
We discuss the ``fractional D-branes'' which arise in orbifold resolution. We argue that they arise as subsectors of the Coulomb branch of the 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 physical Hilbert space. We make further observations confirming their interpretation as wrapped membranes.
harvmac, 9 pages
High Energy Physics - Theory, High Energy Physics - Theory (hep-th), Supersymmetric field theories in quantum mechanics, FOS: Physical sciences, String and superstring theories; other extended objects (e.g., branes) in quantum field theory
High Energy Physics - Theory, High Energy Physics - Theory (hep-th), Supersymmetric field theories in quantum mechanics, FOS: Physical sciences, String and superstring theories; other extended objects (e.g., branes) in quantum field theory
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