Abelian Gradings on Upper Block Triangular Matrices
- Autori: Valenti,A; Zaicev,M
- Anno di pubblicazione: 2012
- Tipologia: Articolo in rivista (Articolo in rivista)
- OA Link: http://hdl.handle.net/10447/62966
Abstract
Let G be an arbitrary finite abelian group. We describe all possible G-gradings on upper block triangular matrix algebras over an algebraically closed field of characteristic zero.