About the graceful property of graph C_(4k) ∪ Pn
Yan Xin-li · Journal of Shenyang Institute of Aeronautcal Engineering · 2002
The graceful and interlock of property of circle C4k are proved,as well as the path Pn. Then the graceful and interlock property of graph C4k U Pn which is connected by circle C4k and path Pn are proved, and the graceful symbol of graph C4k U Pn are given.