About the Graceful Property of R(4,1×n_1,n_2)
Chun Li · 2001
The graceful property as well as the interlock property of R(4,1×n 1,n 2 ) is discussed, and the graph of R(4,1×n 1,n 2) is proved to have graceful property and interlock property. The graceful symbol of R(4,1×n 1,n 2 ) is also given out.