Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [40,5,Mod(17,40)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("40.17"); S:= CuspForms(chi, 5); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(40, base_ring=CyclotomicField(4)) chi = DirichletCharacter(H, H._module([0, 0, 1])) N = Newforms(chi, 5, names="a")
 
Level: \( N \) \(=\) \( 40 = 2^{3} \cdot 5 \)
Weight: \( k \) \(=\) \( 5 \)
Character orbit: \([\chi]\) \(=\) 40.l (of order \(4\), degree \(2\), minimal)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [6] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(1)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(4.13479852335\)
Analytic rank: \(0\)
Dimension: \(6\)
Relative dimension: \(3\) over \(\Q(i)\)
Coefficient field: 6.0.313431616.3
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{6} + 27x^{4} + 145x^{2} + 144 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{19}]\)
Coefficient ring index: \( 2^{5}\cdot 5^{2} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{4}]$

Embedding invariants

Embedding label 33.1
Root \(2.35597i\) of defining polynomial
Character \(\chi\) \(=\) 40.33
Dual form 40.5.l.c.17.1

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content gp:mfcoefs(f, 20)
 
\(f(q)\) \(=\) \(q+(-11.3304 - 11.3304i) q^{3} +(9.33042 + 23.1936i) q^{5} +(-42.8544 + 42.8544i) q^{7} +175.757i q^{9} -20.3872 q^{11} +(-151.697 - 151.697i) q^{13} +(157.076 - 368.511i) q^{15} +(-150.269 + 150.269i) q^{17} +277.202i q^{19} +971.118 q^{21} +(-363.891 - 363.891i) q^{23} +(-450.886 + 432.812i) q^{25} +(1073.64 - 1073.64i) q^{27} -413.744i q^{29} -659.526 q^{31} +(230.996 + 230.996i) q^{33} +(-1393.80 - 594.099i) q^{35} +(1058.50 - 1058.50i) q^{37} +3437.59i q^{39} -801.206 q^{41} +(2008.78 + 2008.78i) q^{43} +(-4076.44 + 1639.89i) q^{45} +(-1471.26 + 1471.26i) q^{47} -1272.01i q^{49} +3405.23 q^{51} +(-1321.08 - 1321.08i) q^{53} +(-190.221 - 472.853i) q^{55} +(3140.82 - 3140.82i) q^{57} +937.237i q^{59} +2543.20 q^{61} +(-7531.97 - 7531.97i) q^{63} +(2103.01 - 4933.80i) q^{65} +(140.942 - 140.942i) q^{67} +8246.08i q^{69} +2532.44 q^{71} +(5900.02 + 5900.02i) q^{73} +(10012.7 + 204.788i) q^{75} +(873.682 - 873.682i) q^{77} +196.937i q^{79} -10093.2 q^{81} +(-9130.34 - 9130.34i) q^{83} +(-4887.36 - 2083.21i) q^{85} +(-4687.89 + 4687.89i) q^{87} -10678.4i q^{89} +13001.8 q^{91} +(7472.70 + 7472.70i) q^{93} +(-6429.32 + 2586.41i) q^{95} +(-11052.2 + 11052.2i) q^{97} -3583.19i q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 6 q - 8 q^{3} - 4 q^{5} - 40 q^{7} + 72 q^{11} - 62 q^{13} - 280 q^{15} + 418 q^{17} + 1736 q^{21} - 1760 q^{23} - 2974 q^{25} + 2248 q^{27} + 2864 q^{31} - 8 q^{33} - 4224 q^{35} + 5366 q^{37} + 1656 q^{41}+ \cdots - 9418 q^{97}+O(q^{100}) \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/40\mathbb{Z}\right)^\times\).

\(n\) \(17\) \(21\) \(31\)
\(\chi(n)\) \(e\left(\frac{3}{4}\right)\) \(1\) \(1\)

Coefficient data

For each \(n\) we display the coefficients of the \(q\)-expansion \(a_n\), the Satake parameters \(\alpha_p\), and the Satake angles \(\theta_p = \textrm{Arg}(\alpha_p)\). You can download additional coefficients here.



