Browsing Provost/Chief Academic Officers (RIT) by Author "Pappacena, Christopher"
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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 ...