Results 31 to 40 of about 74,200 (309)

Nonlinear renormalization group equation for matrix models [PDF]

open access: yesPhysics Letters B, 1993
12 pages, TIT/HEP-228, NUP-A-93-13 ( a few corrections in formulae, the conclusion not changed)
S. Higuchi   +3 more
openaire   +2 more sources

An iterative method to solve a nonlinear matrix equation [PDF]

open access: yes, 2016
n this paper, an iterative method to solve one kind of nonlinear matrix equation is discussed. For each initial matrix with some conditions, the matrix sequences generated by the iterative method are shown to lie in a fixed open ball.
Jingjing, Peng   +2 more
core   +1 more source

The Matrix Kadomtsev­Petviashvili Equation as a Source of Integrable Nonlinear Equations [PDF]

open access: yesJournal of Nonlinear Mathematical Physics, 2002
arxiv version is already ...
openaire   +2 more sources

On the positive definite solutions of a nonlinear matrix equation [PDF]

open access: yes2012 4th Electronic System-Integration Technology Conference, 2012
In this paper, the nonlinear matrix equation is investigated. Based on the fixed-point theory, the boundary and the existence of the solution with the case are discussed. An algorithm that avoids matrix inversion with the case is proposed.
Ming Hui Wang   +2 more
openaire   +1 more source

Robust mixed H-2/H∞ control for a class of nonlinear stochastic systems [PDF]

open access: yes, 2006
The problem of mixed H2/H∞ control is considered for a class of uncertain discrete-time nonlinear stochastic systems. The nonlinearities are described by statistical means of the stochastic variables and the uncertainties are represented by deterministic
Wang, Z, Ho, DWC, Yang, F
core   +1 more source

On a Nonlinear Matrix Equation Arising in Nano Research

open access: yesSIAM Journal on Matrix Analysis and Applications, 2012
The matrix equation $X+A^{T}X^{-1}A=Q$ arises in Green's function calculations in nano research, where $A$ is a real square matrix and $Q$ is a real symmetric matrix dependent on a parameter and is usually indefinite. In practice one is mainly interested in those values of the parameter for which the matrix equation has no stabilizing solutions.
Chun-Hua Guo   +2 more
openaire   +2 more sources

Riemann–Hilbert approach and N-soliton solution for an eighth-order nonlinear Schrödinger equation in an optical fiber

open access: yesAdvances in Difference Equations, 2019
This paper aims to present an application of the Riemann–Hilbert approach to treat higher-order nonlinear differential equation that is an eighth-order nonlinear Schrödinger equation arising in an optical fiber. Starting from the spectral analysis of the
Zhou-Zheng Kang   +2 more
doaj   +1 more source

An iterative scheme for solving a Lippmann – Schwinger nonlinear integral equation by the Galerkin method

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2023
Background. The purpose of the work is to solve the nonlinear integral equation describing the propagation of electromagnetic waves inside a body located in free space. Materials and methods.
Andrey O. Lapich, Mikhail Yu. Medvedik
doaj   +1 more source

Two meshless methods for solving nonlinear ordinary differential equations in engineering and applied sciences

open access: yesNonlinear Engineering, 2020
In this paper, two meshless methods have been introduced to solve some nonlinear problems arising in engineering and applied sciences. These two methods include the operational matrix Bernstein polynomials and the operational matrix with Chebyshev ...
Al-Jawary Majeed A., Ibraheem Ghada H.
doaj   +1 more source

The BLUES function method for second-order partial differential equations: Application to a nonlinear telegrapher equation

open access: yesPartial Differential Equations in Applied Mathematics, 2022
An analytic iteration sequence based on the extension of the BLUES (Beyond Linear Use of Equation Superposition) function method to partial differential equations (PDEs) with second-order time derivatives is studied. The original formulation of the BLUES
Jonas Berx, Joseph O. Indekeu
doaj   +1 more source

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