// Magma code for working with number field 23.23.434498173468775074445875189356350743903198920600715375079386035604631941932241.1 // 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^23 - 4324*x^21 - 6486*x^20 + 5382299*x^19 - 23233933*x^18 - 2724444300*x^17 + 29686323629*x^16 + 512000507352*x^15 - 10294412120640*x^14 + 6885232378569*x^13 + 1102283075184770*x^12 - 8796561210816172*x^11 - 7798660667836453*x^10 + 474243077814357335*x^9 - 2826995282155771181*x^8 + 5949260040976823570*x^7 + 9167317157190582864*x^6 - 81864894718917833350*x^5 + 204445625295748936871*x^4 - 269173314235796280477*x^3 + 199912058984322799237*x^2 - 78929282232647458634*x + 12862216057817467245); // 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^23 - 4324*x^21 - 6486*x^20 + 5382299*x^19 - 23233933*x^18 - 2724444300*x^17 + 29686323629*x^16 + 512000507352*x^15 - 10294412120640*x^14 + 6885232378569*x^13 + 1102283075184770*x^12 - 8796561210816172*x^11 - 7798660667836453*x^10 + 474243077814357335*x^9 - 2826995282155771181*x^8 + 5949260040976823570*x^7 + 9167317157190582864*x^6 - 81864894718917833350*x^5 + 204445625295748936871*x^4 - 269173314235796280477*x^3 + 199912058984322799237*x^2 - 78929282232647458634*x + 12862216057817467245); 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))];