Properties

Label 405.2.m.b
Level $405$
Weight $2$
Character orbit 405.m
Analytic conductor $3.234$
Analytic rank $0$
Dimension $16$
CM no
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [405,2,Mod(53,405)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(405, base_ring=CyclotomicField(12))
 
chi = DirichletCharacter(H, H._module([10, 9]))
 
N = Newforms(chi, 2, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("405.53");
 
S:= CuspForms(chi, 2);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 405 = 3^{4} \cdot 5 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 405.m (of order \(12\), degree \(4\), 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: \(3.23394128186\)
Analytic rank: \(0\)
Dimension: \(16\)
Relative dimension: \(4\) over \(\Q(\zeta_{12})\)
Coefficient field: \(\mathbb{Q}[x]/(x^{16} - \cdots)\)
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{16} - 12x^{14} + 100x^{12} - 408x^{10} + 1191x^{8} - 2040x^{6} + 2500x^{4} - 1500x^{2} + 625 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{5}]\)
Coefficient ring index: \( 3^{4} \)
Twist minimal: no (minimal twist has level 135)
Sato-Tate group: $\mathrm{SU}(2)[C_{12}]$

$q$-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 basis \(1,\beta_1,\ldots,\beta_{15}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + ( - \beta_{10} + \beta_{9}) q^{2} + ( - \beta_{14} - \beta_{13} - 2 \beta_1) q^{4} + \beta_{7} q^{5} + ( - \beta_{14} - \beta_{8} - \beta_{6} + \cdots - 1) q^{7}+ \cdots + (\beta_{12} + \beta_{10} + \cdots - \beta_{2}) q^{8}+O(q^{10}) \) Copy content Toggle raw display \( q + ( - \beta_{10} + \beta_{9}) q^{2} + ( - \beta_{14} - \beta_{13} - 2 \beta_1) q^{4} + \beta_{7} q^{5} + ( - \beta_{14} - \beta_{8} - \beta_{6} + \cdots - 1) q^{7}+ \cdots + ( - 2 \beta_{10} + 4 \beta_{3}) q^{98}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 16 q - 8 q^{7}+O(q^{10}) \) Copy content Toggle raw display \( 16 q - 8 q^{7} - 32 q^{10} + 16 q^{13} + 16 q^{16} + 8 q^{22} - 8 q^{25} + 80 q^{28} - 16 q^{31} - 32 q^{37} - 72 q^{40} - 8 q^{43} - 64 q^{46} - 8 q^{52} - 64 q^{55} + 72 q^{58} + 8 q^{61} + 40 q^{67} + 72 q^{70} + 16 q^{73} - 48 q^{76} + 176 q^{82} - 8 q^{85} - 48 q^{88} - 16 q^{91} - 32 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{16} - 12x^{14} + 100x^{12} - 408x^{10} + 1191x^{8} - 2040x^{6} + 2500x^{4} - 1500x^{2} + 625 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( 162 \nu^{14} + 1386 \nu^{12} + 190 \nu^{10} + 31754 \nu^{8} + 610802 \nu^{6} - 1207925 \nu^{4} + \cdots + 1408250 ) / 