/* This code can be loaded, or copied and pasted, into Magma. It will load the data associated to the HMF, including the field, level, and Hecke and Atkin-Lehner eigenvalue data. At the *bottom* of the file, there is code to recreate the Hilbert modular form in Magma, by creating the HMF space and cutting out the corresponding Hecke irreducible subspace. From there, you can ask for more eigenvalues or modify as desired. It is commented out, as this computation may be lengthy. */ P := PolynomialRing(Rationals()); g := P![-1, 4, 5, -4, -2, 1]; F := NumberField(g); ZF := Integers(F); NN := ideal; primesArray := [ [3, 3, w - 1], [5, 5, w^2 - w - 2], [7, 7, w^4 - 2*w^3 - 3*w^2 + 4*w + 2], [13, 13, w^3 - 2*w^2 - 2*w + 2], [29, 29, -w^4 + 3*w^3 + 2*w^2 - 7*w - 1], [29, 29, -w^2 + 2*w + 3], [31, 31, w^4 - 2*w^3 - 3*w^2 + 5*w], [31, 31, w^3 - 2*w^2 - 3*w + 2], [32, 2, 2], [43, 43, -w^2 - w + 4], [53, 53, -w^4 + w^3 + 6*w^2 - 2*w - 5], [53, 53, -w^4 + 2*w^3 + 4*w^2 - 5*w - 2], [73, 73, w^4 - w^3 - 6*w^2 + 2*w + 6], [73, 73, w^3 - w^2 - 4*w + 2], [81, 3, 2*w^4 - 5*w^3 - 4*w^2 + 9*w + 2], [83, 83, w^3 - w^2 - 5*w], [89, 89, -w^4 + 2*w^3 + 4*w^2 - 4*w - 2], [97, 97, w^4 - 3*w^3 - 2*w^2 + 6*w + 2], [101, 101, -w^4 + 3*w^3 + 3*w^2 - 7*w - 3], [103, 103, -w^4 + w^3 + 6*w^2 - w - 7], [103, 103, 2*w^4 - 4*w^3 - 6*w^2 + 8*w + 1], [103, 103, w^4 - w^3 - 6*w^2 + 3*w + 4], [107, 107, -w^4 + 2*w^3 + 3*w^2 - 5*w + 2], [109, 109, w^3 - 4*w - 1], [109, 109, -w^2 + 2*w + 4], [131, 131, w^4 - w^3 - 6*w^2 + w + 6], [137, 137, w^3 - w^2 - 5*w + 3], [149, 149, w^4 - 3*w^3 - 3*w^2 + 9*w + 6], [149, 149, -w^4 + 6*w^2 + 3*w], [163, 163, 2*w^2 - w - 5], [167, 167, -2*w^4 + 3*w^3 + 8*w^2 - 4*w - 3], [169, 13, w^4 - 3*w^3 + 6*w - 3], [169, 13, w^3 - 4*w - 4], [173, 173, w^4 - w^3 - 4*w^2 + 2*w + 1], [173, 173, -w^4 + 3*w^3 + 3*w^2 - 7*w - 5], [173, 173, w^4 - w^3 - 4*w^2 + w - 1], [179, 179, w^2 - 3*w - 2], [191, 191, -w^4 + 3*w^3 + w^2 - 6*w - 1], [193, 193, -w^3 + 2*w^2 + w - 4], [193, 193, -w^4 + 3*w^3 + 3*w^2 - 8*w - 1], [199, 199, w^4 - 3*w^3 - w^2 + 7*w], [199, 199, -2*w^4 + 5*w^3 + 5*w^2 - 10*w - 2], [199, 199, w^4 - 3*w^3 + 5*w - 4], [211, 211, 2*w^3 - 2*w^2 - 7*w - 1], [211, 211, -2*w^3 + 3*w^2 + 5*w - 2], [223, 223, -2*w^4 + 3*w^3 + 10*w^2 - 7*w - 9], [227, 227, w^3 - w^2 - 4*w + 3], [229, 229, w^4 - 4*w^3 + 10*w - 5], [229, 229, -2*w^4 + 4*w^3 + 7*w^2 - 9*w - 8], [239, 239, -2*w^4 + 3*w^3 + 7*w^2 - 3*w - 3], [241, 241, w^3 - w^2 - 2*w - 2], [257, 257, -w^4 + w^3 + 6*w^2 - 4*w - 4], [263, 263, 2*w^3 - 4*w^2 - 5*w + 6], [269, 269, w^3 - 2*w^2 - 4*w + 4], [269, 269, -2*w^4 + 2*w^3 + 11*w^2 - 3*w - 10], [271, 271, w^3 - 5*w], [281, 281, w^4 - w^3 - 5*w^2 + 3*w + 3], [281, 281, -2*w^4 + 4*w^3 + 6*w^2 - 6*w - 3], [281, 281, w^3 - 5*w - 1], [283, 283, -2*w^4 + 4*w^3 + 7*w^2 - 8*w - 3], [289, 17, -2*w^4 + 3*w^3 + 8*w^2 - 5*w - 2], [293, 293, 2*w^4 - 5*w^3 - 7*w^2 + 14*w + 9], [311, 311, -w^4 + 2*w^3 + 2*w^2 - 4*w + 3], [313, 313, w^3 - 6*w], [331, 331, w^4 - 2*w^3 - 2*w^2 + w - 2], [359, 359, w^4 - w^3 - 5*w^2 + 2*w - 1], [373, 373, -w^4 + 3*w^3 + 2*w^2 - 8*w - 3], [373, 373, 2*w^3 - 4*w^2 - 3*w + 3], [379, 379, -w^4 + 4*w^3 - w^2 - 9*w + 3], [379, 379, -w^4 + 3*w^3 + w^2 - 6*w - 2], [379, 379, w^4 + w^3 - 7*w^2 - 6*w + 3], [383, 383, -w^4 + 2*w^3 + 3*w^2 - 6*w - 2], [383, 383, w^4 - 5*w^2 - 3*w + 3], [383, 383, 2*w^4 - 5*w^3 - 3*w^2 + 8*w], [389, 389, 3*w^4 - 7*w^3 - 8*w^2 + 16*w + 1], [397, 397, -2*w^4 + 3*w^3 + 8*w^2 - 3*w - 7], [397, 397, -w^4 + 2*w^3 + 3*w^2 - 4*w - 5], [397, 397, -2*w^4 + 3*w^3 + 7*w^2 - 4*w - 3], [409, 409, -w^4 + w^3 + 7*w^2 - 5*w - 9], [419, 419, w^4 - 2*w^3 - w^2 + 2*w - 2], [419, 419, 2*w^4 - 3*w^3 - 7*w^2 + 5*w + 2], [419, 419, -w^4 + 4*w^3 - 9*w - 2], [433, 433, -w^4 + 3*w^3 - 8*w + 4], [433, 433, w^4 - 7*w^2 - w + 6], [439, 439, 3*w^4 - 6*w^3 - 10*w^2 + 11*w + 7], [449, 449, -2*w^4 + 5*w^3 + 5*w^2 - 11*w - 4], [457, 457, -2*w^4 + 5*w^3 + 4*w^2 - 10*w - 2], [463, 463, 2*w^4 - 5*w^3 - 4*w^2 + 8*w + 1], [467, 467, 2*w^4 - 4*w^3 - 6*w^2 + 6*w + 1], [479, 479, 3*w^4 - 4*w^3 - 12*w^2 + 4*w + 7], [479, 479, 2*w^4 - 6*w^3 - 4*w^2 + 14*w + 1], [491, 491, w^4 - 6*w^2 - w + 4], [503, 503, 2*w^4 - w^3 - 11*w^2 - 3*w + 8], [503, 503, 2*w^3 - 5*w^2 - 2*w + 6], [509, 509, w^4 - 5*w^2 - 6*w], [509, 509, w^4 - 3*w^3 - 3*w^2 + 9*w + 1], [523, 523, 3*w^4 - 7*w^3 - 7*w^2 + 12*w + 3], [523, 523, 3*w^4 - 8*w^3 - 7*w^2 + 17*w + 3], [523, 523, w^4 - 7*w^2 - 2*w + 4], [529, 23, -w^4 + w^3 + 7*w^2 - 2*w - 9], [541, 541, w^4 - 3*w^3 - 3*w^2 + 5*w + 2], [547, 547, -w^3 + 3*w^2 + 3*w - 4], [557, 557, 2*w^3 - 4*w^2 - 6*w + 9], [577, 577, 2*w^4 - 2*w^3 - 11*w^2 + 5*w + 10], [577, 577, w^4 - 4*w^3 - w^2 + 9*w], [577, 577, 2*w^4 - 3*w^3 - 9*w^2 + 4*w + 8], [577, 577, w^4 - 7*w^2 - 3*w + 7], [577, 577, -3*w^4 + 3*w^3 + 13*w^2 - w - 4], [593, 593, 3*w - 2], [601, 601, 2*w^4 - 4*w^3 - 7*w^2 + 5*w + 6], [601, 601, -w^4 + 3*w^3 + w^2 - 7*w - 1], [607, 607, w^3 - w^2 - 2*w - 3], [625, 5, 2*w^4 - 5*w^3 - 8*w^2 + 14*w + 11], [631, 631, -w^2 + w - 2], [631, 631, w^4 - 7*w^2 - w + 8], [643, 643, -2*w^4 + 4*w^3 + 9*w^2 - 10*w - 8], [647, 647, 3*w^4 - 6*w^3 - 10*w^2 + 12*w + 8], [653, 653, -3*w^4 + 6*w^3 + 11*w^2 - 12*w - 9], [653, 653, w^4 - w^3 - 2*w^2 - 3*w - 3], [653, 653, -2*w^4 + 4*w^3 + 7*w^2 - 6*w - 8], [701, 701, w^4 - w^3 - 2*w^2 - w - 5], [719, 719, 2*w^4 - 5*w^3 - 6*w^2 + 14*w + 2], [727, 727, 2*w^4 - 5*w^3 - 5*w^2 + 9*w + 3], [733, 733, 2*w^4 - 5*w^3 - 5*w^2 + 13*w + 3], [739, 739, -2*w^3 + 4*w^2 + 4*w - 5], [743, 743, w^4 - 2*w^3 - 3*w^2 + 6*w - 3], [743, 743, 2*w^4 - 2*w^3 - 11*w^2 + 2*w + 10], [757, 757, -w^4 + 2*w^3 + 5*w^2 - 6*w - 10], [757, 757, 2*w^4 - 6*w^3 - 2*w^2 + 11*w - 4], [761, 761, 3*w^3 - 4*w^2 - 9*w + 3], [769, 769, 3*w^3 - 5*w^2 - 9*w + 7], [769, 769, -2*w^4 + 4*w^3 + 7*w^2 - 11*w - 2], [773, 773, 2*w^4 - 5*w^3 - 6*w^2 + 12*w + 1], [773, 773, 3*w^4 - 4*w^3 - 12*w^2 + 3*w + 5], [773, 773, 2*w^3 - w^2 - 10*w - 4], [797, 797, -w^4 + 4*w^3 + 2*w^2 - 12*w - 3], [811, 811, w^4 - 2*w^3 - 6*w^2 + 8*w + 4], [823, 823, w^4 - 4*w^3 - w^2 + 10*w + 1], [823, 823, 2*w^4 - 4*w^3 - 4*w^2 + 4*w - 3], [827, 827, -w^4 + 2*w^3 + 2*w^2 - w + 3], [827, 827, 2*w^4 - 4*w^3 - 5*w^2 + 7*w + 2], [829, 829, -w^4 + 4*w^3 + 2*w^2 - 10*w - 2], [829, 829, 3*w^3 - 3*w^2 - 11*w - 2], [829, 829, w^4 - 2*w^3 - 3*w^2 + 2*w - 3], [839, 839, -w^4 + 5*w^3 - 3*w^2 - 10*w + 5], [839, 839, -w^4 + w^3 + 5*w^2 - 9], [853, 853, 2*w^4 - 6*w^3 - 5*w^2 + 15*w + 4], [859, 859, -3*w^4 + 8*w^3 + 6*w^2 - 18*w + 5], [863, 863, w^4 - w^3 - 6*w^2 + 5*w + 2], [877, 877, 3*w^3 - 4*w^2 - 8*w + 1], [881, 881, 3*w^4 - 7*w^3 - 9*w^2 + 15*w + 3], [881, 881, -w^3 + 