More on r-cross t-intersecting families for vector spaces
arxiv（2023）
摘要
Let V be a finite dimensional vector space over a finite field. Suppose
that ℱ_1, ℱ_2, …, ℱ_r are r-cross
t-intersecting families of k-subspaces of V. In this paper, we determine
the extremal structure when ∏_i=1^r|ℱ_i| is maximum under the
condition that (⋂_F∈ℱ_iF)更多
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