A Gröbner free alternative for polynomial system solving
M Giusti, G Lecerf, B Salvy - Journal of complexity, 2001 - Elsevier
Given a system of polynomial equations and inequations with coefficients in the field of
rational numbers, we show how to compute a geometric resolution of the set of common …
rational numbers, we show how to compute a geometric resolution of the set of common …
Straight-line programs in geometric elimination theory
M Giusti, J Heintz, JE Morais, J Morgenstem… - Journal of pure and …, 1998 - Elsevier
We present a new method for solving symbolically zero-dimensional polynomial equation
systems in the affine and toric case. The main feature of our method is the use of problem …
systems in the affine and toric case. The main feature of our method is the use of problem …
Sharp estimates for the arithmetic Nullstellensatz
We present sharp estimates for the degree and the height of the polynomials in the
Nullstellensatz over the integer ring ℤ. The result improves previous work of P. Philippon, C …
Nullstellensatz over the integer ring ℤ. The result improves previous work of P. Philippon, C …
Lower bounds for Diophantine approximations
M Giusti, J Heintz, K Hägele, JE Morais… - Journal of Pure and …, 1997 - Elsevier
We introduce a subexponential algorithm for geometric solving of multivariate polynomial
equation systems whose bit complexity depends mainly on intrinsic geometric invariants of …
equation systems whose bit complexity depends mainly on intrinsic geometric invariants of …
When polynomial equation systems can be “solved” fast?
We present a new method for solving symbolically zero-dimensional polynomial equation
systems in the affine and toric case. The main feature of our method is the use of an …
systems in the affine and toric case. The main feature of our method is the use of an …
Hilbert's Nullstellensatz is in the polynomial hierarchy
P Koiran - Journal of complexity, 1996 - Elsevier
We show that if the Generalized Riemann Hypothesis is true, the problem of deciding
whether a system of polynomial equations in several complex variables has a solution is in …
whether a system of polynomial equations in several complex variables has a solution is in …
Polar varieties and efficient real elimination
B Bank, M Giusti, J Heintz, GM Mbakop - Mathematische Zeitschrift, 2001 - Springer
Let S_0 be a smooth and compact real variety given by a reduced regular sequence of
polynomials f_1,...,f_p. This paper is devoted to the algorithmic problem of finding efficiently …
polynomials f_1,...,f_p. This paper is devoted to the algorithmic problem of finding efficiently …
Polar varieties, real equation solving and data-structures: the hypersurface case
B Bank, M Giusti, J Heintz, GM Mbakop - arXiv preprint alg-geom/9609004, 1996 - arxiv.org
In this paper we apply for the first time a new method for multivariate equation solving which
was developed in\cite {gh1},\cite {gh2},\cite {gh3} for complex root determination to the {\em …
was developed in\cite {gh1},\cite {gh2},\cite {gh3} for complex root determination to the {\em …
Cook's versus Valiant's hypothesis
P Bürgisser - Theoretical Computer Science, 2000 - Elsevier
Valiant developed a nonuniform algebraic analogue of the theory of NP-completeness for
computations with polynomials over a field k in (Valiant, Proceedings of the 11th ACM …
computations with polynomials over a field k in (Valiant, Proceedings of the 11th ACM …
Ideal membership in polynomial rings over the integers
M Aschenbrenner - Journal of the American Mathematical Society, 2004 - ams.org
We present a new approach to the ideal membership problem for polynomial rings over the
integers: given polynomials $ f_0, f_1,\dots, f_n\in\mathbb Z [X] $, where $ X=(X_1,\dots …
integers: given polynomials $ f_0, f_1,\dots, f_n\in\mathbb Z [X] $, where $ X=(X_1,\dots …