3170625 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( - 2373 \nu^{15} + 25681 \nu^{13} - 196935 \nu^{11} + 583909 \nu^{9} - 895008 \nu^{7} + \cdots - 11788000 \nu ) / 3170625 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 519 \nu^{15} - 11728 \nu^{13} + 111150 \nu^{11} - 674877 \nu^{9} + 2149629 \nu^{7} + \cdots - 3584500 \nu ) / 634125 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( - 3012 \nu^{15} + 20214 \nu^{13} - 103740 \nu^{11} - 410329 \nu^{9} + 3154398 \nu^{7} + \cdots - 14407000 \nu ) / 3170625 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( - 4084 \nu^{14} + 46148 \nu^{12} - 378480 \nu^{10} + 1425447 \nu^{8} - 4067664 \nu^{6} + \cdots + 4996625 ) / 3170625 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( 831 \nu^{14} - 5647 \nu^{12} + 31350 \nu^{10} + 79902 \nu^{8} - 618129 \nu^{6} + 2318760 \nu^{4} + \cdots + 2262875 ) / 634125 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 6679 \nu^{15} - 104788 \nu^{13} + 934230 \nu^{11} - 4799832 \nu^{9} + 14815809 \nu^{7} + \cdots - 16577875 \nu ) / 3170625 \) Copy content Toggle raw display
\(\beta_{8}\)\(=\) \( ( -12\nu^{14} + 119\nu^{12} - 950\nu^{10} + 2996\nu^{8} - 8842\nu^{6} + 12730\nu^{4} - 19550\nu^{2} + 7750 ) / 7125 \) Copy content Toggle raw display
\(\beta_{9}\)\(=\) \( ( 8461 \nu^{15} - 107342 \nu^{13} + 894045 \nu^{11} - 3816413 \nu^{9} + 10830156 \nu^{7} + \cdots - 17051500 \nu ) / 3170625 \) Copy content Toggle raw display
\(\beta_{10}\)\(=\) \( ( - 2447 \nu^{15} + 25839 \nu^{13} - 206625 \nu^{11} + 696751 \nu^{9} - 1875177 \nu^{7} + \cdots - 983375 \nu ) / 634125 \) Copy content Toggle raw display
\(\beta_{11}\)\(=\) \( ( - 10471 \nu^{14} + 144287 \nu^{12} - 1218945 \nu^{10} + 5567493 \nu^{8} - 15642291 \nu^{6} + \cdots + 14057750 ) / 3170625 \) Copy content Toggle raw display
\(\beta_{12}\)\(=\) \( ( - 15193 \nu^{15} + 176571 \nu^{13} - 1460910 \nu^{11} + 5690969 \nu^{9} - 16206903 \nu^{7} + \cdots + 4211375 \nu ) / 3170625 \) Copy content Toggle raw display
\(\beta_{13}\)\(=\) \( ( 12874 \nu^{14} - 123728 \nu^{12} + 939930 \nu^{10} - 2489517 \nu^{8} + 5326479 \nu^{6} + \cdots + 7535875 ) / 3170625 \) Copy content Toggle raw display
\(\beta_{14}\)\(=\) \( ( 14343 \nu^{14} - 183596 \nu^{12} + 1544985 \nu^{10} - 6645669 \nu^{8} + 18837978 \nu^{6} + \cdots - 11347625 ) / 3170625 \) Copy content Toggle raw display
