// Magma code for working with number field 39.39.1112962024555065990379787974028986797706599025588599389261176471461970163669515376929.1 // Some of these functions may take a long time to execute (this depends on the field). // Define the number field: R := PolynomialRing(Rationals()); K := NumberField(x^39 - 10*x^38 - 55*x^37 + 838*x^36 + 433*x^35 - 29490*x^34 + 36492*x^33 + 574075*x^32 - 1308560*x^31 - 6805710*x^30 + 21722262*x^29 + 50319569*x^28 - 220059875*x^27 - 219014481*x^26 + 1482194078*x^25 + 368114118*x^24 - 6887826619*x^23 + 1579984745*x^22 + 22412813436*x^21 - 12656284391*x^20 - 51075711901*x^19 + 41988060380*x^18 + 80500790810*x^17 - 83924117638*x^16 - 85491405725*x^15 + 107935481554*x^14 + 58560262932*x^13 - 89832821948*x^12 - 24031853409*x^11 + 47511398377*x^10 + 5015492400*x^9 - 15459668136*x^8 - 163687701*x^7 + 2936606920*x^6 - 133518320*x^5 - 294156298*x^4 + 23663051*x^3 + 11997840*x^2 - 1233420*x - 17513); // Defining polynomial: DefiningPolynomial(K); // Degree over Q: Degree(K); // Signature: Signature(K); // Discriminant: OK := Integers(K); Discriminant(OK); // Ramified primes: PrimeDivisors(Discriminant(OK)); // Autmorphisms: Automorphisms(K); // Integral basis: IntegralBasis(K); // Class group: ClassGroup(K); // Unit group: UK, fUK := UnitGroup(K); // Unit rank: UnitRank(K); // Generator for roots of unity: K!f(TU.1) where TU,f is TorsionUnitGroup(K); // Fundamental units: [K|fUK(g): g in Generators(UK)]; // Regulator: Regulator(K); // Analytic class number formula: /* self-contained Magma code snippet to compute the analytic class number formula */ Qx := PolynomialRing(QQ); K := NumberField(x^39 - 10*x^38 - 55*x^37 + 838*x^36 + 433*x^35 - 29490*x^34 + 36492*x^33 + 574075*x^32 - 1308560*x^31 - 6805710*x^30 + 21722262*x^29 + 50319569*x^28 - 220059875*x^27 - 219014481*x^26 + 1482194078*x^25 + 368114118*x^24 - 6887826619*x^23 + 1579984745*x^22 + 22412813436*x^21 - 12656284391*x^20 - 51075711901*x^19 + 41988060380*x^18 + 80500790810*x^17 - 83924117638*x^16 - 85491405725*x^15 + 107935481554*x^14 + 58560262932*x^13 - 89832821948*x^12 - 24031853409*x^11 + 47511398377*x^10 + 5015492400*x^9 - 15459668136*x^8 - 163687701*x^7 + 2936606920*x^6 - 133518320*x^5 - 294156298*x^4 + 23663051*x^3 + 11997840*x^2 - 1233420*x - 17513); OK := Integers(K); DK := Discriminant(OK); UK, fUK := UnitGroup(OK); clK, fclK := ClassGroup(OK); r1,r2 := Signature(K); RK := Regulator(K); RR := Parent(RK); hK := #clK; wK := #TorsionSubgroup(UK); 2^r1 * (2*Pi(RR))^r2 * RK * hK / (wK * Sqrt(RR!Abs(DK))); // Intermediate fields: L := Subfields(K); L[2..#L]; // Galois group: G = GaloisGroup(K); // Frobenius cycle types: // to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$ for $p=7 in Magma: p := 7; [ : pr in Factorization(p*Integers(K))];