Properties

Label 495.2.n.c
Level $495$
Weight $2$
Character orbit 495.n
Analytic conductor $3.953$
Analytic rank $0$
Dimension $8$
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] = [495,2,Mod(91,495)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(495, base_ring=CyclotomicField(10))
 
chi = DirichletCharacter(H, H._module([0, 0, 8]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("495.91");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 495 = 3^{2} \cdot 5 \cdot 11 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 495.n (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: \(3.95259490005\)
Analytic rank: \(0\)
Dimension: \(8\)
Relative dimension: \(2\) over \(\Q(\zeta_{5})\)
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: \(\Z[a_1, \ldots, a_{11}]\)
Coefficient ring index: \( 1 \)
Twist minimal: no (minimal twist has level 165)
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 \(\zeta_{15}\). We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \zeta_{15}^{7} + \zeta_{15}^{5} + \cdots + 1) q^{2}+ \cdots + ( - \zeta_{15}^{7} + \cdots - \zeta_{15}^{5}) q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \zeta_{15}^{7} + \zeta_{15}^{5} + \cdots + 1) q^{2}+ \cdots + ( - 2 \zeta_{15}^{7} - \zeta_{15}^{6} + \cdots - 3) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q - 2 q^{2} + 2 q^{4} + 2 q^{5} - 5 q^{7} + q^{8}+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 2 q^{2} + 2 q^{4} + 2 q^{5} - 5 q^{7} + q^{8} + 2 q^{10} + q^{11} - 16 q^{13} + 10 q^{14} + 12 q^{16} + 4 q^{17} + 2 q^{19} + 3 q^{20} - 9 q^{22} - 10 q^{23} - 2 q^{25} - 16 q^{26} - 5 q^{28} + 16 q^{29} - 5 q^{31} + 34 q^{34} - 5 q^{35} - 5 q^{37} - 28 q^{38} - q^{40} - 5 q^{41} - 8 q^{43} + 19 q^{44} + 10 q^{46} + q^{47} - 11 q^{49} - 2 q^{50} + 26 q^{52} + 15 q^{53} - q^{55} - 20 q^{56} - 24 q^{58} - 3 q^{59} - 11 q^{61} + 15 q^{62} - 9 q^{64} - 14 q^{65} + 6 q^{67} - 9 q^{68} - 10 q^{70} - q^{71} - 35 q^{73} - 5 q^{74} + 58 q^{76} + 25 q^{77} - 30 q^{79} + 3 q^{80} - 25 q^{82} - 31 q^{83} - 4 q^{85} + 62 q^{86} + 17 q^{88} + 48 q^{89} + 5 q^{91} + 20 q^{92} - 19 q^{94} - 2 q^{95} + 11 q^{97} - 26 q^{98}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/495\mathbb{Z}\right)^\times\).

