People have paid close attention to hyperplane arrangements and matroids in these thirty years in the world.
超平面构形和拟阵这两门数学学科近几十年来受到国际上的广泛关注。
参考来源 - 超平面中心构形的可约性及因子分解
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Matroid
abstract:In combinatorics, a branch of mathematics, a matroid or independence structure is a structure that captures and generalizes the notion of linear independence in vector spaces.