Geodesic
Trace identities and central polynomials in the matrix superalgebras $M_{n,k}$
Sbornik. Mathematics, Tome 56 (1987) no. 1, pp. 187-206 Cet article a éte moissonné depuis la source Math-Net.Ru

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A complete description is given of trace identities for matrix superalgebras $M_{n,k}=\biggl\{\begin{pmatrix} a_{11} & a_{12} \\ a_{21} & a_{22} \end{pmatrix}\biggr\}$, where $a_{11}$ and $a_{22}$ are square matrices of orders $n$ and $k$ respectively over the even elements of a Grassmann algebra $G$ with countably many generators, while $a_{12}$ and $a_{21}$ are $n\times k$ and $k\times n$ rectangular matrices respectively over the odd elements of $G$. A relation is found between multilinear trace identities of degree $ l$ in the algebra $M_{n,k}$ and irreducible representations of a symmetric group of order $(l+1)!\,$. It is proved that over a field of characteristic zero all trace identities of $M_{n,k}$ follow from identities of degree $nk+n+k$ that hold in that algebra. For every algebra $M_{n,k}$ over a field of arbitrary characteristic a central polynomial is given explicitly. Bibliography: 7 titles. 
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Yu. P. Razmyslov. Trace identities and central polynomials in the matrix superalgebras $M_{n,k}$. Sbornik. Mathematics, Tome 56 (1987) no. 1, pp. 187-206. http://geodesic.mathdoc.fr/item/SM_1987_56_1_a11/

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