# SageMath code for working with number field 30.0.2666804038012396184155132908419351509268871501674291.1 # 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 - 5*x^29 + 23*x^28 - 62*x^27 + 198*x^26 - 367*x^25 + 397*x^24 + 1188*x^23 - 7770*x^22 + 27186*x^21 - 70571*x^20 + 106780*x^19 + 113195*x^18 - 1691169*x^17 + 8127778*x^16 - 29421234*x^15 + 90493414*x^14 - 242325966*x^13 + 570478488*x^12 - 1182396448*x^11 + 2168615679*x^10 - 3480425904*x^9 + 4808261059*x^8 - 5571332106*x^7 + 5293750647*x^6 - 4028704993*x^5 + 2404982206*x^4 - 1088744723*x^3 + 357808383*x^2 - 76833878*x + 8961073) # 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 - 5*x^29 + 23*x^28 - 62*x^27 + 198*x^26 - 367*x^25 + 397*x^24 + 1188*x^23 - 7770*x^22 + 27186*x^21 - 70571*x^20 + 106780*x^19 + 113195*x^18 - 1691169*x^17 + 8127778*x^16 - 29421234*x^15 + 90493414*x^14 - 242325966*x^13 + 570478488*x^12 - 1182396448*x^11 + 2168615679*x^10 - 3480425904*x^9 + 4808261059*x^8 - 5571332106*x^7 + 5293750647*x^6 - 4028704993*x^5 + 2404982206*x^4 - 1088744723*x^3 + 357808383*x^2 - 76833878*x + 8961073) 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)]