Results 51 to 60 of about 223 (102)

The second boundary value problem in a half-strip for a B-parabolic equation with the Gerasimov–Caputo time derivative [PDF]

open access: yesВестник КРАУНЦ. Физико-математические науки, 2020
В работе исследуется вторая краевая задача в полуполосе для параболического уравнения с оператором Бесселя, действующим по пространственной переменной, и частной производной Герасимова–Капуто по времени. Доказаны теоремы существования и единственности решения рассматриваемой задачи.
openaire   +1 more source

Ідентифікація параметрів однієї дробово-диференціальної моделі міграції розчинних речовин [PDF]

open access: yes, 2019
Розглядається задача ідентифікації параметрів моделі у випадку математичного моделювання дробово-диференціальної динаміки аномального процесу конвективної дифузії розчинних речовин при профільній усталеній фільтрації ґрунтових вод з вільною поверхнею ...
Богаєнко, В.А.   +2 more
core   +5 more sources

The existence of chaotic regimes of the fractional analogue of the Duffing-type oscillator

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019
In this paper, we study the chaotic regimes of the fractional Duffing oscillator. To do this, using the Wolf algorithm with Gram-Schmidt orthogonalization, we calculated the spectra of maximum Lyapunov exponents depending on the values of the control ...
Roman Ivanovich Parovik
doaj   +1 more source

Two classes of nonlocal Evolution Equations related by a shared Traveling Wave Problem

open access: yes, 2017
We consider reaction-diffusion equations and Korteweg-de Vries-Burgers (KdVB) equations, i.e. scalar conservation laws with diffusive-dispersive regularization.
A Chmaj   +34 more
core   +1 more source

Numerical solution using radial basis functions for multidimensional fractional partial differential equations of type Black-Scholes

open access: yes, 2020
The aim of this paper is to solve numerically, using the meshless method via radial basis functions, time-space-fractional partial differential equations of type Black-Scholes.
Brambila-Paz, F.   +2 more
core   +1 more source

Hille–Yosida-Type Theorem for Fractional Differential Equations with Dzhrbashyan–Nersesyan Derivative

open access: yesFractal and Fractional
It is a well-known fact that the Dzhrbashyan–Nersesyan fractional derivative includes as particular cases the fractional derivatives of Riemann–Liouville, Gerasimov–Caputo, and Hilfer.
Vladimir E. Fedorov   +4 more
doaj   +1 more source

Estimation of Radon Flux Density Changes in Temporal Vicinity of the Shipunskoe Earthquake with Mw = 7.0, 17 August 2024 with the Use of the Hereditary Mathematical Model

open access: yesGeosciences
Using the data of radon accumulation in a chamber with excess volume at one of the points of the Kamchatka subsurface gas-monitoring network, the change in radon flux density due to seismic waves and post-seismic relaxation of the medium is shown.
Dmitrii Tverdyi   +2 more
doaj   +1 more source

Time-Fractional Derivatives in Relaxation Processes: A Tutorial Survey [PDF]

open access: yes, 2007
2000 Mathematics Subject Classification: 26A33, 33E12, 33C60, 44A10, 45K05, 74D05,The aim of this tutorial survey is to revisit the basic theory of relaxation processes governed by linear differential equations of fractional order.
Gorenflo, Rudolf, Mainardi, Francesco
core   +1 more source

Fractional Newton-Raphson Method and Some Variants for the Solution of Non-linear Systems

open access: yes, 2020
The following document presents some novel numerical methods valid for one and several variables, which using the fractional derivative, allow to find solutions for some non-linear systems in the complex space using real initial conditions. The origin of
Brambila-Paz, F., Torres-Hernandez, A.
core   +1 more source

Caputo Derivatives in Viscoelasticity: A Non-Linear Finite-Deformation Theory for Tissue [PDF]

open access: yes, 2007
Mathematics Subject Classification: 26A33, 74B20, 74D10, 74L15The popular elastic law of Fung that describes the non-linear stress- strain behavior of soft biological tissues is extended into a viscoelastic material model that incorporates fractional ...
Diethelm, Kai, Freed, Alan
core  

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