NAME: David and Gregory Chudnovsky NOTE: David and Gregory's talk will be delivered by Mourad Ismail. ADDRESS: Institute for Mathematics and Advanced Supercomputing Polytechnic University Brooklyn, NY 11201 TITLE OF TALK: Orthogonal Polynomials and the Solution of the Pulse Width Modulation Problem. ABSTRACT OF TALK: It is shown how orthogonal polynomials and solitons lead to the solution of the pulse width modulation problem of accurately representing a harmonic wave using only square forms of fixed height.