一些新的等射影多面体
Some New Equiprojective Polyhedra
摘要:
一个凸多面体$P$是$k$ -等投影的,如果它的所有正交投影,即,除了那些平行于$P$的面的阴影,对于某个固定的$k$值,阴影都是$k$ -gon。自1968年以来,构造所有等射影多面体一直是一个公开问题。最近,Hasan和Lubiw [CGTA 40(2):148-155,2008]给出了等投射多面体的特征。在此基础上,通过对已有等射影多面体的切割和粘接,发现了一些新的等射影多面体。
英文摘要:
A convex polyhedron $P$ is $k$-equiprojective if all of its orthogonal projections, i.e., shadows, except those parallel to the faces of $P$ are $k$-gon for some fixed value of $k$. Since 1968, it is an open problem to construct all equiprojective polyhedra. Recently, Hasan and Lubiw [CGTA 40(2):148-155, 2008] have given a characterization of equiprojective polyhedra. Based on their characterization, in this paper we discover some new equiprojective polyhedra by cutting and gluing existing polyhedra.
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。