𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Computing Toric Ideals

✍ Scribed by A.M. Bigatti; R. La Scala; L. Robbiano


Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
478 KB
Volume
27
Category
Article
ISSN
0747-7171

No coin nor oath required. For personal study only.

✦ Synopsis


Toric ideals are binomial ideals which represent the algebraic relations of sets of power products. They appear in many problems arising from different branches of mathematics. In this paper, we develop new theories which allow us to devise a parallel algorithm and an efficient elimination algorithm. In many respects they improve existing algorithms for the computation of toric ideals.


πŸ“œ SIMILAR VOLUMES


Toric Ideals Generated by Quadratic Bino
✍ Hidefumi Ohsugi; Takayuki Hibi πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 157 KB

A combinatorial criterion for the toric ideal arising from a finite graph to be generated by quadratic binomials is studied. Such a criterion guarantees that every Koszul algebra generated by squarefree quadratic monomials is normal. We present an example of a normal non-Koszul squarefree semigroup

Computing Ideals of Points
✍ J. Abbott; A. Bigatti; M. Kreuzer; L. Robbiano πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 337 KB

We address the problem of computing ideals of polynomials which vanish at a finite set of points. In particular we develop a modular Buchberger-MΓΆller algorithm, best suited for the computation over Q, and study its complexity; then we describe a variant for the computation of ideals of projective p

Using Galois Ideals for Computing Relati
✍ Philippe Aubry; Annick Valibouze πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 340 KB

In this paper we show that some ideals which occur in Galois theory are generated by triangular sets of polynomials. This geometric property seems important for the development of symbolic methods in Galois theory. It may and should be exploited in order to obtain more efficient algorithms, and it e

Computing the Primary Decomposition of Z
✍ Chris Monico πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 228 KB

Let K be an infinite perfect computable field and let I βŠ† K[x] be a zero-dimensional ideal represented by a GrΓΆbner basis. We derive a new algorithm for computing the reduced primary decomposition of I using only standard linear algebra and univariate polynomial factorization techniques. In practice

Ideal Class Groups, Some Computations
✍ R.I. Berger πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 401 KB

Starting from a base ficld with properties similar to those of the rational numbers, the structure of the ideal class group of a biquadratic dicyclic extension is examined. Class number relations and structural connections between the ideal class groups of the intermediate fields allow the determina

Algorithm for Computing Bernstein–Sato I
✍ Rouchdi Bahloul πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 329 KB

Let f 1 , . . . , fp be polynomials in n variables with coefficients in a field K. We associate with these polynomials a number of functional equations and related ideals B, B j and B Ξ£ of K[s 1 , . . . , sp] called Bernstein-Sato ideals. Using standard basis techniques, our aim is to present an alg