The automorphisms of generalized cyclic Azumaya algebras
We define a nonassociative generalization of cyclic Azumaya algebras employing skew polynomial rings D[t;σ], where D is an Azumaya algebra of constant rank with center C and σ an automorphism of D, such that σ|C has finite order. The automorphisms of these algebras are canonically induced by ring au...
Gespeichert in:
Veröffentlicht in: | Journal of pure and applied algebra 2021-04, Vol.225 (4), p.106540, Article 106540 |
---|---|
1. Verfasser: | |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | We define a nonassociative generalization of cyclic Azumaya algebras employing skew polynomial rings D[t;σ], where D is an Azumaya algebra of constant rank with center C and σ an automorphism of D, such that σ|C has finite order. The automorphisms of these algebras are canonically induced by ring automorphisms of the skew polynomial ring D[t;σ] used in their construction. We achieve a description of their inner automorphisms. Results on the automorphisms of classical Azumaya algebras and central simple algebras of this type are obtained as special cases. |
---|---|
ISSN: | 0022-4049 1873-1376 |
DOI: | 10.1016/j.jpaa.2020.106540 |