Solving zero-dimensional systems through the rational univariate representation

F Rouillier - Applicable Algebra in Engineering, Communication …, 1999 - Springer
This paper is devoted to the resolution of zero-dimensional systems in K [X 1,… X n], where
K is a field of characteristic zero (or strictly positive under some conditions). We follow the …

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 …

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 …

A new criterion for normal form algorithms

B Mourrain - … Symposium on Applied Algebra, Algebraic Algorithms …, 1999 - Springer
In this paper, we present a new approach for computing normal forms in the quotient algebra
A of a polynomial ring R by an ideal I. It is based on a criterion, which gives a necessary and …

Polar varieties and computation of one point in each connected component of a smooth real algebraic set

M Safey El Din, E Schost - … of the 2003 international symposium on …, 2003 - dl.acm.org
Let f1, ldots, fs be polynomials in Q [X1,..., Xn] that generate a radical ideal and let V be their
complex zero-set. Suppose that V is smooth and equidimensional; then we show that …

Matrices in elimination theory

IZ Emiris, B Mourrain - Journal of Symbolic Computation, 1999 - Elsevier
The last decade has witnessed the rebirth of resultant methods as a powerful computational
tool for variable elimination and polynomial system solving. In particular, the advent of …

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 …

Computing parametric geometric resolutions

É Schost - Applicable Algebra in Engineering, Communication …, 2003 - Springer
Given a polynomial system of n equations in n unknowns that depends on some parameters,
we define the notion of parametric geometric resolution as a means to represent some …

A subdivision-based algorithm for the sparse resultant

JF Canny, IZ Emiris - Journal of the ACM (JACM), 2000 - dl.acm.org
Multivariate resultants generalize the Sylvester resultant of two polynomials and
characterize the solvability of a polynomial system. They also reduce the computation of all …

A nearly optimal algorithm for deciding connectivity queries in smooth and bounded real algebraic sets

MSE Din, É Schost - Journal of the ACM (JACM), 2017 - dl.acm.org
A roadmap for a semi-algebraic set S is a curve which has a non-empty and connected
intersection with all connected components of S. Hence, this kind of object, introduced by …