gp: [N,k,chi] = [760,2,Mod(267,760)]
mf = mfinit([N,k,chi],0)
lf = mfeigenbasis(mf)
magma: // Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
chi := DirichletCharacter("760.267");
S:= CuspForms(chi, 2);
N := Newforms(S);
sage: from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(760, base_ring=CyclotomicField(4))
chi = DirichletCharacter(H, H._module([2, 2, 1, 0]))
N = Newforms(chi, 2, names="a")
Newform invariants
sage: traces = [108,0]
f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(2)] == traces)
gp: f = lf[1] \\ Warning: the index may be different
The algebraic \(q\)-expansion of this newform has not been computed, but we have computed the trace expansion .
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.
gp: mfembed(f)
Refresh table
This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{2}^{\mathrm{new}}(760, [\chi])\):
\( T_{3}^{54} + 376 T_{3}^{50} - 20 T_{3}^{49} + 320 T_{3}^{47} + 56862 T_{3}^{46} - 3220 T_{3}^{45} + \cdots + 131072 \)
T3^54 + 376*T3^50 - 20*T3^49 + 320*T3^47 + 56862*T3^46 - 3220*T3^45 + 200*T3^44 + 66548*T3^43 + 4526476*T3^42 - 165028*T3^41 + 40400*T3^40 + 5500852*T3^39 + 207404137*T3^38 - 2074164*T3^37 + 3217320*T3^36 + 240286092*T3^35 + 5629748340*T3^34 + 84243240*T3^33 + 135231912*T3^32 + 6241617372*T3^31 + 90576867904*T3^30 + 4353172136*T3^29 + 3432405456*T3^28 + 97131520752*T3^27 + 841667909712*T3^26 + 92598718080*T3^25 + 53191234760*T3^24 + 847151743040*T3^23 + 4237287272224*T3^22 + 993180231184*T3^21 + 466833381504*T3^20 + 3548687280192*T3^19 + 10284725260432*T3^18 + 4729488670368*T3^17 + 1963106387200*T3^16 + 4959212207040*T3^15 + 10697030457536*T3^14 + 6701889666560*T3^13 + 2669365108864*T3^12 + 2234930197376*T3^11 + 3748291628608*T3^10 + 2734270252032*T3^9 + 1075511896064*T3^8 + 144215475200*T3^7 - 6631335936*T3^6 - 2754265088*T3^5 + 2585755648*T3^4 - 136298496*T3^3 + 2985984*T3^2 + 884736*T3 + 131072
\( T_{7}^{108} + 2860 T_{7}^{104} + 3729602 T_{7}^{100} + 2938272260 T_{7}^{96} + 1562341888351 T_{7}^{92} + \cdots + 10\!\cdots\!24 \)
T7^108 + 2860*T7^104 + 3729602*T7^100 + 2938272260*T7^96 + 1562341888351*T7^92 + 593452484156672*T7^88 + 166316790323423788*T7^84 + 35039788385730153320*T7^80 + 5606720383277188493391*T7^76 + 684361558302140367918348*T7^72 + 63727600289060825592624610*T7^68 + 4512686831462224441694721428*T7^64 + 241609058556443635380875551025*T7^60 + 9707518671441882338674696251080*T7^56 + 290261632794082982576488372019792*T7^52 + 6404874974259113202653259343973120*T7^48 + 103454747382473740731260308911272448*T7^44 + 1213160191282288737914625375750409728*T7^40 + 10231024870749838650222209827349481472*T7^36 + 61316748281994544428187016421260419072*T7^32 + 257026510786284530500010831742205526016*T7^28 + 737205313814171155891777846580495777792*T7^24 + 1402904750838748071457122789267050921984*T7^20 + 1697670107125669880820898559189736226816*T7^16 + 1239269098547312202086459512137577398272*T7^12 + 518356208852845576409809324684720734208*T7^8 + 113460598465237392148331164895077728256*T7^4 + 10032539938731502374472005349669863424