科研之友
微信
新浪微博
Facebook
分享链接
摘要
A projection of the bouquet graph B with two cycles is said to be trivial if only trivial embeddings are obtained from the projection. In this paper a finite set of nontrivial embeddings of B is shown to be minimal among those which produce all nontrivial projections of B.
- 出版日期2011-2
