Results 61 to 70 of about 194 (101)

Controlo ótimo fracionário e aplicações biológicas [PDF]

open access: yes, 2022
In this PhD thesis, we derive a Pontryagin Maximum Principle (PMP) for fractional optimal control problems and analyze a fractional mathematical model of COVID– 19 transmission dynamics.
Ndaïrou, Faïçal
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On a Ssystem of Coupled Linear Oscillators with Fractional Friction and Non-Constant Coefficients for Describing Geoacoustic Emission

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki
The paper proposes a generalization of the previously obtained mathematical model of geoacoustic emission, according to which the model takes into account the effects of heredity in dissipative terms.
Sergienko, D.F., Parovik, R.I.
doaj   +1 more source

Inverse problem for fractional order subdiffusion equation

open access: yes, 2023
The study examines the inverse problem of finding the appropriate right-hand side for the subdiffusion equation with the Caputo fractional derivative in a Hilbert space represented by $H$.
Shakarova, Marjona
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Математическая модель дробного осциллятора Ван дер Поля-Эйри

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki
В работе предложена математическая модель нелинейного осциллятора Ван дер Поля-Эйри с учетом наследственности. Нелинейность осциллятора обусловлена наличием зависимости коэффициента трения от квадрата функции смещения, что характерно для осциллятора Ван ...
Салимова, А.И.   +1 more
doaj   +1 more source

Математическая дробная модель Зимана для описания сердечных сокращений

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki
В статье предлагается принципиально новое обобщение ранее известной математической модели Зимана сердечных сокращений за счет электрохимического воздействия.
Исрайилжанова, Г.C.   +2 more
doaj   +1 more source

Principles of fractional signal processing [PDF]

open access: yes
Publisher Copyright: © 2024 The Author(s)A general framework for fractional signal processing is described and used to derive several interesting formulations. This scheme is based on the Liouville approach that gave rise to the classic Riemann-Liouville
Ortigueira, Manuel D.
core   +1 more source

Exponential Integrator Methods for Nonlinear Fractional Reaction-diffusion Models [PDF]

open access: yes, 2017
Nonlocality and spatial heterogeneity of many practical systems have made fractional differential equations very useful tools in Science and Engineering. However, solving these type of models is computationally demanding.
Iyiola, Olaniyi Samuel
core   +1 more source

О сходимости разностной схемы высокого порядка аппроксимации для модифицированного уравнения влагопереноса дробного порядка [PDF]

open access: yes
Исследована первая краевая задача для модифицированного уравнения влагопереноса с двумя операторами дробного дифференцирования Герасимова-Капуто разных порядков , . Построена разностная схема повышенного порядка точности на равномерной сетке.
Бештоков, М.Х.
core   +1 more source

Inverse problem for determining the order of fractional derivative in mixed-type equations

open access: yes
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 ...
Ashurov, R. R., Zunnunov, R. T.
core  

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