Results 51 to 60 of about 1,368 (203)

ON FINDING THE COEFFICIENTS OF DERIVATIVE IN THE STRING VIBRATION EQUAION WHICH HAS DISCONTINUITY

open access: yesМіжнародний науково-технічний журнал "Проблеми керування та інформатики"
It is studied the problem of finding the coefficient of first order derivative in the string vibration equation. Considering problem is reduced to the optimal control problem.
Сафарова Сафарова
doaj   +1 more source

Convergence Analysis and Dynamical Nature of an Efficient Iterative Method in Banach Spaces

open access: yesMathematics, 2021
We study the local convergence analysis of a fifth order method and its multi-step version in Banach spaces. The hypotheses used are based on the first Fréchet-derivative only. The new approach provides a computable radius of convergence, error bounds on
Deepak Kumar   +3 more
doaj   +1 more source

Linear Toroidal‐Inertial Waves on A Differentially Rotating Sphere with Application to Helioseismology: Modeling, Forward and Inverse Problems

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper develops a mathematical framework for interpreting observations of solar inertial waves in an idealized setting. Under the assumption of purely toroidal linear waves on the sphere, the stream function of the flow satisfies a fourth‐order scalar equation.
Tram Thi Ngoc Nguyen   +3 more
wiley   +1 more source

Stochastic integrals and Gelfand integration in Fréchet spaces [PDF]

open access: yes, 2022
We provide a detailed analysis of the Gelfand integral on Fréchet spaces, showing among other things a Vitali theorem, dominated convergence and a Fubini result. Furthermore, the Gelfand integral commutes with linear operators.
Benth, Fred Espen, Galimberti, Luca
core   +1 more source

An approximate Taylor method for Stochastic Functional Differential Equations via polynomial condition

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
The subject of this paper is an analytic approximate method for a class of stochastic functional differential equations with coefficients that do not necessarily satisfy the Lipschitz condition nor linear growth condition but they satisfy some polynomial
Djordjević Dušan D.   +1 more
doaj   +1 more source

Classical Continuous Constraint Boundary Optimal Control Vector Problem for Triple Nonlinear Parabolic System

open access: yesAl-Mustansiriyah Journal of Science, 2023
In this paper, our purpose is to study the classical continuous constraints boundary optimal triple control vector problem dominating nonlinear triple parabolic boundary value problem.
Yasameen H. Rashid   +2 more
doaj   +1 more source

Fractional Moment Theory for Anomalous Transport: A Unified Framework for Lévy Flights, Fractals, and Complex Dynamical Systems

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We develop a unified mathematical framework extending classical moment theory from discrete integer orders to a continuous spectrum of real orders f>0$$ f>0 $$, providing a systematic statistical characterization of complex systems exhibiting power‐law behavior.
Farrukh A. Chishtie
wiley   +1 more source

Mysovskii-type theorem for the Secant method under Hölder continuous Fréchet derivative

open access: yes, 2006
The Mysovskii-type condition is considered in this study for the Secant method in Banach spaces to solve a nonlinear operator equation. We suppose the inverse of divided difference of order one is bounded and the Fréchet derivative of the nonlinear ...
Hongmin Ren   +3 more
core   +1 more source

FRÉCHET-MARINESCU’S DERIVATIVE IN THE MATHEMATICAL MODELING OF DYNAMIC SYSTEMS [PDF]

open access: yesFiabilitate şi Durabilitate, 2013
The paper presents an application of the functional analysis, especially of differentialcalculus in linear topological locally convex spaces leading to formulae representing the evolution ofstates in dynamical systems with infinite fading ...
Eufrosina OTLACAN
doaj  

Local Convergence Analysis of an Efficient Fourth Order Weighted-Newton Method under Weak Conditions

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2018
Local convergence analysis of a fourth order method considered by Sharma et. al in [19] for solving systems of nonlinear equations. Using conditions on derivatives upto the order five, they proved that the method is of order four.
Argyros Ioannis K., George Santhosh
doaj   +1 more source

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