On Schur algebras and little Schur algebras
On Schur algebras and little Schur algebras
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DOI:
10.1016/j.jalgebra.2009.04.027
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发表时间:
2009-09
影响因子:
0.9
通讯作者:
Qiang Fu
中科院分区:
文献类型:
--
作者:
Qiang Fu
Let ζrbe the natural algebra homomorphism from the enveloping algebra UQ(η) of glηto the Schur algebra SQ(η,r). We will present a BLM-realization of UQ(η) and the restricted enveloping algebra of glη. This result will be used to construct various bases for UQ(η,r):=ζr(UQ(η)) and little Schur algebras. Finally we will discuss the relation between the little q-Schur algebra and the little Schur algebra through the construction of a B-basis for the little q-Schur algebra over B. Here B=Z[ε,ε−1] and ε∈C is an lth primitive root of 1 with l⩾3 being odd.