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A Maple package for computing Groebner bases of linear difference ideals is described. The underlying algorithm is based on Janet and Janet-like monomial divisions associated with finite difference operators. The package can be used, for…

Symbolic Computation · Computer Science 2009-11-11 Vladimir P. Gerdt , Daniel Robertz

We consider generalizations of Reed-Muller codes, toric codes, and codes from certain plane curves, such as those defined by norm and trace functions on finite fields. In each case we are interested in codes defined by evaluating arbitrary…

Information Theory · Computer Science 2007-07-16 Maria Bras-Amorós , Michael E. O'Sullivan

Each linear code can be described by a code ideal given as the sum of a toric ideal and a non-prime ideal. In this way, several concepts from the theory of toric ideals can be translated into the setting of code ideals. It will be shown…

Algebraic Geometry · Mathematics 2014-01-14 Natalia Dück , Karl-Heinz Zimmermann

Solving zero-dimensional polynomial systems using Gr\"obner bases is usually done by, first, computing a Gr\"obner basis for the degree reverse lexicographic order, and next computing the lexicographic Gr\"obner basis with a change of order…

Symbolic Computation · Computer Science 2022-05-17 Jérémy Berthomieu , Vincent Neiger , Mohab Safey El Din

This article aims to explore the bridge between the algebraic structure of a linear code and the complete decoding process. To this end, we associate a specific binomial ideal $I_+(\mathcal C)$ to an arbitrary linear code. The binomials…

Information Theory · Computer Science 2015-10-22 Irene Márquez-Corbella , Edgar Martínez-Moro , Emilio Suárez-Canedo

The binary Reed-Muller codes can be characterized as the radical powers of a modular algebra. We use the Groebner bases to decode these codes.

We construct a Gr\"obner Basis of the relation ideal of a polynomial, give an interpolation formula for the basis elements and explain the connection of the interpolation formula to the Buchberger--M\"oller algorithm. We present a situation…

Number Theory · Mathematics 2007-05-23 Mathias Lederer

We propose a new algorithm for decoding Reed-Solomon codes (up to half the minimum distance) and for computing inverses in $F[x]/m(x)$. The proposed algorithm is similar in spirit and structure to the Berlekamp-Massey algorithm, but it…

Information Theory · Computer Science 2013-05-20 Jiun-Hung Yu , Hans-Andrea Loeliger

Gr\"{o}bner bases are nowadays central tools for solving various problems in commutative algebra and algebraic geometry. A typical use of Gr\"{o}bner bases is the multivariate polynomial system solving, which enables us to construct…

Symbolic Computation · Computer Science 2024-03-05 Momonari Kudo , Kazuhiro Yokoyama

Solving a polynomial system, or computing an associated Gr\"obner basis, has been a fundamental task in computational algebra. However, it is also known for its notorious doubly exponential time complexity in the number of variables in the…

Commutative Algebra · Mathematics 2024-11-07 Hiroshi Kera , Yuki Ishihara , Yuta Kambe , Tristan Vaccon , Kazuhiro Yokoyama

Analysis of the Berlekamp-Massey-Sakata algorithm for decoding one-point codes leads to two methods for improving code rate. One method, due to Feng and Rao, removes parity checks that may be recovered by their majority voting algorithm.…

Information Theory · Computer Science 2007-07-16 Maria Bras-Amorós , Michael E. O'Sullivan

In this paper, we consider parametric ideals and introduce a notion of comprehensive involutive system. This notion plays the same role in theory of involutive bases as the notion of comprehensive Groebner system in theory of Groebner…

Symbolic Computation · Computer Science 2012-06-18 Vladimir Gerdt , Amir Hashemi

Using the EXIT chart approach, a necessary and sufficient condition is developed for the local stability of iterative decoding of multi-edge type (MET) doubly-generalized low-density parity-check (D-GLDPC) code ensembles. In such code…

Information Theory · Computer Science 2011-12-19 Enrico Paolini , Mark F. Flanagan , Marco Chiani , Marc P. C. Fossorier

Generalized quasi-cyclic (GQC) codes form a wide and useful class of linear codes that includes thoroughly quasi-cyclic codes, finite geometry (FG) low density parity check (LDPC) codes, and Hermitian codes. Although it is known that the…

Information Theory · Computer Science 2008-11-26 Vo Tam Van , Hajime Matsui , Seiichi Mita

We propose a new polynomial-time algorithm for linear programming. We further extend the ideas used in this new linear programming algorithm for nonlinear programming problems. The new algorithm is based on the idea of treating the…

General Mathematics · Mathematics 2019-03-14 Dhananjay P. Mehendale

We present a structure associated to the class of linear codes. The properties of that structure are similar to some structures in the linear algebra techniques into the framework of the Gr\"obner bases tools. It allows to get some insight…

Commutative Algebra · Mathematics 2007-05-23 M. Borges-Quintana , M. Borges-Trenard , E. Martinez-Moro

Ihe first author presented an efficient algorithm for computing involutive (and reduced Groebner) bases. In this paper, we consider a modification of this algorithm which simplifies matters to understand it and to implement. We prove…

Rings and Algebras · Mathematics 2011-08-17 Vladimir P. Gerdt , Amir Hashemi , Benyamin M. -Alizadeh

This paper is a detailed description of an algorithm based on a generalized Buchberger algorithm for constructing Groebner-type bases associated with polynomials of shift operators. The algorithm is used for calculating Feynman integrals…

High Energy Physics - Phenomenology · Physics 2009-11-11 A. V. Smirnov

For Reed-Solomon codes, the key equation relates the syndrome polynomial---computed from the parity check matrix and the received vector---to two unknown polynomials, the locator and the evaluator. The roots of the locator polynomial…

Information Theory · Computer Science 2021-08-06 Michael E. O'Sullivan , Maria Bras-Amorós

Hilbert schemes of zero-dimensional ideals in a polynomial ring can be covered with suitable affine open subschemes whose construction is achieved using border bases. Moreover, border bases have proved to be an excellent tool for describing…

Commutative Algebra · Mathematics 2008-06-26 Lorenzo Robbiano
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