A LARGE-N REDUCED MODEL AS SUPERSTRING

A matrix model which has the manifest ten-dimensional N = 2 super Poin care invariance is proposed. Interactions between BPS-saturated states are analyzed to show that the massless spectrum is the same as that o f type IIB string theory, It is conjectured that the large-N reduced m odel of ten-dimensional super Yang-Mills theory can be regarded as a c onstructive definition of this model and therefore is equivalent to su perstring theory. (C) 1997 Elsevier Science B.V.