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3 articles for “$b$-chromatic variance.”
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On b-Coloring Parameters of Some Classes of Graphs
Abstract: AbstractVertex coloring has always been a topic of interest. Motivated by the studies on -chromatic mean and variance of some standard graphs, in this paper, we obtain few results for -chromatic and -chromatic mean and variance of some cycle related graph classes. Here, Vertex coloring of a graph is taken to be the random experiment. Discrete random variable for this random experiment is the color of randomly chosen vertex of …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 6, Issue 2, 2019 · pp. 41–48 Read article
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Injective Coloring Parameters of Some Special Classes of Graphs
Abstract: AbstractThe vertex coloring of a graph can be viewed as a random experiment and with respect to this experiment, a random variable can be defined such that denotes the color of an arbitrarily chosen vertex. In this paper, we broaden the ideas of coloring mean and variance of graphs with respect to a particular type of proper injective coloring and determine these parameters for some standard graph classes.MSC2010: 05C15, 05C38. …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 6, Issue 2, 2019 · pp. 30–41 Read article
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Study on the Degradation of Total Petroleum Hydrocarbon (TPH) by Water Hyacinth Co-composts
Abstract: AbstractThis study was carried out to investigate the rate of total petroleum hydrocarbon (TPH) by water hyacinth co-compost at the Teaching and Research Farm, Faculty of Agriculture, Delta State University (DELSU), Asaba Campus. Five (5) kg of soils was collected from the school farm and measured into eighty-four (84) experimental pots and the treatments were arranged in 4×7 factorial experiment in a completely randomized design replicated three (03) times. The …
Published in Research & Reviews : Journal of Agricultural Science and Technology · Vol. 8, Issue 3, 2019 · pp. 20–26 Read article