# SageMath code for working with p-adic field 109.1.22.21a1.1. # Define the p-adic field: Prec = 100 # Default precision of 100 Q109 = Qp(109, Prec); x = polygen(QQ) K. = Q109.extension(x^22 + 109) # Defining polynomial: K.defining_polynomial() # Base field Qp: K.base() # Degree over Qp: K.absolute_degree() # Ramification index: K.absolute_e() # Residue field degree (Inertia degree): K.absolute_f() # Maximal unramified subextension: K.maximal_unramified_subextension() # Roots of unity: len(K.roots_of_unity())