# SageMath code for working with number field 31.31.10780058321499447579019490584061143592974328542534512659762928215062178274195635731849.1 # 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^31 - x^30 - 330*x^29 + 852*x^28 + 43784*x^27 - 173944*x^26 - 2923572*x^25 + 15562316*x^24 + 100635650*x^23 - 707709554*x^22 - 1616621784*x^21 + 17266725972*x^20 + 7046247776*x^19 - 243865756432*x^18 + 142454592564*x^17 + 2084163747748*x^16 - 2521472241195*x^15 - 10836712986085*x^14 + 18499228115810*x^13 + 32698257976552*x^12 - 74538290301632*x^11 - 47884603550112*x^10 + 168256221920320*x^9 + 4878741111552*x^8 - 195294436805376*x^7 + 62882730299136*x^6 + 92885896276480*x^5 - 43440624908288*x^4 - 15171034030080*x^3 + 6823763935232*x^2 + 786648006656*x + 5192548352) # 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^31 - x^30 - 330*x^29 + 852*x^28 + 43784*x^27 - 173944*x^26 - 2923572*x^25 + 15562316*x^24 + 100635650*x^23 - 707709554*x^22 - 1616621784*x^21 + 17266725972*x^20 + 7046247776*x^19 - 243865756432*x^18 + 142454592564*x^17 + 2084163747748*x^16 - 2521472241195*x^15 - 10836712986085*x^14 + 18499228115810*x^13 + 32698257976552*x^12 - 74538290301632*x^11 - 47884603550112*x^10 + 168256221920320*x^9 + 4878741111552*x^8 - 195294436805376*x^7 + 62882730299136*x^6 + 92885896276480*x^5 - 43440624908288*x^4 - 15171034030080*x^3 + 6823763935232*x^2 + 786648006656*x + 5192548352) 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)]