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Section: New Results

Local Generic Position for Root Isolation of Zero-dimensional Triangular Polynomial Systems.

In [30] we present an algorithm based on local generic position (LGP) to isolate the complex or real roots and their multiplicities of a zero-dimensional triangular polynomial system. The Boolean complexity of the algorithm for computing the real roots is single exponential: O ˜ B (N n 2 ), where N=max{d,τ}, d and τ, is the degree and the maximum coefficient bitsize of the polynomials, respectively, and n is the number of variables.