2000 Mathematics Subject Classification: 52A30;
Key words: Starshaped sets, paths of bounded length, starshaped via α-paths;
D O I:
暂无
中图分类号:
学科分类号:
摘要:
Let S be a nonempty closed, simply connected set in the plane. For α > 0, let ℳ denote the family of all maximal subsets of S which are starshaped via paths of length at most α. Then ⋂{M : M in ℳ} is either starshaped via α-paths or empty. The result fails without the simple connectedness condition. However, even with a simple connectedness requirement, there is no Helly theorem for intersections of sets which are starshaped via α-paths.
机构:
Gyeongsang Natl Univ, Dept Math Educ, Jinju, South Korea
Gyeongsang Natl Univ, RINS, Jinju, South KoreaGyeongsang Natl Univ, Dept Math Educ, Jinju, South Korea
Jun, Young Bae
Song, Seok Zun
论文数: 0引用数: 0
h-index: 0
机构:
Jeju Natl Univ, Dept Math, Jeju 690756, South KoreaGyeongsang Natl Univ, Dept Math Educ, Jinju, South Korea