Results 11 to 20 of about 10,322 (241)

On Some Relations between Accretive, Positive, and Pseudocontractive Operators and Passivity Results in Hilbert Spaces and Nonlinear Dynamic Systems [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2017
This paper investigates some parallel relations between the operators I-G and G in Hilbert spaces in such a way that the pseudocontractivity, asymptotic pseudocontractivity, and asymptotic pseudocontractivity in the intermediate sense of one of them are ...
M. De la Sen
doaj   +2 more sources

Approximation properties of a certain nonlinear Durrmeyer operators [PDF]

open access: yesFilomat, 2017
The present paper is concerned with a certain sequence of the nonlinear Durrmeyer operators NDn, very recently introduced by the author [22] and [23], of the form (NDnf)(x)=?10 Kn (x,t,f(t))dt, 0 ? x ? 1, n ? N, acting on Lebesgue measurable functions defined on [0,1], where Kn (x,t,u) = Fn (x,t)Hn(u) satisfy some suitable assumptions. As a
Harun Karsli
openaire   +5 more sources

Qualitative properties of discrete nonlinear parabolic operators [PDF]

open access: yesNumerische Mathematik, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Róbert Horváth   +2 more
openaire   +3 more sources

Two-sided iterative method based on the use of the Green's function in problems of numerical analysis of some electromechanical systems

open access: yesВісник Харківського національного університету імені В.Н. Каразіна. Серія: Математичне моделювання, інформаційні технології, автоматизовані системи управління, 2022
Relevance. The paper considers the problem of numerical analysis of a nonlinear boundary value problem that models an electrostatic microelectromechanical system under the action of external pressure. Microelectromechanical systems combine mechanical and
Оксана Кончаковська   +1 more
doaj   +1 more source

On Recovering Differential Operators on a Closed Set from Spectra [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2019
The Sturm – Liouville differential operators on closed sets of the real line are considered. Properties of their spectral characteristics are obtained and the inverse problem of recovering the operators from their spectra is studied. An algorithm for the
Yurko, Vyacheslav Anatol'evich
doaj   +1 more source

Nonlinear input-normal realizations based on the differential eigenstructure of hankel operators [PDF]

open access: yes, 2005
This paper investigates the differential eigenstructure of Hankel operators for nonlinear systems. First, it is proven that the variational system and the Hamiltonian extension with extended input and output spaces can be interpreted as the Gâteaux ...
Fujimoto, K.,   +3 more
core   +1 more source

Quantum Current Algebra in Action: Linearization, Integrability of Classical and Factorization of Quantum Nonlinear Dynamical Systems

open access: yesUniverse, 2022
This review is devoted to the universal algebraic and geometric properties of the non-relativistic quantum current algebra symmetry and to their representations subject to applications in describing geometrical and analytical properties of quantum and ...
Anatolij K. Prykarpatski
doaj   +1 more source

Balanced Realization and Model Order Reduction for Nonlinear Systems Based on Singular Value Analysis [PDF]

open access: yes, 2004
This paper discusses balanced realization and model order reduction for both continuous-time and discrete-time general nonlinear systems based on singular value analysis of the corresponding Hankel operators.
Fujimoto, Kenji   +6 more
core   +1 more source

Elliptic Equations with Arbitrarily Directed Translations in Half-Spaces

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2023
In this paper, we investigate the half-space Dirichlet problem for elliptic differential-difference equations with superpositions of differential operators and translation operators acting in arbitrary directions parallel to the boundary hyperplane.
V. V. Liiko, A. B. Muravnik
doaj   +1 more source

Dispersive Properties of Schrödinger Equations [PDF]

open access: yes, 2005
This thesis mainly concerns the dispersive properties of Schrodinger equations with certain potentials, and some of their consequences. First, we consider the charge transfer models in Rn with n > 2. In this case, the potential is a sum of several
Cai, Kaihua
core   +1 more source

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