Lattices associated with totally isotropic subspaces in classical spaces
Lattices associated with totally isotropic subspaces in classical spaces
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与经典空间中完全各向同性子空间相关的格子
DOI:
10.1016/j.laa.2009.04.009
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发表时间:
2009-08
影响因子:
1.1
通讯作者:
王恺顺
中科院分区:
文献类型:
--
作者:
王恺顺
Let Fq(2ν+δ)be one of (2ν+δ)-dimensional classical spaces over the finite field Fq, where δ=0,1, or 2. For 0⩽i<ν, let P0denote a maximal totally isotropic subspace of Fq(2ν+δ), and let Q0denote an (i+ω,ω)-totally isotropic subspace of Fq(2ν+δ)contained in P0, here ω=0 or 1. Suppose L(Q0,P0,ω;2ν+δ) denotes the set of all the totally isotropic subspaces U such that U∩P0=Q0including Fq(2ν+δ). Partially ordered by ordinary or reverse inclusion, two families of finite lattices are obtained. This paper discusses their atomic property, geometricity, and compute their characteristic polynomials.
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