摘要

Let mu (R,D) be a self-affine measure associated with an expanding integer matrix R is an element of M(n)(Z) and a finite subset D subset of Z(n). In the present paper we study the mu(R,D)-orthogonality and compatible pair conditions. We also show that any set of mu(R,D)-orthogonal exponentials contains at most 3 elements on the generalized plane Sierpinski gasket and the number 3 is the best.