Abstract
An H-decomposition of G is a partition P of E(G) into blocks, each element of which induces a copy of H. Amalgamations of graphs have proved to be a valuable tool in the construction of H-decompositions. The method can force decompositions to satisfy fairness notions. Here the use of the method is further applied to (s, p)-equitable block-colorings of H-decompostions: a coloring of the blocks using exactly s colors such that each vertex v is incident with blocks colored with exactly p colors, the blocks containing v being shared out as evenly as possible among the p color classes. Recently interest has turned to the color vector \(V(E)=(c_1(E), c_2(E),\) \(\dots , c_s(E))\) of such colorings. Amalgamations are used to construct (s, p)-equitable block-colorings of \(C_4\)-decompositions of \(K_n - F\) and \(K_2\)-decompositions of \(K_{n}\), focusing on one unsolved case with each where \(c_1\) is as small as possible and \(c_2\) is as large as possible.
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Matson, E.B., Rodger, C.A. (2018). Amalgamations and Equitable Block-Colorings. In: Ghosh, D., Giri, D., Mohapatra, R., Savas, E., Sakurai, K., Singh, L. (eds) Mathematics and Computing. ICMC 2018. Communications in Computer and Information Science, vol 834. Springer, Singapore. https://doi.org/10.1007/978-981-13-0023-3_5
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