Richard Hammack Author

Richard Hammack is an associate professor in the Department of Mathematics and Applied Mathematics at Virginia Commonwealth University. Dr. Hammack is a member of the American Mathematical Society, the Mathematical Association of America, and the Institute of Combinatorics and its Applications. He earned a Ph.D. in mathematics from the University of North Carolina at Chapel Hill.

Wilfried Imrich is professor emeritus in the Department of Mathematics and Information Technology at Montanuniversität Leoben. His research interests include the structure of finite and infinite graphs, graph automorphisms, combinatorial group theory, and graph algorithms. Dr. Imrich earned a Ph.D. from the University of Vienna.

Sandi Klavžar is a professor in the Faculty of Mathematics and Physics at the University of Ljubljana and in the Faculty of Natural Sciences and Math at the University of Maribor. Dr. Klavžar is an editorial board member of ArsMathematica Contemporanea, Asian-European Journal of Mathematics, Discussiones Mathematicae Graph Theory, European Journal of Combinatorics, and MATCH Communications in Mathematical and in Computer Chemistry.