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The subdivision graph of a graceful tree is a graceful tree
1998
Discrete Mathematics
Koh, Rogers and Tan (Discrete Math. 25 (1979) 141-148) give a method to construct a bigger graceful tree from two graceful trees. Based upon their results, we give a new construction, which allows us to prove that the subdivision graph of a graceful tree is still a graceful tree.
doi:10.1016/s0012-365x(97)00069-1
fatcat:qawjsoqwpjhb7aajo6repubcmm