Geodesic
Equivalent classes for K₃-gluings of wheels
Discussiones Mathematicae. Graph Theory, Tome 18 (1998) no. 1, pp. 73-84

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In this paper, the chromaticity of K₃-gluings of two wheels is studied. For each even integer n ≥ 6 and each odd integer 3 ≤ q ≤ [n/2] all K₃-gluings of wheels W_q+2 and W_n-q+2 create an χ-equivalent class.
Keywords: chromatically equivalent graphs, chromatic polynomial, chromatically unique graphs, wheels 
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     author = {Bielak, Halina},
     title = {Equivalent classes for {K₃-gluings} of wheels},
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Bielak, Halina. Equivalent classes for K₃-gluings of wheels. Discussiones Mathematicae. Graph Theory, Tome 18 (1998) no. 1, pp. 73-84. http://geodesic.mathdoc.fr/item/DMGT_1998_18_1_a5/