%A LI Jing-jing, BIAN Hong, YU Hai-zheng
%T Maximum matching forcing number in some special graphs
%0 Journal Article
%D 2020
%J JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE)
%R 10.6040/j.issn.1671-9352.0.2019.613
%P 71-76
%V 55
%N 10
%U {http://lxbwk.njournal.sdu.edu.cn/CN/abstract/article_3350.shtml}
%8 2020-10-20
%X The topological index of chemical molecule is a kind of numerical invariant, which can predict indirectly the physical and chemical properties of the corresponding chemical. The reformulated reciprocal degree distance index is a generalized of reciprocal degree distance, defined as:(-overR)_{t}(G)=∑_{{u,v}⊆V(G)}(d_{G}(u)+d_{G}(v))/(d_{G}(u,v)+t), t≥0^{［1］}. Phenylene chain is a kind of important aromatic chemical molecule, which have strongly chemical background. We determined extremal phenylene chains with minimum and maximum reformulated reciprocal degree distance indices in all phenylene chains with *n* hexagons.