Currently showing only \(a_p\); display all \(a_n\) Currently showing all \(a_n\); display only \(a_p\)
Significant digits:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) 0 0
\(3\) −11.3304 − 11.3304i −1.25894 − 1.25894i −0.951602 − 0.307334i \(-0.900563\pi\)
−0.307334 − 0.951602i \(-0.599437\pi\)
\(4\) 0 0
\(5\) 9.33042 + 23.1936i 0.373217 + 0.927744i
\(6\) 0 0
\(7\) −42.8544 + 42.8544i −0.874581 + 0.874581i −0.992968 − 0.118387i \(-0.962228\pi\)
0.118387 + 0.992968i \(0.462228\pi\)
\(8\) 0 0
\(9\) 175.757i 2.16984i
\(10\) 0 0
\(11\) −20.3872 −0.168489 −0.0842447 − 0.996445i \(-0.526848\pi\)
−0.0842447 + 0.996445i \(0.526848\pi\)
\(12\) 0 0
\(13\) −151.697 − 151.697i −0.897617 − 0.897617i 0.0976082 − 0.995225i \(-0.468881\pi\)
−0.995225 + 0.0976082i \(0.968881\pi\)
\(14\) 0 0
\(15\) 157.076 − 368.511i 0.698114 − 1.63783i
\(16\) 0 0
\(17\) −150.269 + 150.269i −0.519963 + 0.519963i −0.917560 − 0.397597i \(-0.869844\pi\)
0.397597 + 0.917560i \(0.369844\pi\)
\(18\) 0 0
\(19\) 277.202i 0.767873i 0.923359 + 0.383937i \(0.125432\pi\)
−0.923359 + 0.383937i \(0.874568\pi\)
\(20\) 0 0
\(21\) 971.118 2.20208
\(22\) 0 0
\(23\) −363.891 − 363.891i −0.687885 − 0.687885i 0.273879 − 0.961764i \(-0.411693\pi\)
−0.961764 + 0.273879i \(0.911693\pi\)
\(24\) 0 0
\(25\) −450.886 + 432.812i −0.721418 + 0.692500i
\(26\) 0 0
\(27\) 1073.64 − 1073.64i 1.47275 − 1.47275i
\(28\) 0 0
\(29\) − 413.744i − 0.491967i −0.969274 − 0.245983i \(-0.920889\pi\)
0.969274 − 0.245983i \(-0.0791108\pi\)
\(30\) 0 0
\(31\) −659.526 −0.686291 −0.343145 − 0.939282i \(-0.611492\pi\)
−0.343145 + 0.939282i \(0.611492\pi\)
\(32\) 0 0
\(33\) 230.996 + 230.996i 0.212117 + 0.212117i
\(34\) 0 0
\(35\) −1393.80 − 594.099i −1.13780 − 0.484979i
\(36\) 0 0
\(37\) 1058.50 − 1058.50i 0.773193 − 0.773193i −0.205471 − 0.978663i \(-0.565873\pi\)
0.978663 + 0.205471i \(0.0658725\pi\)
\(38\) 0 0
\(39\) 3437.59i 2.26008i
\(40\) 0 0
\(41\) −801.206 −0.476624 −0.238312 − 0.971189i \(-0.576594\pi\)
−0.238312 + 0.971189i \(0.576594\pi\)
\(42\) 0 0
\(43\) 2008.78 + 2008.78i 1.08642 + 1.08642i 0.995894 + 0.0905217i \(0.0288535\pi\)
0.0905217 + 0.995894i \(0.471147\pi\)
\(44\) 0 0
\(45\) −4076.44 + 1639.89i −2.01306 + 0.809821i
\(46\) 0 0
\(47\) −1471.26 + 1471.26i −0.666030 + 0.666030i −0.956795 − 0.290765i \(-0.906090\pi\)
0.290765 + 0.956795i \(0.406090\pi\)
\(48\) 0 0
\(49\) − 1272.01i − 0.529782i
\(50\) 0 0
\(51\) 3405.23 1.30920
\(52\) 0 0
\(53\) −1321.08 − 1321.08i −0.470304 − 0.470304i 0.431709 − 0.902013i \(-0.357911\pi\)
−0.902013 + 0.431709i \(0.857911\pi\)
\(54\) 0 0
\(55\) −190.221 − 472.853i −0.0628831 − 0.156315i
\(56\) 0 0
\(57\) 3140.82 − 3140.82i 0.966703 − 0.966703i
\(58\) 0 0
\(59\) 937.237i 0.269243i 0.990897 + 0.134622i \(0.0429819\pi\)
−0.990897 + 0.134622i \(0.957018\pi\)
\(60\) 0 0
\(61\) 2543.20 0.683473 0.341736 − 0.939796i \(-0.388985\pi\)
0.341736 + 0.939796i \(0.388985\pi\)
\(62\) 0 0
\(63\) −7531.97 − 7531.97i −1.89770 − 1.89770i
\(64\) 0 0
\(65\) 2103.01 − 4933.80i 0.497753 − 1.16776i
\(66\) 0 0
\(67\) 140.942 − 140.942i 0.0313971 − 0.0313971i −0.691234 − 0.722631i \(-0.742933\pi\)
0.722631 + 0.691234i \(0.242933\pi\)
\(68\) 0 0
\(69\) 8246.08i 1.73200i
\(70\) 0 0
\(71\) 2532.44 0.502368 0.251184 − 0.967939i \(-0.419180\pi\)
0.251184 + 0.967939i \(0.419180\pi\)
\(72\) 0 0
\(73\) 5900.02 + 5900.02i 1.10715 + 1.10715i 0.993523 + 0.113630i \(0.0362479\pi\)
0.113630 + 0.993523i \(0.463752\pi\)
\(74\) 0 0
\(75\) 10012.7 + 204.788i 1.78003 + 0.0364068i
\(76\) 0 0
\(77\) 873.682 − 873.682i 0.147357 − 0.147357i
\(78\) 0 0
\(79\) 196.937i 0.0315554i 0.999876 + 0.0157777i \(0.00502240\pi\)
−0.999876 + 0.0157777i \(0.994978\pi\)
\(80\) 0 0
\(81\) −10093.2 −1.53836
\(82\) 0 0
\(83\) −9130.34 − 9130.34i −1.32535 − 1.32535i −0.909377 − 0.415973i \(-0.863441\pi\)
−0.415973 − 0.909377i \(-0.636559\pi\)
\(84\) 0 0
\(85\) −4887.36 − 2083.21i −0.676452 − 0.288334i
\(86\) 0 0
\(87\) −4687.89 + 4687.89i −0.619354 + 0.619354i
\(88\) 0 0
\(89\) − 10678.4i − 1.34811i −0.738680 − 0.674056i \(-0.764551\pi\)
0.738680 − 0.674056i \(-0.235449\pi\)
\(90\) 0 0
\(91\) 13001.8 1.57008
\(92\) 0 0
\(93\) 7472.70 + 7472.70i 0.863996 + 0.863996i
\(94\) 0 0
\(95\) −6429.32 + 2586.41i −0.712390 + 0.286583i
\(96\) 0 0
\(97\) −11052.2 + 11052.2i −1.17464 + 1.17464i −0.193550 + 0.981090i \(0.562000\pi\)
−0.981090 + 0.193550i \(0.938000\pi\)
\(98\) 0 0
\(99\) − 3583.19i − 0.365595i
Currently showing only \(a_p\); display all \(a_n\) Currently showing all \(a_n\); display only \(a_p\)

