Results 261 to 270 of about 615,027 (289)

The Investigation on Two Kinds of Nonlinear Matrix Equations

Bulletin of the Malaysian Mathematical Sciences Society, 2018
The authors consider the nonlinear matrix equations \(X+\sum _{i=1}^mB_i^*X^{t_i}B_i=I ...
Li, Jing, Zhang, Yuhai
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Nonlinear Matrix Equations and Population Dynamics

1997
Classical models for the dynamics of biological populations, such as the famous logistic and Lotka-Volterra equations, involve population-level statistics and parameters. In the “structured” population models of this book, individual members of the population are classified in some manner, usually by means of certain physiological characteristics, and ...
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On positive definite solution of a nonlinear matrix equation

Numerical Linear Algebra with Applications, 2006
AbstractIn this paper, some necessary and sufficient conditions for the existence of the positive definite solutions for the matrix equationX+A*X−αA=Qwith α ∈ (0, ∞) are given. Iterative methods to obtain the positive definite solutions are established and the rates of convergence of the considered methods are obtained. Copyright © 2006 John Wiley &
Peng, Zhen-yun, El-Sayed, Salah M.
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Modified Matrix Factorizations for Solving Systems of Nonlinear Equations

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 1986
AbstractThe modified Cholesky factorization due to Gill and Murray as well as an adaptation to the case of nonsymmetric LU‐factorizations described in the literature often generate modified Newton directions which are badly scaled. In order to overcome the deficiencies observed a new technique for modifying LU‐factorizations is proposed which avoids ...
Hoy, A., Schwetlick, H.
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Matrix Li–Yau–Hamilton Estimates for Nonlinear Parabolic Equations

The Journal of Geometric Analysis
The Harnack estimates for heat equations and geometric flows are important and useful tools in geometric analysis. In their fundamental work in 1986, Li and Yau derived gradient estimates and Harnack inequalities for solutions of the heat equation on a compact Riemannian manifold. Later in 1993, \textit{R. S. Hamilton} [Commun. Anal. Geom. 1, No.
Xu, Pang, Liu, Hao-Yue, Ren, Xin-An
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Matrix computations and nonlinear equations

Numerical Linear Algebra with Applications, 2011
Owe Axelsson, Xiaojun Chen
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Inverse scattering and soliton solutions of high-order matrix nonlinear Schrödinger equation

Nonlinear Dynamics, 2022
Xue-Wei Yan
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HSS-like method for solving complex nonlinear Yang–Baxter matrix equation

Engineering With Computers, 2020
Mehdi Dehghan, Akbar Shirilord
exaly  

A novel iterative method for the solution of a nonlinear matrix equation

Applied Numerical Mathematics, 2020
Khosro Sayevand
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Cauchy Matrix Type Solutions for the Nonlocal Nonlinear Schrödinger Equation

Reports on Mathematical Physics, 2019
Song-lin Zhao
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