Browsing Jeremy Haefner (2008 - ) by Author "Pappacena, Christopher"

Now showing items 1-2 of 2

    • Automorphisms of tiled orders 

      Haefner, Jeremy; Pappacena, Christopher (Elsevier, 2002)
      Let Λ be a tiled R-order. We give a description of AutR(Λ) as the semidirect product of Inn(Λ) and a certain subgroup of Aut(Q(Λ)), where Q(Λ) is the link graph of Λ. Additionally, we give criteria for determining when ...

    • Strongly graded hereditary orders 

      Haefner, Jeremy; Pappacena, Christopher (2001-08-28)
      Let R be a Dedekind domain with global quotient field K. The purpose of this note is to provide a characterization of when a strongly graded R-order with semiprime 1-component is hereditary. This generalizes earlier work ...