Twists

       By twisting character
Char Parity Ord Type Twist Min Dim
1.1 even 1 trivial 40.5.l.c.33.1 yes 6
3.2 odd 2 360.5.v.c.73.1 6
4.3 odd 2 80.5.p.g.33.3 6
5.2 odd 4 inner 40.5.l.c.17.1 ✓ 6
5.3 odd 4 200.5.l.e.57.3 6
5.4 even 2 200.5.l.e.193.3 6
8.3 odd 2 320.5.p.o.193.1 6
8.5 even 2 320.5.p.p.193.3 6
15.2 even 4 360.5.v.c.217.1 6
20.3 even 4 400.5.p.o.257.1 6
20.7 even 4 80.5.p.g.17.3 6
20.19 odd 2 400.5.p.o.193.1 6
40.27 even 4 320.5.p.o.257.1 6
40.37 odd 4 320.5.p.p.257.3 6
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
40.5.l.c.17.1 ✓ 6 5.2 odd 4 inner
40.5.l.c.33.1 yes 6 1.1 even 1 trivial
80.5.p.g.17.3 6 20.7 even 4
80.5.p.g.33.3 6 4.3 odd 2
200.5.l.e.57.3 6 5.3 odd 4
200.5.l.e.193.3 6 5.4 even 2
320.5.p.o.193.1 6 8.3 odd 2
320.5.p.o.257.1 6 40.27 even 4
320.5.p.p.193.3 6 8.5 even 2
320.5.p.p.257.3 6 40.37 odd 4
360.5.v.c.73.1 6 3.2 odd 2
360.5.v.c.217.1 6 15.2 even 4
400.5.p.o.193.1 6 20.19 odd 2
400.5.p.o.257.1 6 20.3 even 4