Download or read book Mathematical Combinatorics, Vol. 4/2012 written by Linfan Mao and published by Infinite Study. This book was released on with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers on Magic Graphoidal on Join of Two Graph, An Equation Related to θ-Centralizers in Semiprime Gamma Rings, Further Results on Global Connected Domination Number of Graphs, Total Dominator Colorings in Cycles, and other topics. Contributors: Akinola L. S., Agboola A. A. A., G. Mahadevan, A. Selvam Avadayappan, Twinkle Johns, M. F. Hoque, H. O. Roshid, Teena Liza John, Mathew Varkey T. K., and others.