PBW-deformation theory and regular central extensions
نویسندگان
چکیده
منابع مشابه
Pbw-deformation Theory and Regular Central Extensions
A deformation U , of a graded K-algebra A is said to be of PBW type if grU is A. It has been shown for Koszul and N -Koszul algebras that the deformation is PBW if and only if the relations of U satisfy a Jacobi type condition. In particular, for these algebras the determination of the PBW property is a finite and explicitly determined linear algebra problem. We extend these results to an arbit...
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ژورنال
عنوان ژورنال: Journal für die reine und angewandte Mathematik (Crelles Journal)
سال: 2007
ISSN: 0075-4102,1435-5345
DOI: 10.1515/crelle.2007.065