@article{(Open Science Index):https://publications.waset.org/pdf/9999407, title = {On Chromaticity of Wheels}, author = {Zainab Yasir Al-Rekaby and Abdul Jalil M. Khalaf}, country = {}, institution = {}, abstract = {Let the vertices of a graph such that every two adjacent vertices have different color is a very common problem in the graph theory. This is known as proper coloring of graphs. The possible number of different proper colorings on a graph with a given number of colors can be represented by a function called the chromatic polynomial. Two graphs G and H are said to be chromatically equivalent, if they share the same chromatic polynomial. A Graph G is chromatically unique, if G is isomorphic to H for any graph H such that G is chromatically equivalent to H. The study of chromatically equivalent and chromatically unique problems is called chromaticity. This paper shows that a wheel W12 is chromatically unique. }, journal = {International Journal of Mathematical and Computational Sciences}, volume = {8}, number = {8}, year = {2014}, pages = {1149 - 1152}, ee = {https://publications.waset.org/pdf/9999407}, url = {https://publications.waset.org/vol/92}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 92, 2014}, }