\(\beta_{15}\)\(=\) \( ( 19846 \nu^{15} - 243562 \nu^{13} + 2011245 \nu^{11} - 8254868 \nu^{9} + 22837116 \nu^{7} + \cdots - 19270875 \nu ) / 3170625 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{15} + \beta_{10} - \beta_{9} + \beta_{7} + \beta_{4} - 2\beta_{3} - \beta_{2} ) / 3 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( -\beta_{14} + \beta_{13} + \beta_{11} + 3\beta_{8} - 2\beta_{6} - 9\beta_{5} - 3\beta _1 + 9 ) / 3 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -4\beta_{15} + 3\beta_{12} - 4\beta_{10} + \beta_{9} + 11\beta_{7} - 7\beta_{4} - 4\beta_{3} + 7\beta_{2} ) / 3 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( -6\beta_{14} + 6\beta_{13} - 4\beta_{11} + 14\beta_{8} - 4\beta_{6} - 14\beta_{5} + 7\beta_1 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( -67\beta_{15} + 51\beta_{12} - 97\beta_{10} + 46\beta_{9} + 47\beta_{7} - 67\beta_{4} + 47\beta_{3} + 46\beta_{2} ) / 3 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( -95\beta_{14} + 38\beta_{13} - 133\beta_{11} + 135\beta_{8} + 38\beta_{6} + 270\beta _1 - 243 ) / 3 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( - 311 \beta_{15} + 228 \beta_{12} - 482 \beta_{10} + 347 \beta_{9} - 119 \beta_{7} + \cdots - 52 \beta_{2} ) / 3 \) Copy content Toggle raw display
\(\nu^{8}\)\(=\) \( 84\beta_{14} - 224\beta_{13} - 84\beta_{11} - 292\beta_{8} + 308\beta_{6} + 511\beta_{5} + 292\beta _1 - 511 \) Copy content Toggle raw display
\(\nu^{9}\)\(=\) \( ( 763 \beta_{15} - 876 \beta_{12} + 1183 \beta_{10} + 413 \beta_{9} - 2822 \beta_{7} + \cdots - 2359 \beta_{2} ) / 3 \) Copy content Toggle raw display
\(\nu^{10}\)\(=\) \( ( 6266\beta_{14} - 6266\beta_{13} + 4579\beta_{11} - 11514\beta_{8} + 4579\beta_{6} + 9999\beta_{5} - 5757\beta_1 ) / 3 \) Copy content Toggle raw display
\(\nu^{11}\)\(=\) \( ( 18689 \beta_{15} - 16602 \beta_{12} + 29534 \beta_{10} - 12932 \beta_{9} - 13669 \beta_{7} + \cdots - 12932 \beta_{2} ) / 3 \) Copy content Toggle raw display
\(\nu^{12}\)\(=\) \( 10260\beta_{14} - 3762\beta_{13} + 14022\beta_{11} - 12705\beta_{8} - 3762\beta_{6} - 25410\beta _1 + 22022 \) Copy content Toggle raw display
\(\nu^{13}\)\(=\) \( ( 90917 \beta_{15} - 72846 \beta_{12} + 144269 \beta_{10} - 106154 \beta_{9} + 33308 \beta_{7} + \cdots + 20044 \beta_{2} ) / 3 \) Copy content Toggle raw display
\(\nu^{14}\)\(=\) \( ( - 75374 \beta_{14} + 205829 \beta_{13} + 75374 \beta_{11} + 253257 \beta_{8} - 281203 \beta_{6} + \cdots + 438741 ) / 3 \) Copy content Toggle raw display
\(\nu^{15}\)\(=\) \( ( - 221621 \beta_{15} + 253257 \beta_{12} - 352076 \beta_{10} - 134956 \beta_{9} + \cdots + 708653 \beta_{2} ) / 3 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/405\mathbb{Z}\right)^\times\).

