Title: Department of Computer Science Seminar Date: Thursday, November 13, 2003 Time: 3:00 pm to 4:00pm Venue: Room N101, CSIT Building [108] Speaker: Suresh M. Hegde Title: Applications of Graph Labelings Abstract: Graph labelings, where the vertices and edges are assigned, real values or subsets of a set subject to certain conditions, have often been motivated by their utility to various applied fields and their intrinsic mathematical interest. Graph labelings were first introduced in the mid sixties. In the intervening years, dozens of graph labeling techniques have been studied in over 600 papers. An enormous body of literature has grown around the subject and is still getting embellished due to the increasing number of application driven concepts. Labeled graphs are becoming an increasingly useful family of Mathematical Models for a broad range of applications. While the qualitative labelings of graph elements have inspired research in diverse fields such as conflict resolution in social psychology, electrical circuit theory and energy crisis, quantitative labelings of graphs have led to quite intricate fields of application such as coding theory problems, including the design of good radar location codes, synch-set codes; missile guidance codes and convolution codes with optimal autocorrelation properties. Labeled graphs have also been applied in determining ambiguities in X-ray crystallographic analysis, to design communication network addressing systems, in determining optimal circuit layouts and radio-astronomy, etc. In this talk we discuss some of these applications in detail. Biography: Suresh is visiting from the Dept. of Mathematical and Computational Sciences National Institute of Technology Karnataka Suathkal, Srinivasnagar-575025, India. URL: Further Information: contact Ian Wanless, Ian.Wanless[at]cs.anu.edu.au URL: http://cs.anu.edu.au/lib/seminars/seminars03/dept20031113b