A ug 2 01 3 Difference Chow Form ∗
نویسنده
چکیده
In this paper, the generic intersection theory for difference varieties is presented. Precisely, the intersection of an irreducible difference variety of dimension d > 0 and order h with a generic difference hypersurface of order s is shown to be an irreducible difference variety of dimension d−1 and order h+s. Based on the intersection theory, the difference Chow form for an irreducible difference variety is defined. Furthermore, it is shown that the difference Chow form of an irreducible difference variety V is transformally homogenous and has the same order as V .
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