Properties

Label 2695.1.ca.b
Level $2695$
Weight $1$
Character orbit 2695.ca
Analytic conductor $1.345$
Analytic rank $0$
Dimension $8$
Projective image $D_{5}$
CM discriminant -35
Inner twists $8$

Related objects

Downloads

Learn more

Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [2695,1,Mod(509,2695)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(2695, base_ring=CyclotomicField(30))
 
chi = DirichletCharacter(H, H._module([15, 25, 24]))
 
N = Newforms(chi, 1, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("2695.509");
 
S:= CuspForms(chi, 1);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 2695 = 5 \cdot 7^{2} \cdot 11 \)
Weight: \( k \) \(=\) \( 1 \)
Character orbit: \([\chi]\) \(=\) 2695.ca (of order \(30\), degree \(8\), 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: \(1.34498020905\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: \(\Q(\zeta_{15})\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} - x^{7} + x^{5} - x^{4} + x^{3} - x + 1 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{4}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 385)
Projective image: \(D_{5}\)
Projective field: Galois closure of 5.1.17935225.1

$q$-expansion

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

The \(q\)-expansion and trace form are shown below.

\(f(q)\) \(=\) \( q + (\zeta_{30}^{5} - \zeta_{30}^{2}) q^{3} + \zeta_{30}^{14} q^{4} + \zeta_{30}^{13} q^{5} + (\zeta_{30}^{10} + \cdots + \zeta_{30}^{4}) q^{9}+O(q^{10}) \) Copy content Toggle raw display \( q + (\zeta_{30}^{5} - \zeta_{30}^{2}) q^{3} + \zeta_{30}^{14} q^{4} + \zeta_{30}^{13} q^{5} + (\zeta_{30}^{10} + \cdots + \zeta_{30}^{4}) q^{9}+ \cdots + (\zeta_{30}^{12} + \cdots + \zeta_{30}^{6}) q^{99}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q + 3 q^{3} + q^{4} - q^{5} - 2 q^{9}+O(q^{10}) \) Copy content Toggle raw display \( 8 q + 3 q^{3} + q^{4} - q^{5} - 2 q^{9} + q^{11} - 2 q^{12} + 4 q^{13} + 6 q^{15} + q^{16} + 3 q^{17} + 2 q^{20} + q^{25} - 2 q^{27} - 4 q^{29} - 2 q^{33} - 6 q^{36} - q^{39} + q^{44} + 2 q^{45} - 2 q^{47} - 6 q^{48} - q^{51} + 3 q^{52} - 8 q^{55} + 2 q^{60} - 2 q^{64} + 2 q^{65} + 3 q^{68} - 4 q^{71} - 2 q^{73} - 2 q^{75} + 2 q^{79} - q^{80} + 4 q^{83} - 4 q^{85} - 4 q^{87} - 6 q^{97} - 6 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/2695\mathbb{Z}\right)^\times\).