7*w + 1], [883, 883, -2*w^4 + 6*w^3 + 3*w^2 - 15*w], [887, 887, w^4 - w^3 - 5*w^2 + w - 1], [907, 907, 3*w^4 - 5*w^3 - 11*w^2 + 9*w + 5], [919, 919, w^4 - 2*w^3 - 6*w^2 + 8*w + 7], [937, 937, 2*w^4 - 2*w^3 - 9*w^2 + 2*w + 3], [937, 937, -3*w^4 + 8*w^3 + 6*w^2 - 16*w + 1], [937, 937, 3*w^4 - 5*w^3 - 11*w^2 + 7*w + 4], [947, 947, w^3 - w^2 - 7*w + 2], [947, 947, -w^4 + 2*w^3 + 4*w^2 - 7*w - 3], [967, 967, -w^4 + 4*w^3 - 11*w], [971, 971, 3*w^4 - 6*w^3 - 8*w^2 + 10*w], [971, 971, w^4 - 8*w^2 + 2*w + 9], [971, 971, w^4 - 4*w^3 + 2*w^2 + 7*w - 4], [977, 977, -w^4 + 4*w^3 - 12*w + 5], [983, 983, -w^4 + w^3 + 4*w^2 + 3*w - 2], [983, 983, -2*w^4 + 3*w^3 + 8*w^2 - 6*w - 4], [997, 997, 2*w^4 - 4*w^3 - 5*w^2 + 5*w - 3], [997, 997, w^4 + w^3 - 5*w^2 - 9*w - 2]]; primes := [ideal : I in primesArray]; heckePol := x^5 + x^4 - 6*x^3 - 3*x^2 + 5*x - 1; K := NumberField(heckePol); heckeEigenvaluesArray := [e, 0, 3*e^4 + 4*e^3 - 16*e^2 - 15*e + 8, -3*e^4 - 5*e^3 + 16*e^2 + 19*e - 8, 3*e^4 + 4*e^3 - 16*e^2 - 12*e + 11, -e^4 - e^3 + 6*e^2 + 4*e - 5, e^4 - 6*e^2 + 3*e + 5, -e^4 - e^3 + 6*e^2 + 5*e - 3, e^2 - e - 2, -4*e^4 - 5*e^3 + 22*e^2 + 19*e - 10, -8*e^4 - 12*e^3 + 43*e^2 + 45*e - 23, 6*e^4 + 8*e^3 - 32*e^2 - 28*e + 15, -8*e^4 - 10*e^3 + 41*e^2 + 35*e - 14, -e^4 - 3*e^3 + 3*e^2 + 12*e + 4, 4*e^4 + 8*e^3 - 22*e^2 - 31*e + 18, -4*e^4 - 3*e^3 + 25*e^2 + 8*e - 13, 4*e^4 + 4*e^3 - 24*e^2 - 16*e + 17, -7*e^4 - 8*e^3 + 43*e^2 + 28*e - 28, 6*e^4 + 9*e^3 - 33*e^2 - 30*e + 15, -5*e^4 - 6*e^3 + 25*e^2 + 21*e - 1, -e^4 + 2*e^3 + 7*e^2 - 6*e + 2, e^3 - 2*e^2 - 11*e + 10, 4*e^4 + 8*e^3 - 16*e^2 - 31*e + 1, -3*e^4 - 5*e^3 + 17*e^2 + 25*e - 8, 6*e^4 + 7*e^3 - 34*e^2 - 23*e + 19, -7*e^4 - 8*e^3 + 37*e^2 + 25*e - 13, e^4 + 4*e^3 - 4*e^2 - 15*e - 5, e^4 - 9*e^2 + 5, 5*e^4 + 7*e^3 - 30*e^2 - 28*e + 16, -5*e^4 - 7*e^3 + 27*e^2 + 19*e - 7, -10*e^4 - 17*e^3 + 50*e^2 + 63*e - 27, 9*e^4 + 9*e^3 - 49*e^2 - 29*e + 32, 6*e^4 + 8*e^3 - 38*e^2 - 31*e + 32, -11*e^4 - 18*e^3 + 58*e^2 + 63*e - 26, -6*e^4 - 11*e^3 + 35*e^2 + 48*e - 19, e^4 + 5*e^3 + 2*e^2 - 19*e - 11, -10*e^4 - 14*e^3 + 55*e^2 + 55*e - 37, 2*e^4 + 5*e^3 - 15*e^2 - 20*e + 25, -6*e^3 - 3*e^2 + 27*e + 10, -5*e^3 - 7*e^2 + 22*e + 17, 13*e^4 + 15*e^3 - 71*e^2 - 52*e + 39, -2*e^4 - 3*e^3 + 10*e^2 + 6*e - 4, -e^4 + 3*e^3 + 6*e^2 - 9*e + 4, 21*e^4 + 26*e^3 - 116*e^2 - 94*e + 56, -7*e^4 - 13*e^3 + 40*e^2 + 54*e - 22, 8*e^4 + 11*e^3 - 45*e^2 - 46*e + 21, -10*e^4 - 12*e^3 + 62*e^2 + 45*e - 43, -12*e^4 - 16*e^3 + 68*e^2 + 56*e - 43, 18*e^4 + 27*e^3 - 96*e^2 - 108*e + 55, 7*e^4 + 8*e^3 - 40*e^2 - 22*e + 28, 7*e^4 + 7*e^3 - 36*e^2 - 20*e + 8, 7*e^4 + 10*e^3 - 39*e^2 - 41*e + 25, 3*e^4 + 2*e^3 - 18*e^2 - 8*e + 9, -6*e^4 - 13*e^3 + 34*e^2 + 56*e - 21, 15*e^4 + 19*e^3 - 81*e^2 - 67*e + 42, 4*e^4 + 5*e^3 - 19*e^2 - 22*e + 9, 13*e^4 + 20*e^3 - 68*e^2 - 75*e + 30, 6*e^4 + 14*e^3 - 29*e^2 - 52*e + 21, 13*e^4 + 17*e^3 - 66*e^2 - 59*e + 32, 5*e^4 + 7*e^3 - 32*e^2 - 35*e + 31, -12*e^4 - 15*e^3 + 63*e^2 + 54*e - 33, -19*e^4 - 26*e^3 + 103*e^2 + 88*e - 55, -15*e^4 - 17*e^3 + 79*e^2 + 58*e - 38, 3*e^4 + 9*e^3 - 19*e^2 - 44*e + 14, e^4 + 2*e^3 - 11*e - 22, -13*e^4 - 15*e^3 + 71*e^2 + 48*e - 22, 24*e^4 + 31*e^3 - 128*e^2 - 107*e + 67, 12*e^4 + 10*e^3 - 70*e^2 - 29*e + 41, 23*e^4 + 32*e^3 - 124*e^2 - 118*e + 69, -23*e^4 - 29*e^3 + 126*e^2 + 97*e - 64, 16*e^4 + 21*e^3 - 80*e^2 - 69*e + 30, -5*e^4 - 4*e^3 + 23*e^2 + 5*e - 2, -11*e^4 - 21*e^3 + 58*e^2 + 84*e - 26, 9*e^4 + 11*e^3 - 54*e^2 - 41*e + 45, 12*e^4 + 16*e^3 - 58*e^2 - 47*e + 9, 28*e^4 + 32*e^3 - 153*e^2 - 107*e + 77, 25*e^4 + 33*e^3 - 138*e^2 - 108*e + 68, -6*e^4 - 5*e^3 + 42*e^2 + 17*e - 42, e^4 + e^3 - 8*e^2 - 14*e + 9, -7*e^4 - 14*e^3 + 43*e^2 + 64*e - 28, -14*e^4 - 21*e^3 + 82*e^2 + 87*e - 50, -22*e^4 - 25*e^3 + 117*e^2 + 77*e - 61, 22*e^4 + 33*e^3 - 119*e^2 - 127*e + 78, -22*e^4 - 35*e^3 + 122*e^2 + 138*e - 72, 3*e^4 + 6*e^3 - 9*e^2 - 18*e - 12, -5*e^4 - 7*e^3 + 22*e^2 + 12*e + 9, 24*e^4 + 27*e^3 - 138*e^2 - 99*e + 77, 11*e^4 + 17*e^3 - 55*e^2 - 67*e + 27, 27*e^4 + 38*e^3 - 146*e^2 - 141*e + 73, 18*e^4 + 19*e^3 - 103*e^2 - 71*e + 48, 11*e^4 + 16*e^3 - 64*e^2 - 51*e + 54, -18*e^4 - 27*e^3 + 96*e^2 + 90*e - 60, -13*e^4 - 20*e^3 + 69*e^2 + 74*e - 35, 19*e^4 + 22*e^3 - 99*e^2 - 80*e + 34, -8*e^4 - 16*e^3 + 38*e^2 + 68*e - 11, 7*e^4 + 4*e^3 - 46*e^2 - 15*e + 25, -12*e^4 - 17*e^3 + 68*e^2 + 70*e - 52, -e^4 - 8*e^3 + 7*e^2 + 31*e - 21, 5*e^4 + 7*e^3 - 19*e^2 - 15*e - 12, 9*e^4 + 20*e^3 - 