Abdul  Jalil M. Khalaf, Mahdi  Gareep Sabbar, 
    On Chromatic Polynomial of Elementary h-Uniform Hyper Cycles,
    Journal of Engineering and Applied Sciences,
    Volume 14,Issue 21,
    2019,
    Pages 7967-7971,
    ISSN 1816-949x,
    jeasci.2019.7967.7971,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2019.7967.7971)
    Abstract: One of the most popular and useful areas of graph theory is graph colorings. Frequently, we are
concerned with determining the least number of colors with which we can achieve a proper coloring on a
hypergraph. Furthermore, we want to count the possible number of different proper colorings on a hygraph with
a given number of colors which is called the chromatic polynomial.
    Keywords: hypercycle;polynomial;hygraph;graph colorings;h-uniform;chromatic;Graph theory