Mathematics – Rings and Algebras
Scientific paper
2009-05-29
Mathematics
Rings and Algebras
23 pages
Scientific paper
In our paper Semi-symmetric Algebras: General Constructions, J. Algebra, 148 (1992), pp. 479-496, we present the construction of the semi-symmetric algebra of a module over a commutative ring with unit, which generalizes the tensor algebra, the symmetric algebra, and the exterior algebra, deduce some of its functorial properties, and prove a classification theorem. In the present paper we continue the study of the semi-symmetric algebra and discuss its graded dual, the corresponding canonical bilinear form, its coalgebra structure, as well as left and right inner products. Here we present a unified treatment of these topics whose exposition in N. Bourbaki, Alg\` ebre, Chapitres 1--3, Hermann, Paris 1970, is made simultaneously for the above three particular (and, without a shadow of doubt - most important) cases.
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