王志坚. 奇阶正则图的amida数[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 1987, (1).DOI:
奇阶正则图的amida数
摘要
Orton和Ringeisen断言
奇阶γ-正则图的amida数≤r。本文用构造方法证明了这一结论不成立。除圈和完全图两种特殊情形
对一切可能的奇阶数n和(偶)度数r
存在amida数>r的n阶r—正则图。
Abstract
Orton and Ringeisen have indicated that the amida number of regular graphs of degree γ and odd order is at most γ.In this paper it is shown that the conclu- sion is not true.In fact
for any odd n and even r
where 4≤r≤n-3
we can always constract a regular graph of degree r and order n