\(n\) \(82\) \(326\)
\(\chi(n)\) \(\beta_{8}\) \(\beta_{5}\)

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   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
53.1
0.750156 + 0.433103i
1.15723 + 0.668129i
−1.15723 0.668129i
−0.750156 0.433103i
0.750156 0.433103i
1.15723 0.668129i
−1.15723 + 0.668129i
−0.750156 + 0.433103i
−1.44919 + 0.836690i
2.23560 1.29073i
−2.23560 + 1.29073i
1.44919 0.836690i
−1.44919 0.836690i
2.23560 + 1.29073i
−2.23560 1.29073i
1.44919 + 0.836690i
−0.657293 + 2.45305i 0 −3.85337 2.22474i −1.44919 + 1.70289i 0 −3.03906 0.814313i 4.39869 4.39869i 0 −3.22474 4.67423i
53.2 −0.322280 + 1.20277i 0 0.389270 + 0.224745i 2.23560 + 0.0455319i 0 0.307007 + 0.0822623i −2.15674 + 2.15674i 0 −0.775255 + 2.67423i
53.3 0.322280 1.20277i 0 0.389270 + 0.224745i −2.23560 0.0455319i 0 0.307007 + 0.0822623i 2.15674 2.15674i 0 −0.775255 + 2.67423i
53.4 0.657293 2.45305i 0 −3.85337 2.22474i 1.44919 1.70289i 0 −3.03906 0.814313i −4.39869 + 4.39869i 0 −3.22474 4.67423i
107.1 −0.657293 2.45305i 0 −3.85337 + 2.22474i −1.44919 1.70289i 0 −3.03906 + 0.814313i 4.39869 + 4.39869i 0 −3.22474 + 4.67423i
107.2 −0.322280 1.20277i 0 0.389270 0.224745i 2.23560 0.0455319i 0 0.307007 0.0822623i −2.15674 2.15674i 0 −0.775255 2.67423i
107.3 0.322280 + 1.20277i 0 0.389270 0.224745i −2.23560 + 0.0455319i 0 0.307007 0.0822623i 2.15674 + 2.15674i 0 −0.775255 2.67423i
107.4 0.657293 + 2.45305i 0 −3.85337 + 2.22474i 1.44919 + 1.70289i 0 −3.03906 + 0.814313i −4.39869 4.39869i 0 −3.22474 + 4.67423i
188.1 −2.45305 + 0.657293i 0 3.85337 2.22474i 0.750156 + 2.10648i 0 0.814313 + 3.03906i −4.39869 + 4.39869i 0 −3.22474 4.67423i
188.2 −1.20277 + 0.322280i 0 −0.389270 + 0.224745i 1.15723 1.91332i 0 −0.0822623 0.307007i 2.15674 2.15674i 0 −0.775255 + 2.67423i
188.3 1.20277 0.322280i 0 −0.389270 + 0.224745i −1.15723 + 1.91332i 0 −0.0822623 0.307007i −2.15674 + 2.15674i 0 −0.775255 + 2.67423i
188.4 2.45305 0.657293i 0 3.85337 2.22474i −0.750156 2.10648i 0 0.814313 + 3.03906i 4.39869 4.39869i 0 −3.22474 4.67423i
377.1 −2.45305 0.657293i 0 3.85337 + 2.22474i 0.750156 2.10648i 0 0.814313 3.03906i −4.39869 4.39869i 0 −3.22474 + 4.67423i
377.2 −1.20277 0.322280i 0 −0.389270 0.224745i 1.15723 + 1.91332i 0 −0.0822623 + 0.307007i 2.15674 + 2.15674i 0 −0.775255 2.67423i
377.3 1.20277 + 0.322280i 0 −0.389270 0.224745i −1.15723 1.91332i 0 −0.0822623 + 0.307007i −2.15674 2.15674i 0 −0.775255 2.67423i
377.4 2.45305 + 0.657293i 0 3.85337 + 2.22474i −0.750156 + 2.10648i 0 0.814313 3.03906i 4.39869 + 4.39869i 0 −3.22474 + 4.67423i
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 53.4
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
5.c odd 4 1 inner
9.c even 3 1 inner
9.d odd 6 1 inner
15.e even 4 1 inner
45.k odd 12 1 inner
45.l even 12 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 405.2.m.b 16
3.b odd 2 1 inner 405.2.m.b 16
5.c odd 4 1 inner 405.2.m.b 16
9.c even 3 1 135.2.f.b 8
9.c even 3 1 inner 405.2.m.b 16
9.d odd 6 1 135.2.f.b 8
9.d odd 6 1 inner 405.2.m.b 16
15.e even 4 1 inner 405.2.m.b 16
36.f odd 6 1 2160.2.w.a 8
36.h even 6 1 2160.2.w.a 8
45.h odd 6 1 675.2.f.g 8
45.j even 6 1 675.2.f.g 8
45.k odd 12 1 135.2.f.b 8
45.k odd 12 1 inner 405.2.m.b 16
45.k odd 12 1 675.2.f.g 8
45.l even 12 1 135.2.f.b 8
45.l even 12 1 inner 405.2.m.b 16
45.l even 12 1 675.2.f.g 8
180.v odd 12 1 2160.2.w.a 8
180.x even 12 1 2160.2.w.a 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
135.2.f.b 8 9.c even 3 1
135.2.f.b 8 9.d odd 6 1
135.2.f.b 8 45.k odd 12 1
135.2.f.b 8 45.l even 12 1
405.2.m.b 16 1.a even 1 1 trivial
405.2.m.b 16 3.b odd 2 1 inner
405.2.m.b 16 5.c odd 4 1 inner
405.2.m.b 16 9.c even 3 1 inner
405.2.m.b 16 9.d odd 6 1 inner
405.2.m.b 16 15.e even 4 1 inner
405.2.m.b 16 45.k odd 12 1 inner
405.2.m.b 16 45.l even 12 1 inner
675.2.f.g 8 45.h odd 6 1
675.2.f.g 8 45.j even 6 1
675.2.f.g 8 45.k odd 12 1
675.2.f.g 8 45.l even 12 1
2160.2.w.a 8 36.f odd 6 1
2160.2.w.a 8 36.h even 6 1
2160.2.w.a 8 180.v odd 12 1
2160.2.w.a 8 180.x even 12 1

