^{2} \) Copy content Toggle raw display
$29$ \( T^{4} - 10 T^{3} + \cdots + 400 \) Copy content Toggle raw display
$31$ \( T^{4} - 8 T^{3} + \cdots + 121 \) Copy content Toggle raw display
$37$ \( T^{4} + 3 T^{3} + \cdots + 1 \) Copy content Toggle raw display
$41$ \( T^{4} + 23 T^{3} + \cdots + 5041 \) Copy content Toggle raw display
$43$ \( (T^{2} - 8 T + 11)^{2} \) Copy content Toggle raw display
$47$ \( T^{4} - 3 T^{3} + \cdots + 1 \) Copy content Toggle raw display
$53$ \( T^{4} + 6 T^{3} + \cdots + 5041 \) Copy content Toggle raw display
$59$ \( T^{4} - 20 T^{3} + \cdots + 3025 \) Copy content Toggle raw display
$61$ \( T^{4} - 3 T^{3} + \cdots + 81 \) Copy content Toggle raw display
$67$ \( (T^{2} - T - 101)^{2} \) Copy content Toggle raw display
$71$ \( T^{4} - 27 T^{3} + \cdots + 6561 \) Copy content Toggle raw display
$73$ \( T^{4} - 6 T^{3} + \cdots + 16 \) Copy content Toggle raw display
$79$ \( T^{4} - 5 T^{3} + \cdots + 25 \) Copy content Toggle raw display
$83$ \( T^{4} + 21 T^{3} + \cdots + 81 \) Copy content Toggle raw display
$89$ \( (T^{2} + 10 T + 5)^{2} \) Copy content Toggle raw display
$97$ \( T^{4} + 33 T^{3} + \cdots + 44521 \) Copy content Toggle raw display
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