论文标题
$ i_ {1,t} $的临界数 - 免费的三角形二进制矩阵
The critical number of $I_{1,t}$-free triangle-free binary matroids
论文作者
论文摘要
一个简单的二进制原始曲霉,被视为有限的二进制投影几何$ pg(n-1,2)$的限制,为$ i_ {1,t} $ - 如果任何级别的$ t $ flat $ pg(n-1,2)$,则免费的,其与Matroid的互动不是单element集合。在本文中,我们表明简单的$ i_ {1,t} $ - 免费和三角形的二进制矩阵对任何$ t \ geq 1 $均具有关键数字。
A simple binary matroid, viewed as a restriction of a finite binary projective geometry $PG(n-1,2)$, is $I_{1,t}$-free if for any rank-$t$ flat of $PG(n-1,2)$, its intersection with the matroid is not a one-element set. In this paper, we show that the simple $I_{1,t}$-free and triangle-free binary matroids have bounded critical number for any $t \geq 1$.