Results 11 to 20 of about 1,955,543 (186)

Quantum Circulant Preconditioner for Linear System of Equations [PDF]

open access: yes, 2018
We consider the quantum linear solver for $Ax=b$ with the circulant preconditioner $C$. The main technique is the singular value estimation (SVE) introduced in [I. Kerenidis and A. Prakash, Quantum recommendation system, in ITCS 2017].
A. Ambainis   +7 more
core   +3 more sources

Linear systems of Diophantine equations

open access: yesThe Electronic Journal of Linear Algebra, 2022
Given free modules $M\subseteq L$ of finite rank $f\geq 1$ over a principal ideal domain $R$, we give a procedure to construct a basis of $L$ from a basis of $M$ assuming the invariant factors or elementary divisors of $L/M$ are known. Given a matrix $A\in M_{m,n}(R)$ of rank $r$, its nullspace $L$ in $R^n$ is a free $R$-module of rank $f=n-r$.
openaire   +4 more sources

Tropical differential equations [PDF]

open access: yes, 2015
Tropical differential equations are introduced and an algorithm is designed which tests solvability of a system of tropical linear differential equations within the complexity polynomial in the size of the system and in its coefficients.
Grigoriev, Dima
core   +1 more source

Solution of the system of the 2-refined neutrosophic linear equations by using Cramer’s rule [PDF]

open access: yesNeutrosophic Sets and Systems
In this paper, we introduced Cramer's rule for solving a system of the 2-refined neutrosophic linear equations. We defined the general form of the 2-refined neutrosophic linear equations and generalized this to system of the 2-refined neutrosophic linear
Yaser Ahmad Alhasan   +2 more
doaj   +1 more source

Discrete Orthogonal Polynomials with Hypergeometric Weights and Painlev\'e VI [PDF]

open access: yes, 2018
We investigate the recurrence coefficients of discrete orthogonal polynomials on the non-negative integers with hypergeometric weights and show that they satisfy a system of non-linear difference equations and a non-linear second order differential ...
Filipuk, Galina, Van Assche, Walter
core   +3 more sources

Highly efficient numerical scheme for solving fuzzy system of linear and non-linear equations with application in differential equations

open access: yesApplied Mathematics in Science and Engineering, 2022
In this research, we suggested a numerical iterative scheme for investigating the numerical solution of fuzzy linear and nonlinear systems of equations, particularly where the linear or nonlinear system co-efficient is a crisp number and the right-hand ...
Mudassir Shams   +4 more
doaj   +1 more source

An experimental comparison of two preconditioned iterative methods to solve the elliptic partial differential equations [PDF]

open access: yesComputational Algorithms and Numerical Dimensions, 2022
System of linear equations plays an important role in science and engineering. One of the applications of this system occurs in the discretization of the partial differential equations.
Seyyed Ahmad Edalatpanah
doaj   +1 more source

On a system of differential equations with random parameters

open access: yesСовременная математика: Фундаментальные направления, 2022
An explicit formula for the mathematical expectation and second moment functions of a solution to a linear system of ordinary differential equations with a random parameter and a vector random righthand side is obtained.
V. G. Zadorozhniy, G. S. Tikhomirov
doaj   +1 more source

ILU preconditioning based on the FAPINV algorithm [PDF]

open access: yesOpuscula Mathematica, 2015
A technique for computing an ILU preconditioner based on the factored approximate inverse (FAPINV) algorithm is presented. We show that this algorithm is well-defined for H-matrices.
Davod Khojasteh Salkuyeh   +2 more
doaj   +1 more source

TECHNOLOGY OF CONSTRUCTING OF GUADRATIC EQUATIONS AND SYSTEMS OF LINEAR ALGEBRAIC EQUATIONS WITH PARAMETERS IN A MAPLE-MEDIUM

open access: yesÌнформаційні технології в освіті, 2017
The problem of constructing quadratic equations and systems of equations with parameters using Maple-technology is studied. Today, the "learning tasks of reverse thinking" (V.A. Krutetsky) or simply "inverse problems" (P.M.Erdniev) are increasingly being
Kushnir V.
doaj   +1 more source

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