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- W1642153648 abstract "We provide a simple and powerful combinatorial method for proving lower bounds for algebraic computation trees over algebraically closed fields of characteristic p>0. We apply our method to prove, for example, an /spl Omega/(n log n) lower bound for the n element distinctness problem, an /spl Omega/(n log(n/k)) lower bound to the k-equal problem-that is deciding whether there are k identical elements out of n input elements, and more. The proof of the main theorem relies on the deep work of B.M. Dwork, P. Deligne, and E. Bombieri on the Weil conjectures. In particular we make use of Bombieri's bound on the degree of the Zeta function of algebraic varieties over finite fields. Our bounds provide a natural extension to the recent topological lower bounds obtained by A. Bjorner, L. Lovasz and A.C. Yao for algebraic computation trees over the real numbers. For the special cases of real subspace arrangements and general complex varieties we can reformulate their specific results using our combinatorial approach without mentioning any topological invariants. >" @default.
- W1642153648 created "2016-06-24" @default.
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- W1642153648 date "2002-12-17" @default.
- W1642153648 modified "2023-09-25" @default.
- W1642153648 title "Algebraic computation trees in characteristic p<0" @default.
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- W1642153648 doi "https://doi.org/10.1109/sfcs.1994.365738" @default.
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