On the unilateral (Delta, D*)-problem
Large digraphs of a specified maximum degree and unilateral diameter are given for small values of these parameters. The constructions are based on different techniques such as voltage digraphs, digraph products, join of cycles, and vertex duplication. Finally, a table with the results is given. (C) 2000 John Wiley & Sons, Inc.
unilateral diameter dense digraphs moore bound large constructions