FRACTIONAL BRANES AND WRAPPED BRANES

We discuss the ''fractional D-branes'' which arise in orbifold resolut ion. We argue that they arise as subsectors of the Coulomb branch of t he quiver gauge theory used to describe both string theory D-brane and Matrix theory on an orbifold, and thus must form part of the full phy sical Hilbert space. We make further observations confirming their int erpretation as wrapped membranes.