Results 11 to 20 of about 18,337 (169)
Machines, 2022 This paper studies operator and fractional order nonlinear robust control for a spiral counter-flow heat exchanger with uncertainties and disturbances.
Guanqiang Dong, Mingcong Deng
doaj +1 more source
NONLINEAR EQUATION WITH THE THIRD ORDER SCATTERING OPERATOR
Наука. Инновации. Технологии, 2022 Introduction: most of the differential equations associated with soliton mathematics are obtained using the Lax operator equation or the zero-curvature equation, which are the compatibility condition for a pair of linear differential systems. The case in
Olga Sergeevna Yanovskaya +1 more
doaj
On the Finite Complexity of Solutions in a Degenerate System of Quadratic Equations: Exact Formula
Entropy, 2023 The paper describes an application of the p-regularity theory to Quadratic Programming (QP) and nonlinear equations with quadratic mappings. In the first part of the paper, a special structure of the nonlinear equation and a construction of the 2-factor ...
Olga Brezhneva +2 more
doaj +1 more source
Solutions to p(x)-Laplace type equations via nonvariational techniques [PDF]
Opuscula Mathematica, 2018 In this article, we consider a class of nonlinear Dirichlet problems driven by a Leray-Lions type operator with variable exponent. The main result establishes an existence property by means of nonvariational arguments, that is, nonlinear monotone ...
Mustafa Avci
doaj +1 more source
Mathematics, 2023 In the sense of a conformable fractional operator, we consider a generalized fractional–stochastic nonlinear wave equation (GFSNWE). This equation may be used to depict several nonlinear physical phenomena occurring in a liquid containing gas bubbles ...
Wael W. Mohammed +3 more
doaj +1 more source
On nonlinear evolution operators associated with some nonlinear dispersive equations [PDF]
Proceedings of the American Mathematical Society, 1986 The initial-boundary value problem for a nonlinear dispersive system with time-dependent boundary condition is discussed in the Sobolev space H 1 {H^1} from the point of view of the theory of nonlinear evolution operators.
Oharu, Shinnosuke, Takahashi, Tadayasu
openaire +2 more sources
Functional differential equations with infinite delay in Banach spaces
International Journal of Mathematics and Mathematical Sciences, 1991 In this paper, a definition of the fundamental operator for the linear autonomous functional differential equation with infinite delay in a Banach space is given, and some sufficient and necessary conditions of the fundamental operator being ...
Jin Liang, Tijun Xiao
doaj +1 more source
Complexity, 2018 We consider the application of Koopman theory to nonlinear partial differential equations and data-driven spatio-temporal systems. We demonstrate that the observables chosen for constructing the Koopman operator are critical for enabling an accurate ...
J. Nathan Kutz +2 more
doaj +1 more source
Optimum Integration Procedures for Supercontinuum Simulation
IEEE Photonics Journal, 2012 We study numerical solutions of the generalized nonlinear Schrödinger equation (GNLSE), focusing on the advantage of integrating the nonlinear part of the equation in the frequency domain (FD), rather than in the time domain (TD), when simulating
A. A. Rieznik +4 more
doaj +1 more source
Existence of a Short-Run Equilibrium of the Dixit-Stiglitz-Krugman Model
Discrete Dynamics in Nature and Society, 2018 Each short-run equilibrium of the Dixit-Stiglitz-Krugman model is defined as a solution to the wage equation when the distributions of workers and farmers are given functions.
Minoru Tabata, Nobuoki Eshima
doaj +1 more source