Limits of Matrix Theory in Curved Space
arXiv:hep-th/9806176 · doi:10.1016/S0550-3213(99)00019-X
Abstract
We study curved space versions of matrix string theory taking as a definition of the theory a gauged matrix sigma model. By analyzing the divergent terms in the loop expansion for the effective action we reduce the problem to a simple matrix generalization of the standard string theory beta function calculation. It is then demonstrated that the model can only be consistent for Ricci flat manifolds with vanishing six-dimensional Euler density.
17 pages, LaTex, 3 figures, 2 references added, minor changes