Chevalley’s theorem with restricted variables
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First, a generalization of Chevalley’s classical theorem from 1936 on polynomial equations f(x 1,...,x N ) = 0 over a finite field K is given, where the variables x i are restricted to arbitrary subsets A i ⊆ K. The proof uses Alon’s Nullstellensatz. Next, a theorem on integer polynomial congruences f(x 1,...,x N ) ≡ 0 (mod p v ) with restricted variables is proved, which generalizes a more recent result of Schanuel. Finally, an extension of Olson’s theorem on zero-sum sequences in finite Abelian p-groups is derived as a corollary.
Mathematics Subject Classification (2000)11D79 20K01
- E. Warning: Bemerkung zur vorstehenden Arbeit von Herrn Chevalley, Abh. Math. Sem. Univ. Hamburg 11 (1936), 76–83.Google Scholar