\(n\) \(46\) \(56\) \(397\)
\(\chi(n)\) \(-1 + \zeta_{15}^{2} - \zeta_{15}^{3} - \zeta_{15}^{6} + \zeta_{15}^{7}\) \(1\) \(1\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
91.1
0.669131 0.743145i
−0.978148 0.207912i
0.669131 + 0.743145i
−0.978148 + 0.207912i
−0.104528 + 0.994522i
0.913545 0.406737i
−0.104528 0.994522i
0.913545 + 0.406737i
−1.58268 + 1.14988i 0 0.564602 1.73767i 0.809017 + 0.587785i 0 0.478148 1.47159i −0.104528 0.321706i 0 −1.95630
91.2 1.08268 0.786610i 0 −0.0646021 + 0.198825i 0.809017 + 0.587785i 0 −1.16913 + 3.59821i 0.913545 + 2.81160i 0 1.33826
136.1 −1.58268 1.14988i 0 0.564602 + 1.73767i 0.809017 0.587785i 0 0.478148 + 1.47159i −0.104528 + 0.321706i 0 −1.95630
136.2 1.08268 + 0.786610i 0 −0.0646021 0.198825i 0.809017 0.587785i 0 −1.16913 3.59821i 0.913545 2.81160i 0 1.33826
181.1 −0.564602 1.73767i 0 −1.08268 + 0.786610i −0.309017 + 0.951057i 0 −1.41355 + 1.02700i −0.978148 0.710666i 0 1.82709
181.2 0.0646021 + 0.198825i 0 1.58268 1.14988i −0.309017 + 0.951057i 0 −0.395472 + 0.287327i 0.669131 + 0.486152i 0 −0.209057
361.1 −0.564602 + 1.73767i 0 −1.08268 0.786610i −0.309017 0.951057i 0 −1.41355 1.02700i −0.978148 + 0.710666i 0 1.82709
361.2 0.0646021 0.198825i 0 1.58268 + 1.14988i −0.309017 0.951057i 0 −0.395472 0.287327i 0.669131 0.486152i 0 −0.209057
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 91.2
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 495.2.n.c 8
3.b odd 2 1 165.2.m.c 8
11.c even 5 1 inner 495.2.n.c 8
11.c even 5 1 5445.2.a.bj 4
11.d odd 10 1 5445.2.a.bq 4
15.d odd 2 1 825.2.n.j 8
15.e even 4 2 825.2.bx.e 16
33.f even 10 1 1815.2.a.q 4
33.h odd 10 1 165.2.m.c 8
33.h odd 10 1 1815.2.a.u 4
165.o odd 10 1 825.2.n.j 8
165.o odd 10 1 9075.2.a.co 4
165.r even 10 1 9075.2.a.df 4
165.v even 20 2 825.2.bx.e 16
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
165.2.m.c 8 3.b odd 2 1
165.2.m.c 8 33.h odd 10 1
495.2.n.c 8 1.a even 1 1 trivial
495.2.n.c 8 11.c even 5 1 inner
825.2.n.j 8 15.d odd 2 1
825.2.n.j 8 165.o odd 10 1
825.2.bx.e 16 15.e even 4 2
825.2.bx.e 16 165.v even 20 2
1815.2.a.q 4 33.f even 10 1
1815.2.a.u 4 33.h odd 10 1
5445.2.a.bj 4 11.c even 5 1
5445.2.a.bq 4 11.d odd 10 1
9075.2.a.co 4 165.o odd 10 1
9075.2.a.df 4 165.r even 10 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{8} + 2T_{2}^{7} + 3T_{2}^{6} - T_{2}^{5} - T_{2}^{3} + 23T_{2}^{2} - 3T_{2} + 1 \) acting on \(S_{2}^{\mathrm{new}}(495, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} + 2 T^{7} + \cdots + 1 \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( (T^{4} - T^{3} + T^{2} + \cdots + 1)^{2} \) Copy content Toggle raw display
$7$ \( T^{8} + 5 T^{7} + \cdots + 25 \) Copy content Toggle raw display
$11$ \( T^{8} - T^{7} + \cdots + 14641 \) Copy content Toggle raw display
$13$ \( T^{8} + 16 T^{7} + \cdots + 128881 \) Copy content Toggle raw display
$17$ \( T^{8} - 4 T^{7} + \cdots + 3481 \) Copy content Toggle raw display
$19$ \( T^{8} - 2 T^{7} + \cdots + 57121 \) Copy content Toggle raw display
$23$ \( (T^{4} + 5 T^{3} - 25 T^{2} + \cdots - 5)^{2} \) Copy content Toggle raw display
$29$ \( T^{8} - 16 T^{7} + \cdots + 175561 \) Copy content Toggle raw display
$31$ \( T^{8} + 5 T^{7} + \cdots + 25 \) Copy content Toggle raw display
$37$ \( T^{8} + 5 T^{7} + \cdots + 24025 \) Copy content Toggle raw display
$41$ \( T^{8} + 5 T^{7} + \cdots + 25 \) Copy content Toggle raw display
$43$ \( (T^{4} + 4 T^{3} + \cdots - 569)^{2} \) Copy content Toggle raw display
$47$ \( T^{8} - T^{7} + \cdots + 14641 \) Copy content Toggle raw display
$53$ \( T^{8} - 15 T^{7} + \cdots + 625 \) Copy content Toggle raw display
$59$ \( T^{8} + 3 T^{7} + \cdots + 1798281 \) Copy content Toggle raw display
$61$ \( T^{8} + 11 T^{7} + \cdots + 43178041 \) Copy content Toggle raw display
$67$ \( (T^{4} - 3 T^{3} - 46 T^{2} + \cdots + 31)^{2} \) Copy content Toggle raw display
$71$ \( T^{8} + T^{7} + \cdots + 151321 \) Copy content Toggle raw display
$73$ \( T^{8} + 35 T^{7} + \cdots + 17682025 \) Copy content Toggle raw display
$79$ \( T^{8} + 30 T^{7} + \cdots + 93025 \) Copy content Toggle raw display
$83$ \( T^{8} + 31 T^{7} + \cdots + 215179561 \) Copy content Toggle raw display
$89$ \( (T^{4} - 24 T^{3} + \cdots - 31869)^{2} \) Copy content Toggle raw display
$97$ \( T^{8} - 11 T^{7} + \cdots + 3721 \) Copy content Toggle raw display
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