R. Inoue et K. Hikami, NEW APPROACH TO THE LATTICE W-N ALGEBRA AND THE EXCHANGE ALGEBRA, Journal of the Physical Society of Japan, 66(10), 1997, pp. 3013-3020
Studied is the discrete analogue of the classical W-N algebra. We deri
ve a new representation of the exchange algebra. We discuss in detail
a construction of the currents of the lattice W-3 algebra.