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 …
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 …
[HTML][HTML] Computing the equidimensional decomposition of an algebraic closed set by means of lifting fibers
G Lecerf - Journal of Complexity, 2003 - Elsevier
We present a new probabilistic method for solving systems of polynomial equations and
inequations. Our algorithm computes the equidimensional decomposition of the Zariski …
inequations. Our algorithm computes the equidimensional decomposition of the Zariski …
[PDF][PDF] On triangular decompositions of algebraic varieties
MM Maza - 2000 - csd.uwo.ca
We propose an efficient algorithm for computing triangular decompositions of algebraic
varieties. It is based on an incremental process and produces components in order of …
varieties. It is based on an incremental process and produces components in order of …
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 …
A sparse effective Nullstellensatz
M Sombra - Advances in Applied Mathematics, 1999 - Elsevier
We present bounds for the sparseness in the Nullstellensatz. These bounds can give a
much sharper characterization than degree bounds of the monomial structure of the …
much sharper characterization than degree bounds of the monomial structure of the …
On Smale's 17th problem: a probabilistic positive solution
C Beltrán, LM Pardo - Foundations of Computational Mathematics, 2008 - Springer
Smale's 17th Problem asks “Can a zero of n complex polynomial equations in n unknowns
be found approximately, on the average [for a suitable probability measure on the space of …
be found approximately, on the average [for a suitable probability measure on the space of …