Systemes holonomes d'équations aux g-différences

We develop the theory of holonomic systems of q-difference equations in a way similar to the theory of holonomic modules over the Weyl algebra. We are then able to give answers to some questions raised by K. Aomoto [2, 3] concerning hypergeometric systems of q-difference equations. 1980 Mathematics Subject Classification (1985 Revision) : 33D60, 32C38, 39A10.