A note on gauge invariant operators in noncommutative gauge theories and the Matrix model

In this note we discuss local gauge-invariant operators in noncommutative g auge theories. Inspired by the connection of these theories with the Matrix model, we give a simple construction of a complete set of gauge-invariant operators. We make connection with the recent discussions of candidate oper ators which are dual to closed strings modes. We also discuss large Wilson loops which in the limit of vanishing noncommutativity, reduce to the close d Wilson loops of the ordinary gauge theory. (C) 2000 Elsevier Science B.V. All rights reserved.