Results 61 to 70 of about 3,441,413 (166)

A Simple Introduction to Gröbner Basis Methods in String Phenomenology

open access: yesAdvances in High Energy Physics, 2011
I give an elementary introduction to the key algorithm used in recent applications of computational algebraic geometry to the subject of string phenomenology.
James Gray
doaj   +1 more source

GL‐algebras in positive characteristic II: The polynomial ring

open access: yesProceedings of the London Mathematical Society, Volume 131, Issue 6, December 2025.
Abstract We study GL$\mathbf {GL}$‐equivariant modules over the infinite variable polynomial ring S=k[x1,x2,…,xn,…]$S = k[x_1, x_2, \ldots, x_n, \ldots]$ with k$k$ an infinite field of characteristic p>0$p > 0$. We extend many of Sam–Snowden's far‐reaching results from characteristic zero to this setting.
Karthik Ganapathy
wiley   +1 more source

The symbolic problems associated with Runge-Kutta methods and their solving in Sage

open access: yesDiscrete and Continuous Models and Applied Computational Science, 2019
Runge-Kutta schemes play a very important role in solving ordinary differential equations numerically. At first we want to present the Sage routine for calculation of Butcher matrix, we call it an rk package.
Yu Ying
doaj   +1 more source

Mirror symmetry, Laurent inversion, and the classification of Q$\mathbb {Q}$‐Fano threefolds

open access: yesTransactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.
Abstract We describe recent progress in a program to understand the classification of three‐dimensional Fano varieties with Q$\mathbb {Q}$‐factorial terminal singularities using mirror symmetry. As part of this we give an improved and more conceptual understanding of Laurent inversion, a technique that sometimes allows one to construct a Fano variety X$
Tom Coates   +2 more
wiley   +1 more source

The Gröbner fan and Gröbner walk for modules [PDF]

open access: yes, 2005
This paper extends the theory of the Gröbner fan and Gröbner walk for ideals in polynomial rings to the case of submodules of free modules over a polynomial ring.
Auerbach, Ruth L., Ruth L. Auerbach
core   +1 more source

Poseidon and Neptune: Gröbner Basis Cryptanalysis Exploiting Subspace Trails

open access: yesIACR Transactions on Symmetric Cryptology
At the current state of the art, algebraic attacks are the most efficient method for finding preimages and collisions for arithmetization-oriented hash functions, such as the closely related primitives Poseidon/Poseidon2 and Neptune.
Lorenzo Grassi   +2 more
doaj   +1 more source

A new approach for the forward kinematics of nearly general Stewart platform with an extra sensor

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2017
In this paper, a new approach for the forward kinematics of nearly general Stewart platform (i.e., both the fixed base and moving platform are restricted to planar platforms) with an extra sensor is presented.
Shili CHENG, Yanli LIU, Hongtao WU
doaj   +1 more source

The buchberger Gröbner basis algorithm

open access: yes, 2016
This Demonstration shows the main steps of Buchberger's Gröbner basis algorithm for a chosen monomial ordering. (Only two choices of monomial ordering are used here.) The input is a basis for an ideal in the ring of polynomials in two variables ...
Kozlowski, Andrzej
core   +2 more sources

A new Gröbner basis conversion method based on stabilization techniques [PDF]

open access: yes, 2008
We propose a new method for converting a Gröbner basis w.r.t. one term order into a Gröbner basis w.r.t. another term order by using the algorithm stabilization techniques proposed by Shirayanagi and Sweedler.
Kiyoshi Shirayanagi   +3 more
core   +1 more source

Border Basis of an Ideal of Points and its Application in Experimental Design and Regression

open access: yesپژوهش‌های ریاضی, 2020
Introduction Border bases are a generalization of Gröbner bases for zero-dimensional ideals which have attracted the interest of many researchers recently. More precisely, border bases provide a new method to find a structurally stable monomial basis for
Samira Poukhajouei   +2 more
doaj  

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