Results 1 to 10 of about 191,170 (252)

Algebraic systems of matrices and Gröbner basis theory

open access: yesLinear Algebra and its Applications, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
G. Bourgeois
semanticscholar   +2 more sources

From su(2) Gaudin Models to Integrable Tops [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
In the present paper we derive two well-known integrable cases of rigid body dynamics (the Lagrange top and the Clebsch system) performing an algebraic contraction on the two-body Lax matrices governing the (classical) su(2) Gaudin models.
Matteo Petrera, Orlando Ragnisco
doaj   +8 more sources

Algebraic properties of Manin matrices II: q-analogues and integrable systems [PDF]

open access: yesAdvances in Applied Mathematics, 2012
We study a natural q-analogue of a class of matrices with noncommutative entries, which were first considered by Yu. I. Manin in 1988 in relation with quantum group theory, (called Manin Matrices in [5]) .
Chervov, A.   +3 more
core   +3 more sources

Block-encoding dense and full-rank kernels using hierarchical matrices: applications in quantum numerical linear algebra [PDF]

open access: yesQuantum, 2022
Many quantum algorithms for numerical linear algebra assume black-box access to a block-encoding of the matrix of interest, which is a strong assumption when the matrix is not sparse.
Quynh T. Nguyen   +2 more
doaj   +3 more sources

On equivalence of algebraic and finite element formulations of prestressed bar structures [PDF]

open access: yesScientific Reports
The equivalence of the finite element method and the algebraic formulation of the equations of moderately thick and thin elastic frames, beams, trusses, and grillages within the Timoshenko and Euler-Bernoullie theory derived earlier by Pełczyński ...
Jan Pełczyński
doaj   +2 more sources

Explicit preconditioning of systems of linear algebraic equations with dense matrices

open access: yesJournal of Soviet Mathematics, 1988
For linear systems of equations \(Ax=b\) with full nonsymmetric nondiagonal dominant matrix of great order an explicit preconditioning G for the best convergence of an iterative method, in this case ORTHOMIN(k), is suggested. The structure of the preconditioning matrix G depends on the module of the elements of the matrix A. Three types of the strategy
L. Y. Kolotilina
semanticscholar   +4 more sources

Performance Analysis of Effective Symbolic Methods for Solving Band Matrix SLAEs [PDF]

open access: yesEPJ Web of Conferences, 2019
This paper presents an experimental performance study of implementations of three symbolic algorithms for solving band matrix systems of linear algebraic equations with heptadiagonal, pentadiagonal, and tridiagonal coefficient matrices.
Veneva Milena, Ayriyan Alexander
doaj   +4 more sources

Solving parametric systems of polynomial equations over the reals through Hermite matrices [PDF]

open access: yesJournal of symbolic computation, 2020
We design a new algorithm for solving parametric systems of equations having finitely many complex solutions for generic values of the parameters. More precisely, let $\mathbf{f} = (f_1, \ldots, f_m)\subset \mathbb{Q}[\mathbf{y}][\mathbf{x}]$ with ...
H. P. Le, M. S. E. Din
semanticscholar   +1 more source

Twisted rational r-matrices and algebraic Bethe ansatz: Application to generalized Gaudin and Richardson models

open access: yesNuclear Physics B, 2021
In the present paper we develop the algebraic Bethe ansatz approach to the case of non-skew-symmetric gl(2)⊗gl(2)-valued Cartan-non-invariant classical r-matrices with spectral parameters. We consider the two families of these r-matrices, namely, the two
T. Skrypnyk, N. Manojlović
doaj   +1 more source

Solution Method for Systems of Nonlinear Fractional Differential Equations Using Third Kind Chebyshev Wavelets

open access: yesAxioms, 2023
Chebyshev Wavelets of the third kind are proposed in this study to solve nonlinear systems of FDEs. The main goal of the method is to convert the nonlinear FDE into a nonlinear system of algebraic equations that can be easily solved using matrix methods.
Sadiye Nergis Tural Polat   +1 more
doaj   +1 more source

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