44*e^2 - 76*e + 17, e^4 - 9*e^3 - 16*e^2 + 37*e + 22, e^4 + 4*e^3 - 12*e^2 - 13*e + 44, 11*e^4 + 11*e^3 - 62*e^2 - 24*e + 35, 18*e^4 + 27*e^3 - 93*e^2 - 87*e + 26, 2*e^4 + 3*e^3 - 22*e^2 - 27*e + 42, -31*e^4 - 40*e^3 + 168*e^2 + 134*e - 90, -10*e^4 - 10*e^3 + 61*e^2 + 42*e - 58, 9*e^3 + 5*e^2 - 50*e - 13, 14*e^4 + 13*e^3 - 80*e^2 - 47*e + 47, -12*e^4 - 15*e^3 + 72*e^2 + 57*e - 61, 8*e^3 + 4*e^2 - 37*e - 11, -17*e^4 - 25*e^3 + 96*e^2 + 97*e - 43, -23*e^4 - 39*e^3 + 117*e^2 + 138*e - 55, -35*e^4 - 53*e^3 + 190*e^2 + 196*e - 105, 10*e^4 + 12*e^3 - 41*e^2 - 36*e - 7, 18*e^4 + 19*e^3 - 103*e^2 - 63*e + 59, -10*e^4 - 16*e^3 + 48*e^2 + 56*e - 22, -10*e^4 - 6*e^3 + 59*e^2 + 15*e - 52, 5*e^4 + 3*e^3 - 34*e^2 + 3*e + 50, -18*e^4 - 20*e^3 + 92*e^2 + 67*e - 33, 34*e^4 + 42*e^3 - 179*e^2 - 147*e + 76, 25*e^4 + 41*e^3 - 136*e^2 - 154*e + 85, 6*e^4 + 7*e^3 - 37*e^2 - 32*e + 20, 31*e^4 + 52*e^3 - 166*e^2 - 192*e + 91, 5*e^4 + 15*e^3 - 24*e^2 - 66*e + 4, 13*e^4 + 18*e^3 - 71*e^2 - 54*e + 52, -22*e^4 - 21*e^3 + 119*e^2 + 66*e - 61, 2*e^4 + 4*e^3 - 11*e^2 - 20*e + 21, -17*e^4 - 18*e^3 + 94*e^2 + 42*e - 58, -8*e^4 - 4*e^3 + 52*e^2 - 30, -5*e^4 - 2*e^3 + 29*e^2 - 3*e - 2, e^4 + 7*e^3 + 4*e^2 - 32*e - 21, -16*e^4 - 17*e^3 + 89*e^2 + 63*e - 45, -16*e^4 - 26*e^3 + 97*e^2 + 103*e - 73, 25*e^4 + 31*e^3 - 132*e^2 - 104*e + 46, -5*e^3 - 4*e^2 + 13*e + 12, -11*e^4 - 10*e^3 + 51*e^2 + 19*e - 4, e^4 + 3*e^3 - 11*e^2 - 10*e + 42, -22*e^4 - 22*e^3 + 129*e^2 + 74*e - 77, 14*e^4 + 26*e^3 - 75*e^2 - 94*e + 62, -9*e^4 - 13*e^3 + 51*e^2 + 43*e - 6, -10*e^4 - 5*e^3 + 60*e^2 + 11*e - 44, -19*e^4 - 30*e^3 + 105*e^2 + 105*e - 74, -28*e^4 - 31*e^3 + 149*e^2 + 95*e - 69, 8*e^4 + 12*e^3 - 49*e^2 - 56*e + 45, -8*e^4 - 16*e^3 + 30*e^2 + 46*e + 14, -22*e^4 - 26*e^3 + 116*e^2 + 87*e - 30, -7*e^4 - 4*e^3 + 42*e^2 + 5*e - 27, 9*e^4 + 17*e^3 - 53*e^2 - 78*e + 34, -2*e^4 + 4*e^3 + 21*e^2 - 29*e - 45, 35*e^4 + 49*e^3 - 188*e^2 - 176*e + 92, 18*e^4 + 14*e^3 - 107*e^2 - 31*e + 69, 18*e^4 + 18*e^3 - 99*e^2 - 48*e + 52, 10*e^4 + 12*e^3 - 62*e^2 - 46*e + 36, -20*e^4 - 30*e^3 + 99*e^2 + 117*e - 28, -5*e^4 - 14*e^3 + 30*e^2 + 71*e - 34, -22*e^4 - 25*e^3 + 111*e^2 + 83*e - 41, 3*e^4 - e^3 - 17*e^2 + 17*e + 17, -13*e^4 - 21*e^3 + 65*e^2 + 72*e - 32, -10*e^4 - 20*e^3 + 54*e^2 + 74*e - 47, 18*e^4 + 32*e^3 - 95*e^2 - 132*e + 55, -31*e^4 - 41*e^3 + 169*e^2 + 154*e - 78, 5*e^4 + 16*e^3 - 15*e^2 - 58*e - 26, 31*e^4 + 45*e^3 - 173*e^2 - 171*e + 100, 30*e^4 + 45*e^3 - 168*e^2 - 174*e + 102, -16*e^4 - 19*e^3 + 87*e^2 + 68*e - 52, 20*e^4 + 28*e^3 - 114*e^2 - 109*e + 46, 14*e^4 + 16*e^3 - 75*e^2 - 49*e + 34, -10*e^4 - 21*e^3 + 50*e^2 + 84*e - 35, 23*e^4 + 26*e^3 - 120*e^2 - 92*e + 49]; heckeEigenvalues := AssociativeArray(); for i := 1 to #heckeEigenvaluesArray do heckeEigenvalues[primes[i]] := heckeEigenvaluesArray[i]; end for; ALEigenvalues := AssociativeArray(); ALEigenvalues[ideal] := -1; // EXAMPLE: // pp := Factorization(2*ZF)[1][1]; // heckeEigenvalues[pp]; print "To reconstruct the Hilbert newform f, type f, iso := Explode(make_newform());"; function make_newform(); M := HilbertCuspForms(F, NN); S := NewSubspace(M); // SetVerbose("ModFrmHil", 1); NFD := NewformDecomposition(S); newforms := [* Eigenform(U) : U in NFD *]; if #newforms eq 0 then; print "No Hilbert newforms at this level"; return 0; end if; print "Testing ", #newforms, " possible newforms"; newforms := [* f: f in newforms | IsIsomorphic(BaseField(f), K) *]; print #newforms, " newforms have the correct Hecke field"; if #newforms eq 0 then; print "No Hilbert newform found with the correct Hecke field"; return 0; end if; autos := Automorphisms(K); xnewforms := [* *]; for f in newforms do; if K eq RationalField() then; Append(~xnewforms, [* f, autos[1] *]); else; flag, iso := IsIsomorphic(K,BaseField(f)); for a in autos do; Append(~xnewforms, [* f, a*iso *]); end for; end if; end for; newforms := xnewforms; for P in primes do; xnewforms := [* *]; for f_iso in newforms do; f, iso := Explode(f_iso); if HeckeEigenvalue(f,P) eq iso(heckeEigenvalues[P]) then; Append(~xnewforms, f_iso); end if; end for; newforms := xnewforms; if #newforms eq 0 then; print "No Hilbert newform found which matches the Hecke eigenvalues"; return 0; else if #newforms eq 1 then; print "success: unique match"; return newforms[1]; end if; end if; end for; print #newforms, "Hilbert newforms found which match the Hecke eigenvalues"; return newforms[1]; end function;