Lower Bounds for Degrees of Irreducible Brauer Characters of Finite General Linear Groups

Lower Bounds for Degrees of Irreducible Brauer Characters of Finite General Linear Groups
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有限一般线性群不可约布劳尔特征度的下界

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发表时间:
2000
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通讯作者:
A. Kleshchev
A. Kleshchev
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作者:
Jonathan Brundan;A. Kleshchev

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设G表示具有q个元素的有限域上的有限一般线性群GLn(Fq)。与n的每一个分划λ相关联,存在一个g的不可约的单幂复字符χλ。χλ的次是由Green 's hook公式[8,p.444]给出的q上的多项式;多项式是阶为b(λ ‘)的一元多项式,其中λ ’是λ的转置,对于n的划分μ = (m1≥m2≥···≥mh > 0), b(μ)表示n(n+1) 2−∑h i=1 imi。格林公式的一个简单结论是
Let G denote the finite general linear group GLn(Fq) over the finite field with q elements. Associated to each partition λ of n, there is an irreducible unipotent complex character χλ of G. The degree of χλ is a polynomial in q given by Green’s hook formula [8, p.444]; the polynomial is monic of degree b(λ′) where λ′ is the transpose of λ and, for a partition μ = (m1 ≥ m2 ≥ · · · ≥ mh > 0) of n, b(μ) denotes n(n+1) 2 − ∑h i=1 imi. An easy consequence of Green’s formula is that