Results 11 to 20 of about 146,548 (261)

A Novel Real-Time Filtering Method to General Nonlinear Filtering Problem Without Memory

open access: yesIEEE Access, 2021
In this paper, the filtering problem for the general time-invariant nonlinear state-observation system is considered. Our work is based on the Yau-Yau filtering framework developed by S.-T. Yau and the third author in 2008.
Ji Shi   +2 more
doaj   +1 more source

Inertial-Based Derivative-Free Method for System of Monotone Nonlinear Equations and Application

open access: yesIEEE Access, 2020
Iterative methods for solving nonlinear problems are of great importance due to their appearance in various areas of applications. In this paper, based on the inertial effect, we propose two projection derivative-free iterative methods for solving system
Aliyu Muhammed Awwal   +4 more
doaj   +1 more source

APPLICATION OF THE THEORY OF NEW INFORMATION OPERATORS IN CONDUCTING RESEARCH IN THE FIELD OF INFORMATION TECHNOLOGIES

open access: yesІнформаційні технології і засоби навчання, 2021
Due to the rapid development and implementation of the latest information technologies in many fields of science and technology significant changes have taken place.
Олеся Петрівна Нечуйвітер
doaj   +1 more source

Numerical Fractional Optimal Control of Respiratory Syncytial Virus Infection in Octave/MATLAB

open access: yesMathematics, 2023
In this article, we develop a simple mathematical GNU Octave/MATLAB code that is easy to modify for the simulation of mathematical models governed by fractional-order differential equations, and for the resolution of fractional-order optimal control ...
Silvério Rosa, Delfim F. M. Torres
doaj   +1 more source

Pontryagin’s Maximum Principle and Indirect Descent Method for Optimal Impulsive Control of Nonlocal Transport Equation

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2023
We study a singular problem of optimal control of a nonlocal transport equation in the space of probability measures, in which the structure of the drivng vector field with respect to the control variable is somewhat equivalent to the affine one, while ...
M. V. Staritsyn   +2 more
doaj   +1 more source

Comparative Performance Evaluation of an Accuracy-Enhancing Lyapunov Solver

open access: yesInformation, 2019
Lyapunov equations are key mathematical objects in systems theory, analysis and design of control systems, and in many applications, including balanced realization algorithms, procedures for reduced order models, Newton methods for algebraic Riccati ...
Vasile Sima
doaj   +1 more source

High-Order Schemes for Nonlinear Fractional Differential Equations

open access: yesFractal and Fractional, 2022
We propose high-order schemes for nonlinear fractional initial value problems. We split the fractional integral into a history term and a local term. We take advantage of the sum of exponentials (SOE) scheme in order to approximate the history term.
Omar Alsayyed   +3 more
doaj   +1 more source

Application of dm methods for problems with partial differential equations

open access: yesMathematical Modelling and Analysis, 2002
Two variants of applications of the Degenerate Matrix Method for solving problems with PDB are considered. Solutions of the simple testing problem and of one more complicated nonlinear problem with PDB of the fifth order are presented as examples.
T. Cirulis, O. Lietuvietis
doaj   +1 more source

A Faster and More Accurate Algorithm for Calculating Population Genetics Statistics Requiring Sums of Stirling Numbers of the First Kind

open access: yesG3: Genes, Genomes, Genetics, 2020
Ewen’s sampling formula is a foundational theoretical result that connects probability and number theory with molecular genetics and molecular evolution; it was the analytical result required for testing the neutral theory of evolution, and has since ...
Swaine L. Chen, Nico M. Temme
doaj   +1 more source

Investigation of Egyptian Banks’ Competition through a Riesz–Caputo Fractional Model

open access: yesFractal and Fractional, 2023
In this paper, a four-dimensional competition model, driven by the Riesz–Caputo operator, is established. Then, the presented model’s uniqueness, existence, and stability are discussed.
Othman A. M. Omar   +2 more
doaj   +1 more source

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