# Oscar code for working with number field 24.4.270761008401829353605241639483649123576469719409942626953125.9. # If you have not already loaded the Oscar package, you should type "using Oscar;" before running the code below. # Some of these functions may take a long time to execute (this depends on the field). # Define the number field: Qx, x = polynomial_ring(QQ); K, a = number_field(x^24 - 7*x^23 - 6*x^22 - 88*x^21 + 800*x^20 + 33972*x^19 - 33044*x^18 - 679237*x^17 - 7247986*x^16 - 18808685*x^15 + 240393964*x^14 + 1548866817*x^13 - 1226398054*x^12 - 64602797057*x^11 - 428838287440*x^10 - 1562629162232*x^9 - 3495074371706*x^8 - 4678953132493*x^7 - 4731483065509*x^6 - 12469668216145*x^5 - 33540673060979*x^4 - 37892792137502*x^3 - 4499980454036*x^2 + 18569747459402*x + 8710672685155) # Defining polynomial: defining_polynomial(K) # Degree over Q: degree(K) # Signature: signature(K) # Discriminant: OK = ring_of_integers(K); discriminant(OK) # Ramified primes: prime_divisors(discriminant(OK)) # Automorphisms: automorphism_group(K) # Integral basis: basis(OK) # Class group: class_group(K) # Unit group: UK, fUK = unit_group(OK) # Unit rank: rank(UK) # Generator for roots of unity: torsion_units_generator(OK) # Fundamental units: [K(fUK(a)) for a in gens(UK)] # Regulator: regulator(K) # Analytic class number formula: # self-contained Oscar code snippet to compute the analytic class number formula Qx, x = polynomial_ring(QQ); K, a = number_field(x^24 - 7*x^23 - 6*x^22 - 88*x^21 + 800*x^20 + 33972*x^19 - 33044*x^18 - 679237*x^17 - 7247986*x^16 - 18808685*x^15 + 240393964*x^14 + 1548866817*x^13 - 1226398054*x^12 - 64602797057*x^11 - 428838287440*x^10 - 1562629162232*x^9 - 3495074371706*x^8 - 4678953132493*x^7 - 4731483065509*x^6 - 12469668216145*x^5 - 33540673060979*x^4 - 37892792137502*x^3 - 4499980454036*x^2 + 18569747459402*x + 8710672685155); OK = ring_of_integers(K); DK = discriminant(OK); UK, fUK = unit_group(OK); clK, fclK = class_group(OK); r1,r2 = signature(K); RK = regulator(K); RR = parent(RK); hK = order(clK); wK = torsion_units_order(K); 2^r1 * (2*pi)^r2 * RK * hK / (wK * sqrt(RR(abs(DK)))) # Intermediate fields: subfields(K)[2:end-1] # Galois group: G, Gtx = galois_group(K); degree(K) > 1 ? (G, transitive_group_identification(G)) : (G, nothing) # Frobenius cycle types: # to obtain a list of [e_i,f_i] for the factorization of the ideal pO_K for p=7 in Oscar: p = 7; pfac = factor(ideal(ring_of_integers(K), p)); [(e, valuation(norm(pr),p)) for (pr,e) in pfac]