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Some New Difference Triangle Sets

James B. Shearer 1
1 Mathematical Sciences Department IBM Research Division T.J. Watson Research Center P.O. Box 218 Yorktown Heights, NY 10598 U.S.A.

Abstract

In [5] Kløve gave tables of the best bounds known on the size of optimal difference triangle sets. In this note, we give examples of difference triangle sets found by computer search which improve on the upper bounds in [5]. In four cases, these examples are proved to be optimal.