Results 21 to 30 of about 13,021 (91)

Inverse Problem for Determining the Order of the Fractional Derivative in Mixed-Type Equations [PDF]

open access: yesLobachevskii Journal of Mathematics, 2021
In this paper the inverse problem of determining the fractional orders in mixed-type equations is considered. In one part of the domain, the considered equation is the subdiffusion equation with a fractional derivative in the sense of Gerasimov–Caputo of
R. Ashurov, R. Zunnunov
semanticscholar   +1 more source

An analogue of the Lyapunov inequality for an ordinary second-order differential equation with a fractional derivative and a variable coefficient

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
This paper studies an ordinary second-order differential equation with a fractional differentiation operator in the sense of Riemann-Liouville with a variable coefficient.
B.I. Efendiev
doaj   +1 more source

Integrated Resolving Functions for Equations with Gerasimov-Caputo Derivatives

open access: yesSymmetry, 2023
The concept of a β-integrated resolving function for a linear equation with a Gerasimov–Caputo fractional derivative is introduced into consideration. A number of properties of such functions are proved, and conditions for the solvability of the Cauchy ...
V. Fedorov, A. Skorynin, A. Debbouche
semanticscholar   +1 more source

Quasilinear Fractional Order Equations and Fractional Powers of Sectorial Operators

open access: yesFractal and Fractional, 2023
The fractional powers of generators for analytic operator semigroups are used for the proof of the existence and uniqueness of a solution of the Cauchy problem to a first order semilinear equation in a Banach space. Here, we use an analogous construction
Vladimir E. Fedorov   +2 more
doaj   +1 more source

Ordinary Differential Equation with Left and Right Fractional Derivatives and Modeling of Oscillatory Systems

open access: yesMathematics, 2020
We consider the principle of least action in the context of fractional calculus. Namely, we derive the fractional Euler–Lagrange equation and the general equation of motion with the composition of the left and right fractional derivatives defined on ...
Liana Eneeva   +2 more
doaj   +1 more source

Нелокальная краевая задача для уравнения с производными дробного порядка с различными началами

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2023
Рассматривается линейное обыкновенное дифференциальное уравнение дробного порядка с композицией лево- и правосторонних операторов дробных производных в главной части.
Энеева, Л.М.
doaj   +1 more source

Recent applications of fractional calculus to science and engineering

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 54, Page 3413-3442, 2003., 2003
This paper deals with recent applications of fractional calculus to dynamical systems in control theory, electrical circuits with fractance, generalized voltage divider, viscoelasticity, fractional‐order multipoles in electromagnetism, electrochemistry, tracer in fluid flows, and model of neurons in biology.
Lokenath Debnath
wiley   +1 more source

A Class of Fractional Degenerate Evolution Equations with Delay

open access: yesMathematics, 2020
We establish a class of degenerate fractional differential equations involving delay arguments in Banach spaces. The system endowed by a given background and the generalized Showalter–Sidorov conditions which are natural for degenerate type equations. We
Amar Debbouche, Vladimir E. Fedorov
doaj   +1 more source

Дробно-дифференциальная модель физических процессов с насыщением и ее применение к описанию динамики COVID-19

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2022
В этой статье была использована дробно-дифференциальная модель физических процессов с насыщением для описания динамики летальных исходов инфекции COVID-19.
Твёрдый, Д.А.   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy