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Dimostriamo che la costante che regola la distribuzione dei cosiddetti self numbers è un numero trascendente. Ciò precisa un risultato dimostrato in un precedente articolo dal medesimo titolo, ossia che tale costante sia irrazionale. Il metodo fa uso di una curiosa formula per l'espansione 2-adica di tale numero (già utilizzata nell'altro lavoro) e del profondo Teorema del Sottospazio.
In this note we will determine the associated order of relative extensions of algebraic number fields, which are cyclic of prime order p, assuming that the ground field is linearly disjoint to the pth cyclotomic field, . For quadratic extensions we will furthermore characterize when the ring of integers of the extension field is free over the associated order. All our proofs are quite elementary. As an application, we will determine the Galois module structure of .
Let be a number field with a 2-class group isomorphic to the Klein four-group. The aim of this paper is to give a characterization of capitulation types using group properties. Furthermore, as applications, we determine the structure of the second 2-class groups of some special Dirichlet fields , which leads to a correction of some parts in the main results of A. Azizi and A. Zekhini (2020).
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