Mathematics – Rings and Algebras
Scientific paper
2006-09-23
Mathematics
Rings and Algebras
10pages, also available at http://learn.tsinghua.edu.cn:8080/2002315664/dyang.htm
Scientific paper
By studying certain kind of centralizer algebras of the affine Schur algebra
$\widetilde{S}(n,r)$ we show that $\widetilde{S}(n,r)$ is Noetherian and we
determine its center. Assuming $n\geq r$, we show that $\widetilde{S}(n+1,r)$
is Morita equivalent to $\widetilde{S}(n,r)$, and the Schur functor is an
equivalence under certain conditions.
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