Properties

Label 100.10.c.a
Level $100$
Weight $10$
Character orbit 100.c
Analytic conductor $51.504$
Analytic rank $0$
Dimension $2$
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] = [100,10,Mod(49,100)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(100, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([0, 1]))
 
N = Newforms(chi, 10, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("100.49");
 
S:= CuspForms(chi, 10);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 100 = 2^{2} \cdot 5^{2} \)
Weight: \( k \) \(=\) \( 10 \)
Character orbit: \([\chi]\) \(=\) 100.c (of order \(2\), degree \(1\), not 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: \(51.5035836164\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\sqrt{-1}) \)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2 \)
Twist minimal: no (minimal twist has level 4)
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-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 \(\beta = 2i\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + 114 \beta q^{3} + 3164 \beta q^{7} - 32301 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + 114 \beta q^{3} + 3164 \beta q^{7} - 32301 q^{9} - 30420 q^{11} - 16169 \beta q^{13} - 295497 \beta q^{17} - 34676 q^{19} - 1442784 q^{21} + 524268 \beta q^{23} - 1438452 \beta q^{27} - 4409406 q^{29} - 7401184 q^{31} - 3467880 \beta q^{33} - 5117251 \beta q^{37} + 7373064 q^{39} + 18352746 q^{41} - 126170 \beta q^{43} + 24758568 \beta q^{47} + 310023 q^{49} + 134746632 q^{51} - 33198453 \beta q^{53} - 3953064 \beta q^{57} + 61523748 q^{59} + 35638622 q^{61} - 102200364 \beta q^{63} - 90871186 \beta q^{67} - 239066208 q^{69} + 90904968 q^{71} - 131489339 \beta q^{73} - 96248880 \beta q^{77} + 116502832 q^{79} + 20153529 q^{81} - 4781862 \beta q^{83} - 502672284 \beta q^{87} - 611826714 q^{89} + 204634864 q^{91} - 843734976 \beta q^{93} + 129656399 \beta q^{97} + 982596420 q^{99} +O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q - 64602 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 2 q - 64602 q^{9} - 60840 q^{11} - 69352 q^{19} - 2885568 q^{21} - 8818812 q^{29} - 14802368 q^{31} + 14746128 q^{39} + 36705492 q^{41} + 620046 q^{49} + 269493264 q^{51} + 123047496 q^{59} + 71277244 q^{61} - 478132416 q^{69} + 181809936 q^{71} + 233005664 q^{79} + 40307058 q^{81} - 1223653428 q^{89} + 409269728 q^{91} + 1965192840 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/100\mathbb{Z}\right)^\times\).

\(n\) \(51\) \(77\)
\(\chi(n)\) \(1\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
49.1
1.00000i
1.00000i
0 228.000i 0 0 0 6328.00i 0 −32301.0 0
49.2 0 228.000i 0 0 0 6328.00i 0 −32301.0 0
\(n\): e.g. 2-40 or 990-1000
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
5.b even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 100.10.c.a 2
4.b odd 2 1 400.10.c.a 2
5.b even 2 1 inner 100.10.c.a 2
5.c odd 4 1 4.10.a.a 1
5.c odd 4 1 100.10.a.a 1
15.e even 4 1 36.10.a.b 1
20.d odd 2 1 400.10.c.a 2
20.e even 4 1 16.10.a.a 1
20.e even 4 1 400.10.a.k 1
35.f even 4 1 196.10.a.a 1
35.k even 12 2 196.10.e.b 2
35.l odd 12 2 196.10.e.a 2
40.i odd 4 1 64.10.a.a 1
40.k even 4 1 64.10.a.i 1
45.k odd 12 2 324.10.e.e 2
45.l even 12 2 324.10.e.b 2
60.l odd 4 1 144.10.a.j 1
80.i odd 4 1 256.10.b.j 2
80.j even 4 1 256.10.b.b 2
80.s even 4 1 256.10.b.b 2
80.t odd 4 1 256.10.b.j 2
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
4.10.a.a 1 5.c odd 4 1
16.10.a.a 1 20.e even 4 1
36.10.a.b 1 15.e even 4 1
64.10.a.a 1 40.i odd 4 1
64.10.a.i 1 40.k even 4 1
100.10.a.a 1 5.c odd 4 1
100.10.c.a 2 1.a even 1 1 trivial
100.10.c.a 2 5.b even 2 1 inner
144.10.a.j 1 60.l odd 4 1
196.10.a.a 1 35.f even 4 1
196.10.e.a 2 35.l odd 12 2
196.10.e.b 2 35.k even 12 2
256.10.b.b 2 80.j even 4 1
256.10.b.b 2 80.s even 4 1
256.10.b.j 2 80.i odd 4 1
256.10.b.j 2 80.t odd 4 1
324.10.e.b 2 45.l even 12 2
324.10.e.e 2 45.k odd 12 2
400.10.a.k 1 20.e even 4 1
400.10.c.a 2 4.b odd 2 1
400.10.c.a 2 20.d odd 2 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{2} + 51984 \) acting on \(S_{10}^{\mathrm{new}}(100, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{2} \) Copy content Toggle raw display
$3$ \( T^{2} + 51984 \) Copy content Toggle raw display
$5$ \( T^{2} \) Copy content Toggle raw display
$7$ \( T^{2} + 40043584 \) Copy content Toggle raw display
$11$ \( (T + 30420)^{2} \) Copy content Toggle raw display
$13$ \( T^{2} + 1045746244 \) Copy content Toggle raw display
$17$ \( T^{2} + 349273908036 \) Copy content Toggle raw display
$19$ \( (T + 34676)^{2} \) Copy content Toggle raw display
$23$ \( T^{2} + 1099427743296 \) Copy content Toggle raw display
$29$ \( (T + 4409406)^{2} \) Copy content Toggle raw display
$31$ \( (T + 7401184)^{2} \) Copy content Toggle raw display
$37$ \( T^{2} + 104745031188004 \) Copy content Toggle raw display
$41$ \( (T - 18352746)^{2} \) Copy content Toggle raw display
$43$ \( T^{2} + 63675475600 \) Copy content Toggle raw display
$47$ \( T^{2} + 24\!\cdots\!96 \) Copy content Toggle raw display
$53$ \( T^{2} + 44\!\cdots\!36 \) Copy content Toggle raw display
$59$ \( (T - 61523748)^{2} \) Copy content Toggle raw display
$61$ \( (T - 35638622)^{2} \) Copy content Toggle raw display
$67$ \( T^{2} + 33\!\cdots\!84 \) Copy content Toggle raw display
$71$ \( (T - 90904968)^{2} \) Copy content Toggle raw display
$73$ \( T^{2} + 69\!\cdots\!84 \) Copy content Toggle raw display
$79$ \( (T - 116502832)^{2} \) Copy content Toggle raw display
$83$ \( T^{2} + 91464816748176 \) Copy content Toggle raw display
$89$ \( (T + 611826714)^{2} \) Copy content Toggle raw display
$97$ \( T^{2} + 67\!\cdots\!04 \) Copy content Toggle raw display
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