Affiliation:
1. Dokuz Eylul University: Dokuz Eylul Universitesi
Abstract
Abstract
A graph can be analyzed by means of many graph theoretical parameters and formulas derived from them. One of those parameters is the closeness parameter which is modified to enable calculations in disconnected graphs. In thispaper, we have considered closeness of some tree structures as k-ary tree, binomial trees, binary tree, comet, double comet, double star graph and Ept graph. Upper and lower bounds are investigated for k-ary andbinary trees. Upper bounds comes from perfect form of tree for k-ary tree andits special structure binary tree. Therefore, the closeness values of perfect forms have been formulated. Also, closeness formulas are gained for binomial trees, comet, double comet, double star graphs and Ept graph.
MSC Classification: 05C05, 05C12, 68R10
Publisher
Research Square Platform LLC