# SageMath code for working with number field 30.0.8851375005191383462430321349782942769050796640392327.1 # Some of these functions may take a long time to execute (this depends on the field). # Define the number field: x = polygen(QQ); K. = NumberField(x^30 - 4*x^29 - 32*x^28 + 92*x^27 + 588*x^26 - 752*x^25 - 6717*x^24 - 805*x^23 + 44049*x^22 + 54263*x^21 - 93757*x^20 - 350454*x^19 - 591742*x^18 + 307201*x^17 + 3600412*x^16 + 5669890*x^15 - 632841*x^14 - 17605194*x^13 - 34361042*x^12 - 23087625*x^11 + 45815379*x^10 + 119941341*x^9 + 85868062*x^8 - 30516460*x^7 - 62011703*x^6 + 46150369*x^5 + 155790202*x^4 + 147686157*x^3 + 67768188*x^2 + 10788948*x + 751689) # Defining polynomial: K.defining_polynomial() # Degree over Q: K.degree() # Signature: K.signature() # Discriminant: K.disc() # Ramified primes: K.disc().support() # Autmorphisms: K.automorphisms() # Integral basis: K.integral_basis() # Class group: K.class_group().invariants() # Unit group: UK = K.unit_group() # Unit rank: UK.rank() # Generator for roots of unity: UK.torsion_generator() # Fundamental units: UK.fundamental_units() # Regulator: K.regulator() # Analytic class number formula: # self-contained SageMath code snippet to compute the analytic class number formula x = polygen(QQ); K. = NumberField(x^30 - 4*x^29 - 32*x^28 + 92*x^27 + 588*x^26 - 752*x^25 - 6717*x^24 - 805*x^23 + 44049*x^22 + 54263*x^21 - 93757*x^20 - 350454*x^19 - 591742*x^18 + 307201*x^17 + 3600412*x^16 + 5669890*x^15 - 632841*x^14 - 17605194*x^13 - 34361042*x^12 - 23087625*x^11 + 45815379*x^10 + 119941341*x^9 + 85868062*x^8 - 30516460*x^7 - 62011703*x^6 + 46150369*x^5 + 155790202*x^4 + 147686157*x^3 + 67768188*x^2 + 10788948*x + 751689) DK = K.disc(); r1,r2 = K.signature(); RK = K.regulator(); RR = RK.parent() hK = K.class_number(); wK = K.unit_group().torsion_generator().order(); 2^r1 * (2*RR(pi))^r2 * RK * hK / (wK * RR(sqrt(abs(DK)))) # Intermediate fields: K.subfields()[1:-1] # Galois group: K.galois_group(type='pari') # 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 Sage: p = 7; [(e, pr.norm().valuation(p)) for pr,e in K.factor(p)]