helly meaning in English

埃利
赫吕

One of them is about geometric transversal
其中有关几何横截的helly型问题一直颇受关注。
In this disser - tation we discuss two typical problems in the combinatorial geometry mentioned in [ 12 ] . helly ' s theorem plays a very important role in combinatorial geome - try
本文就其中两类典型问题加以讨论：一类是helly型问题和几何横截问题，另一类是嵌入与覆盖问题。
In chapter 4 we obtain the helly number for hyperplane transversal to translates of a convex cube in r ~ ( d ) . where we prove that the helly number for such families is 5 when d = 2 , and is greater than or equal to d + 3 when d 3
在第4章中我们探讨了o中超平面横截单位立方体平移形成的集族的heily数，证得碑中此heily数为5 ，在呼中此heily数z民并推广至呼，在胸中此heily数d 3
The theorem states that for a finite family a of at least d + 1 convex sets in r ~ ( d ) , if every d + 1 members of a have a point in common , then there is a point common to all the members of a . there are many gener - alizations of helly theorem
这些问题的共同特点是由几何元素出发，研究其抽象的关联性质。 helly定理是组合几何中一个非常重要的定理，由其衍生出的多种多样的问题统称helly型问题。