Results 1 to 10 of about 210,092 (219)

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   +5 more sources

Hybrid expansion methods for fractional non-linear mathematical systems with Erdelyi-Kober derivative operators in theory of tsunami wave modeling [PDF]

open access: yesScientific Reports
This work develops two hybrid semi-analytical methods, namely the expansion new iterative method (ENIM) and the expansion homotopy perturbation method (EHPM), for solving the fractional Whitham-Broer-Kaup equations (WBKEs) involving the Erdélyi-Kober (EK)
Faten H. Damag   +5 more
doaj   +2 more sources

A novel intuitionistic fuzzy Yager aggregation framework for decision making in green supply chains [PDF]

open access: yesScientific Reports
Aggregation operators constitute the core mathematical mechanism of multi-criteria decision-making by integrating multiple attribute evaluations into a single representative assessment.
Yeshvandhini Kumar   +2 more
doaj   +2 more sources

Quantitative approximation by nonlinear Angheluta-Choquet singular integrals

open access: yesJournal of Numerical Analysis and Approximation Theory, 2020
By using the concept of nonlinear Choquet integral with respect to a capacity and as a generalization of the Poisson-Cauchy-Choquet operators, we introduce the nonlinear Angheluta-Choquet singular integrals with respect to a family of submodular set ...
Sorin Gal, Ionut Iancu
doaj   +7 more sources

The regularity properties and blow-up of the solutions for improved Boussinesq equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
In this paper, we study the Cauchy problem for linear and nonlinear Boussinesq type equations that include the general differential operators. First, by virtue of the Fourier multipliers, embedding theorems in Sobolev and Besov spaces, the existence ...
Veli Shakhmurov, Rishad Shahmurov
doaj   +1 more source

A singular fractional Kelvin–Voigt model involving a nonlinear operator and their convergence properties [PDF]

open access: yesBoundary Value Problems, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jianxin He   +4 more
openaire   +3 more sources

Approximate Diagonal Integral Representations and Eigenmeasures for Lipschitz Operators on Banach Spaces

open access: yesMathematics, 2022
A new stochastic approach for the approximation of (nonlinear) Lipschitz operators in normed spaces by their eigenvectors is shown. Different ways of providing integral representations for these approximations are proposed, depending on the properties of
Ezgi Erdoğan   +1 more
doaj   +1 more source

A single trapped ion in a finite range trap [PDF]

open access: yes, 2005
This paper presents a method to describe dynamics of an ion confined in a realistic finite range trap. We model this realistic potential with a solvable one and we obtain dynamical variables (raising and lowering operators) of this potential. We consider
Cargnelutti, Bruno   +5 more
core   +5 more sources

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

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

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