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math.CO2018
Symmetry breaking in planar and maximal outerplanar graphs
Saeid Alikhani, Samaneh Soltani
The distinguishing number (index) () of a graph is the least integer such that has a vertex (edge) labeling with labels that is preserved only by a tr…
math.CO2018
Total dominator chromatic number of -subdivision of graphs
Saeid Alikhani, Nima Ghanbari, Samaneh Soltani
Let be a simple graph. A total dominator coloring of , is a proper coloring of the vertices of in which each vertex of the graph is adjacent to every vertex of some colo…