arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2104.02760math.CO
收藏

广义五边形几何

Generalized pentagonal geometries

Anthony D. Forbes, Carrie G. Rutherford

摘要:

五边形几何PENT($k$,$r$)是部分线性空间,其中每条线与$k$点关联,每个点与$r$线关联,并且对于每个点$x$,存在与不与$x$共线的那些点精确关联的线。在这里,我们推广的概念,允许点不与$x$共线,以形成点集的施泰纳系统$S(2,k,w)$的块是线的几何。

英文摘要:

A pentagonal geometry PENT($k$, $r$) is a partial linear space, where every line is incident with $k$ points, every point is incident with $r$ lines, and for each point $x$, there is a line incident with precisely those points that are not collinear with $x$. Here we generalize the concept by allowing the points not collinear with $x$ to form the point set of a Steiner system $S(2,k,w)$ whose blocks are lines of the geometry.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