Algebras generated by reciprocals of linear forms


Let ∆ be a finite set of nonzero linear forms in several variables with coefficients in a field K of characteristic zero. Consider the K-algebra C(∆) of rational functions generated by {1/α | α ∈ ∆}. Then the ring ∂(V ) of differential operators with constant coefficients naturally acts on C(∆). We study the graded ∂(V )-module structure of C(∆). We… (More)


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