(1, 2)-Groups with p3-regulator quotient


Creative Commons License

Mutzbauer O., Solak E.

Journal of Algebra, cilt.320, sa.10, ss.3821-3831, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 320 Sayı: 10
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.jalgebra.2008.09.002
  • Dergi Adı: Journal of Algebra
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3821-3831
  • Orta Doğu Teknik Üniversitesi Adresli: Hayır

Özet

For a prime p and a poset (1, 2) = (τ1, τ2 < τ3) of types, p-reduced almost completely decomposable groups with critical typeset (1, 2) and a p-power as regulating index are called (1, 2)-groups. The number of near-isomorphism types of indecomposable (1, 2)-groups depends on the exponent pk of the regulator quotient. It is shown that indecomposable (1, 2)-groups with a regulator quotient of exponent ≤ p3 have rank ≤4, and if the types τi and the prime p are fixed, then there are precisely four near-isomorphism types of indecomposable groups. It is unknown for which exponent pk0 of the regulator quotient exist infinitely many near-isomorphism types of indecomposable (1, 2)-groups. © 2008 Elsevier Inc. All rights reserved.