Hecke kernels

This newform subspace can be constructed as the kernel of the linear operator \( T_{2}^{16} - 44T_{2}^{12} + 1836T_{2}^{8} - 4400T_{2}^{4} + 10000 \) acting on \(S_{2}^{\mathrm{new}}(405, [\chi])\). Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{16} - 44 T^{12} + \cdots + 10000 \) Copy content Toggle raw display
$3$ \( T^{16} \) Copy content Toggle raw display
$5$ \( T^{16} + 4 T^{14} + \cdots + 390625 \) Copy content Toggle raw display
$7$ \( (T^{8} + 4 T^{7} + 8 T^{6} + \cdots + 1)^{2} \) Copy content Toggle raw display
$11$ \( (T^{8} - 16 T^{6} + \cdots + 100)^{2} \) Copy content Toggle raw display
$13$ \( (T^{8} - 8 T^{7} + \cdots + 625)^{2} \) Copy content Toggle raw display
$17$ \( (T^{8} + 944 T^{4} + 1600)^{2} \) Copy content Toggle raw display
$19$ \( (T^{2} + 9)^{8} \) Copy content Toggle raw display
$23$ \( T^{16} - 44 T^{12} + \cdots + 10000 \) Copy content Toggle raw display
$29$ \( (T^{8} + 96 T^{6} + \cdots + 5062500)^{2} \) Copy content Toggle raw display
$31$ \( (T^{4} + 4 T^{3} + \cdots + 2500)^{4} \) Copy content Toggle raw display
$37$ \( (T^{4} + 8 T^{3} + \cdots + 361)^{4} \) Copy content Toggle raw display
$41$ \( (T^{8} - 136 T^{6} + \cdots + 62500)^{2} \) Copy content Toggle raw display
$43$ \( (T^{8} + 4 T^{7} + \cdots + 10000)^{2} \) Copy content Toggle raw display
$47$ \( T^{16} + \cdots + 42949672960000 \) Copy content Toggle raw display
$53$ \( (T^{8} + 12524 T^{4} + 27984100)^{2} \) Copy content Toggle raw display
$59$ \( (T^{8} + 240 T^{6} + \cdots + 81000000)^{2} \) Copy content Toggle raw display
$61$ \( (T^{2} - T + 1)^{8} \) Copy content Toggle raw display
$67$ \( (T^{8} - 20 T^{7} + \cdots + 4879681)^{2} \) Copy content Toggle raw display
$71$ \( (T^{4} + 184 T^{2} + 8410)^{4} \) Copy content Toggle raw display
$73$ \( (T^{4} - 4 T^{3} + \cdots + 625)^{4} \) Copy content Toggle raw display
$79$ \( (T^{8} - 30 T^{6} + \cdots + 81)^{2} \) Copy content Toggle raw display
$83$ \( T^{16} + \cdots + 3906250000 \) Copy content Toggle raw display
$89$ \( (T^{4} - 144 T^{2} + 3240)^{4} \) Copy content Toggle raw display
$97$ \( (T^{8} + 16 T^{7} + \cdots + 3418801)^{2} \) Copy content Toggle raw display
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