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Mostrando ítems 1-5 de 5
Ponencia
Analysis of the Parameters of Transfers in Rapid Transit Network Design
(Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik, 2006)
The rapid transit network design problem consists of the location of train alignments and stations in an urban traffic context. The originality of our study is to incorporate into the location model the decisions about ...
Ponencia
Decomposition of principal autotopisms into triples of a Latin square
(2006)
Triples of a Latin square L and isotopisms of its autotopism group U (L) can be used to get a secret sharing scheme in Cryptography. Although the weight of in formation given by the latter is usually greater than that given ...
Ponencia
Latin squares associated to principal autotopisms of long cycles. Application in Cryptography
(2006-04)
Fixed a principal isotopism $\Theta=(\alpha,\beta,\epsilon)\in S_n^3$, where $S_n$ is the symmetric group of the set $N=\{0,1,...,n-1\}$, we are going to study in this paper the number $\Delta(\Theta)$ of Latin squares ...
Capítulo de Libro
Algorithmic Invariants for Alexander Modules
(2006)
Let $G$ be a group given by generators and relations. It is possible to compute a presentation matrix of a module over a ring through Fox's differential calculus. We show how to use Gröbner bases as an algorithmic tool ...
Capítulo de Libro
Sudokus and Gröbner Bases: not only a Divertimento
(2006)
Sudoku is a logic-based placement puzzle. We recall how to translate this puzzle into a 9-colouring problem which is equivalent to a (big) algebraic system of polynomial equations. We study how far Gröbner bases techniques ...