Properties

Label 91.5.b.c
Level $91$
Weight $5$
Character orbit 91.b
Analytic conductor $9.407$
Analytic rank $0$
Dimension $32$
Inner twists $4$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [91,5,Mod(90,91)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(91, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 1]))
 
N = Newforms(chi, 5, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("91.90");
 
S:= CuspForms(chi, 5);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 91 = 7 \cdot 13 \)
Weight: \( k \) \(=\) \( 5 \)
Character orbit: \([\chi]\) \(=\) 91.b (of order \(2\), degree \(1\), 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: \(9.40666664063\)
Analytic rank: \(0\)
Dimension: \(32\)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-expansion

The algebraic \(q\)-expansion of this newform has not been computed, but we have computed the trace expansion.

\(\operatorname{Tr}(f)(q) = \) \( 32 q - 260 q^{4} - 936 q^{9}+O(q^{10}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q) = \) \( 32 q - 260 q^{4} - 936 q^{9} + 150 q^{14} - 532 q^{16} + 1284 q^{22} - 1548 q^{23} + 380 q^{25} + 216 q^{29} - 260 q^{30} + 498 q^{35} + 1228 q^{36} + 144 q^{39} + 2418 q^{42} - 2100 q^{43} + 2206 q^{49} - 6700 q^{51} - 552 q^{53} - 534 q^{56} + 12172 q^{64} + 22320 q^{65} - 6624 q^{74} - 5808 q^{77} - 12592 q^{78} + 44348 q^{79} + 13920 q^{81} + 8820 q^{88} - 22990 q^{91} - 67812 q^{92} - 3960 q^{95}+O(q^{100}) \) Copy content Toggle raw display

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   \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
90.1 7.29035i 8.59396i −37.1492 3.32237 −62.6530 −31.2319 + 37.7567i 154.185i 7.14378 24.2213i
90.2 7.29035i 8.59396i −37.1492 −3.32237 62.6530 31.2319 + 37.7567i 154.185i 7.14378 24.2213i
90.3 6.62243i 3.62781i −27.8566 −35.6458 −24.0249 −11.4340 47.6473i 78.5198i 67.8390 236.062i
90.4 6.62243i 3.62781i −27.8566 35.6458 24.0249 11.4340 47.6473i 78.5198i 67.8390 236.062i
90.5 5.90557i 15.8634i −18.8758 −16.2792 −93.6825 48.9421 2.38147i 16.9833i −170.647 96.1381i
90.6 5.90557i 15.8634i −18.8758 16.2792 93.6825 −48.9421 2.38147i 16.9833i −170.647 96.1381i
90.7 4.98341i 14.1593i −8.83439 37.2024 −70.5614 −46.1652 16.4247i 35.7092i −119.484 185.395i
90.8 4.98341i 14.1593i −8.83439 −37.2024 70.5614 46.1652 16.4247i 35.7092i −119.484 185.395i
90.9 4.01321i 2.72957i −0.105892 30.9572 −10.9544 20.4779 + 44.5158i 63.7865i 73.5494 124.238i
90.10 4.01321i 2.72957i −0.105892 −30.9572 10.9544 −20.4779 + 44.5158i 63.7865i 73.5494 124.238i
90.11 3.89234i 5.83401i 0.849652 8.73225 −22.7080 48.8772 + 3.46667i 65.5847i 46.9643 33.9889i
90.12 3.89234i 5.83401i 0.849652 −8.73225 22.7080 −48.8772 + 3.46667i 65.5847i 46.9643 33.9889i
90.13 1.65881i 14.8245i 13.2484 −32.1514 −24.5910 −36.6363 + 32.5389i 48.5173i −138.767 53.3330i
90.14 1.65881i 14.8245i 13.2484 32.1514 24.5910 36.6363 + 32.5389i 48.5173i −138.767 53.3330i
90.15 1.50866i 9.03315i 13.7240 −9.79747 −13.6279 −9.82211 48.0055i 44.8433i −0.597837 14.7810i
90.16 1.50866i 9.03315i 13.7240 9.79747 13.6279 9.82211 48.0055i 44.8433i −0.597837 14.7810i
90.17 1.50866i 9.03315i 13.7240 9.79747 13.6279 9.82211 + 48.0055i 44.8433i −0.597837 14.7810i
90.18 1.50866i 9.03315i 13.7240 −9.79747 −13.6279 −9.82211 + 48.0055i 44.8433i −0.597837 14.7810i
90.19 1.65881i 14.8245i 13.2484 32.1514 24.5910 36.6363 32.5389i 48.5173i −138.767 53.3330i
90.20 1.65881i 14.8245i 13.2484 −32.1514 −24.5910 −36.6363 32.5389i 48.5173i −138.767 53.3330i
See all 32 embeddings
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 90.32
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
7.b odd 2 1 inner
13.b even 2 1 inner
91.b odd 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 91.5.b.c 32
7.b odd 2 1 inner 91.5.b.c 32
13.b even 2 1 inner 91.5.b.c 32
91.b odd 2 1 inner 91.5.b.c 32
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
91.5.b.c 32 1.a even 1 1 trivial
91.5.b.c 32 7.b odd 2 1 inner
91.5.b.c 32 13.b even 2 1 inner
91.5.b.c 32 91.b odd 2 1 inner

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{5}^{\mathrm{new}}(91, [\chi])\):

\( T_{2}^{16} + 193 T_{2}^{14} + 15083 T_{2}^{12} + 614639 T_{2}^{10} + 14004332 T_{2}^{8} + \cdots + 3085248448 \) Copy content Toggle raw display
\( T_{5}^{16} - 5095 T_{5}^{14} + 10178324 T_{5}^{12} - 10007225154 T_{5}^{10} + 4967789425189 T_{5}^{8} + \cdots + 37\!\cdots\!24 \) Copy content Toggle raw display