ON BRANE SOLUTIONS IN M(ATRIX) THEORY

In this paper we consider brane solutions of the form G/H in M(atrix) theory, showing the emergence of world volume coordinates for the case s where G = SU(n). We examine a particular solution with a world volum e geometry of the form CP2 x S-1 in some detail and show how a smooth manifold structure emerges in the large N limit. In this limit the sol ution becomes static; it is not supersymmetric but is part of a supers ymmetric set of configurations. Supersymmetry in small locally flat re gions can be obtained, but this is not globally defined. A general gro up theoretic analysis of the previously known spherical brane solution s is also given. (C) 1998 Elsevier Science B.V.