Generalized conformal symmetry and oblique AdS-CFT correspondence for matrix theory

The large-N behaviour of matrix theory is discussed on the basis of the pre viously proposed generalized conformal symmetry. The concept of 'oblique' A dS-CFT correspondence, in which the conformal symmetry involves both the sp acetime coordinates and the string coupling constant, is proposed. Based on the explicit predictions for two-point correlators, possible implications for the matrix-theory conjecture are discussed.