\(n\) \(981\) \(1816\) \(2157\)
\(\chi(n)\) \(-\zeta_{30}^{9}\) \(-\zeta_{30}^{10}\) \(-1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
509.1
−0.978148 0.207912i
0.669131 0.743145i
−0.104528 0.994522i
0.913545 + 0.406737i
0.669131 + 0.743145i
−0.978148 + 0.207912i
0.913545 0.406737i
−0.104528 + 0.994522i
0 −0.413545 + 0.459289i −0.978148 + 0.207912i −0.913545 + 0.406737i 0 0 0 0.0646021 + 0.614648i 0
619.1 0 0.604528 + 0.128496i 0.669131 + 0.743145i 0.104528 0.994522i 0 0 0 −0.564602 0.251377i 0
999.1 0 1.47815 + 0.658114i −0.104528 + 0.994522i 0.978148 + 0.207912i 0 0 0 1.08268 + 1.20243i 0
1109.1 0 −0.169131 1.60917i 0.913545 0.406737i −0.669131 + 0.743145i 0 0 0 −1.58268 + 0.336408i 0
1489.1 0 0.604528 0.128496i 0.669131 0.743145i 0.104528 + 0.994522i 0 0 0 −0.564602 + 0.251377i 0
1599.1 0 −0.413545 0.459289i −0.978148 0.207912i −0.913545 0.406737i 0 0 0 0.0646021 0.614648i 0
2469.1 0 −0.169131 + 1.60917i 0.913545 + 0.406737i −0.669131 0.743145i 0 0 0 −1.58268 0.336408i 0
2579.1 0 1.47815 0.658114i −0.104528 0.994522i 0.978148 0.207912i 0 0 0 1.08268 1.20243i 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 509.1
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
35.c odd 2 1 CM by \(\Q(\sqrt{-35}) \)
7.c even 3 1 inner
11.c even 5 1 inner
35.i odd 6 1 inner
77.m even 15 1 inner
385.y odd 10 1 inner
385.bn odd 30 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 2695.1.ca.b 8
5.b even 2 1 2695.1.ca.a 8
7.b odd 2 1 2695.1.ca.a 8
7.c even 3 1 385.1.y.a 4
7.c even 3 1 inner 2695.1.ca.b 8
7.d odd 6 1 385.1.y.b yes 4
7.d odd 6 1 2695.1.ca.a 8
11.c even 5 1 inner 2695.1.ca.b 8
21.g even 6 1 3465.1.dt.b 4
21.h odd 6 1 3465.1.dt.a 4
35.c odd 2 1 CM 2695.1.ca.b 8
35.i odd 6 1 385.1.y.a 4
35.i odd 6 1 inner 2695.1.ca.b 8
35.j even 6 1 385.1.y.b yes 4
35.j even 6 1 2695.1.ca.a 8
35.k even 12 2 1925.1.bn.c 8
35.l odd 12 2 1925.1.bn.c 8
55.j even 10 1 2695.1.ca.a 8
77.j odd 10 1 2695.1.ca.a 8
77.m even 15 1 385.1.y.a 4
77.m even 15 1 inner 2695.1.ca.b 8
77.p odd 30 1 385.1.y.b yes 4
77.p odd 30 1 2695.1.ca.a 8
105.o odd 6 1 3465.1.dt.b 4
105.p even 6 1 3465.1.dt.a 4
231.z odd 30 1 3465.1.dt.a 4
231.bc even 30 1 3465.1.dt.b 4
385.y odd 10 1 inner 2695.1.ca.b 8
385.bm even 30 1 385.1.y.b yes 4
385.bm even 30 1 2695.1.ca.a 8
385.bn odd 30 1 385.1.y.a 4
385.bn odd 30 1 inner 2695.1.ca.b 8
385.bt odd 60 2 1925.1.bn.c 8
385.bu even 60 2 1925.1.bn.c 8
1155.dd even 30 1 3465.1.dt.a 4
1155.dj odd 30 1 3465.1.dt.b 4
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
385.1.y.a 4 7.c even 3 1
385.1.y.a 4 35.i odd 6 1
385.1.y.a 4 77.m even 15 1
385.1.y.a 4 385.bn odd 30 1
385.1.y.b yes 4 7.d odd 6 1
385.1.y.b yes 4 35.j even 6 1
385.1.y.b yes 4 77.p odd 30 1
385.1.y.b yes 4 385.bm even 30 1
1925.1.bn.c 8 35.k even 12 2
1925.1.bn.c 8 35.l odd 12 2
1925.1.bn.c 8 385.bt odd 60 2
1925.1.bn.c 8 385.bu even 60 2
2695.1.ca.a 8 5.b even 2 1
2695.1.ca.a 8 7.b odd 2 1
2695.1.ca.a 8 7.d odd 6 1
2695.1.ca.a 8 35.j even 6 1
2695.1.ca.a 8 55.j even 10 1
2695.1.ca.a 8 77.j odd 10 1
2695.1.ca.a 8 77.p odd 30 1
2695.1.ca.a 8 385.bm even 30 1
2695.1.ca.b 8 1.a even 1 1 trivial
2695.1.ca.b 8 7.c even 3 1 inner
2695.1.ca.b 8 11.c even 5 1 inner
2695.1.ca.b 8 35.c odd 2 1 CM
2695.1.ca.b 8 35.i odd 6 1 inner
2695.1.ca.b 8 77.m even 15 1 inner
2695.1.ca.b 8 385.y odd 10 1 inner
2695.1.ca.b 8 385.bn odd 30 1 inner
3465.1.dt.a 4 21.h odd 6 1
3465.1.dt.a 4 105.p even 6 1
3465.1.dt.a 4 231.z odd 30 1
3465.1.dt.a 4 1155.dd even 30 1
3465.1.dt.b 4 21.g even 6 1
3465.1.dt.b 4 105.o odd 6 1
3465.1.dt.b 4 231.bc even 30 1
3465.1.dt.b 4 1155.dj odd 30 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{3}^{8} - 3T_{3}^{7} + 5T_{3}^{6} - 8T_{3}^{5} + 9T_{3}^{4} - 2T_{3}^{3} - 2T_{3} + 1 \) acting on \(S_{1}^{\mathrm{new}}(2695, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( T^{8} - 3 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$5$ \( T^{8} + T^{7} - T^{5} + \cdots + 1 \) Copy content Toggle raw display
$7$ \( T^{8} \) Copy content Toggle raw display
$11$ \( T^{8} - T^{7} + T^{5} + \cdots + 1 \) Copy content Toggle raw display
$13$ \( (T^{4} - 2 T^{3} + 4 T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$17$ \( T^{8} - 3 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$19$ \( T^{8} \) Copy content Toggle raw display
$23$ \( T^{8} \) Copy content Toggle raw display
$29$ \( (T^{4} + 2 T^{3} + 4 T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$31$ \( T^{8} \) Copy content Toggle raw display
$37$ \( T^{8} \) Copy content Toggle raw display
$41$ \( T^{8} \) Copy content Toggle raw display
$43$ \( T^{8} \) Copy content Toggle raw display
$47$ \( T^{8} + 2 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$53$ \( T^{8} \) Copy content Toggle raw display
$59$ \( T^{8} \) Copy content Toggle raw display
$61$ \( T^{8} \) Copy content Toggle raw display
$67$ \( T^{8} \) Copy content Toggle raw display
$71$ \( (T^{4} + 2 T^{3} + 4 T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$73$ \( T^{8} + 2 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$79$ \( T^{8} - 2 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$83$ \( (T^{4} - 2 T^{3} + 4 T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$89$ \( T^{8} \) Copy content Toggle raw display
$97$ \( (T^{4} + 3 T^{3} + 4 T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
show more
show less