Luchezar L. Avramov
Ragnar-Olaf Buchweitz
Judith D. Sally
Abstract. Let M and N be finite graded modules over a graded commutative r*
*ing generated
over a field K = R0 by homogeneous elements x1,P. .,.xe of positive degree*
*s d1, . .,.de. By
the Hilbert-Serre Theorem, the Hilbert series n2Z(rankKMn)tnQis the Laur*