THE LOCATING-CHROMATIC NUMBER FOR CERTAIN OF TREES
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We obtain lower and upper bounds for the locating Roman domination number of a tree in terms of its order and the number of leaves and support vertices, and characterize trees achieving
In this research we well determine the coloring pattern and the r-dynamic chromatic number of the comb graph 𝑃𝑛⊙ 𝐾1, central graph of comb graph 𝐶𝑃𝑛⊙ 𝐾1, middle graph of comb graph