Results 11 to 20 of about 554 (70)

A Fast Approach to Creative Telescoping [PDF]

open access: yes, 2010
In this note we reinvestigate the task of computing creative telescoping relations in differential-difference operator algebras. Our approach is based on an ansatz that explicitly includes the denominators of the delta parts.
Koutschan, Christoph
core   +2 more sources

On the rank of $n\times n$ matrix multiplication [PDF]

open access: yes, 2013
For every $p\leq n$ positive integer we obtain the lower bound $(3-\frac{1}{p+1})n^2-\big(2\binom{2p}{p+1}-\binom{2p-2}{p-1}+2\big)n$ for the rank of the $n\times n$ matrix multiplication. This bound improves the previous one $(3-\frac{1}{p+1})n^2-\big(1+
Massarenti, Alex, Raviolo, Emanuele
core   +2 more sources

Dynamics of Lump Solutions, Rogue Wave Solutions and Traveling Wave Solutions for a (3 + 1)-Dimensional VC-BKP Equation

open access: yesEast Asian Journal on Applied Mathematics, 2019
The (3 + 1)-dimensional variable-coefficient B-type Kadomtsev-Petviashvili equation is studied by using the Hirota bilinear method and the graphical representations of the solutions.
Ding Guo   +3 more
semanticscholar   +1 more source

Finite-dimensional Zinbiel algebras and combinatorial structures

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
In this paper, we study the link between finite-dimensional Zinbiel algebras and combinatorial structures or (pseudo)digraphs determining which configurations are associated with those algebras.
Ceballos Manuel   +2 more
doaj   +1 more source

A note on minimal resolutions of vector–spread Borel ideals

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
We consider vector–spread Borel ideals. We show that these ideals have linear quotients and thereby we determine the graded Betti numbers and the bigraded Poincaré series.
Crupi Marilena, Ficarra Antonino
doaj   +1 more source

Quantum computation of discrete logarithms in semigroups

open access: yesJournal of Mathematical Cryptology, 2014
We describe an efficient quantum algorithm for computing discrete logarithms in semigroups using Shor's algorithms for period finding and the discrete logarithm problem as subroutines.
Childs Andrew M., Ivanyos Gábor
doaj   +1 more source

The short resolution of a semigroup algebra [PDF]

open access: yes, 2017
This work generalizes the short resolution given in Proc. Amer. Math. Soc. \textbf{131}, 4, (2003), 1081--1091, to any affine semigroup. Moreover, a characterization of Ap\'{e}ry sets is given.
Ojeda, Ignacio   +1 more
core   +3 more sources

On the resolvent of an ideal and some applications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 70, Page 4421-4434, 2003., 2003
We give an algorithm to compute a resolvent of an algebraic variety without computing its irreducible components; we decompose the radical of an ideal into prime ideals and we test the primality of a regular ideal.
Driss Bouziane, Abdelilah Kandri Rody
wiley   +1 more source

Classification of Filiform Lie Algebras up to dimension 7 Over Finite Fields

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
This paper tries to develop a recent research which consists in using Discrete Mathematics as a tool in the study of the problem of the classification of Lie algebras in general, dealing in this case with filiform Lie algebras up to dimension 7 over ...
Falcón Óscar J.   +4 more
doaj   +1 more source

Analysis of a certain polycyclic-group-based cryptosystem

open access: yesJournal of Mathematical Cryptology, 2015
We investigate security properties of the Anshel–Anshel–Goldfeld commutator key-establishment protocol [Math. Res. Lett. 6 (1999), 287–291] used with certain polycyclic groups described by Eick and Kahrobaei [http://arxiv.org/abs/math.GR/0411077].
Kotov Matvei, Ushakov Alexander
doaj   +1 more source

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