Key points are not available for this paper at this time.
The Hamiltonian describing Matrix theory on T n is identified with the Hamiltonian describing the dynamics of DO-branes on T n in an appropriate weak coupling limit for all n up to 5. New subtleties arise in taking this weak coupling limit for n = 6, since the transverse size of the DO brane system blows up in this limit. This can be attributed to the appearance of extra light states in the theory from wrapped D6 branes. This subtlety is related to the difficulty in finding a Matrix formulation of M-theory on T 6 .
Ashoke Sen (Thu,) studied this question.