Following the work of Dine and Seiberg for SU(2), we study the leading
irrelevant operators on the moduli space of N=4 supersymmetric SU(N) gauge
theory. These operators are argued to be one-loop exact, and are explicitly
computed.Comment: 6 pages, harvmac. Note added. (Only a subset of the leading
irrelevant operators have been shown to be one-loop exact.