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Paper   IPM / M / 16696
School of Mathematics
  Title:   Pre-Polya group in even dihedral extensions of Q
  Author(s):  Abbas Maarefparvar
  Status:   Published
  Journal: Int. J. Math.
  Vol.:  32
  Year:  2021
  Pages:   8 Pages
  Supported by:  IPM
  Abstract:
Investigating on Pólya groups [] in non-Galois number fields, Chabert [] introduced the notion of pre-Pólya group \Po(−)nr, which is a generalization of the pre-Pólya condition, duo to Zantema []. In this paper, using class field theory, we describe the pre-Pólya group of a Dn-field K, for n ≥ 4 an even integer, where Dn denotes the dihedral group of order 2n. Moreover, for special case n=4, we improve the Zantema's upper bound on the maximum ramification in Pólya D4-fields.

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