Results 21 to 30 of about 388,923 (185)

A fractional model of cancer-immune system with Caputo and Caputo–Fabrizio derivatives [PDF]

open access: yesThe European Physical Journal Plus, 2021
Recently, it is important to try to understand diseases with large mortality rates worldwide, such as infectious disease and cancer. For this reason, mathematical modeling can be used to comment on diseases that adversely affect all people. So, this paper discuss mathematical model presented for the first time that examines the interaction between ...
Uçar, Esmehan, Özdemir, Necati
openaire   +4 more sources

On Riemann‐Liouville and Caputo Derivatives [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2011
Recently, many models are formulated in terms of fractional derivatives, such as in control processing, viscoelasticity, signal processing, and anomalous diffusion. In the present paper, we further study the important properties of the Riemann‐Liouville (RL) derivative, one of mostly used fractional derivatives.
Changpin Li, Deliang Qian, YangQuan Chen
openaire   +3 more sources

Properties of the Caputo-Fabrizio Fractional Derivative [PDF]

open access: yes, 2020
In this paper, we investigate some properties related Caputo-Fabrizio (CF) fractional derivative. We prove some regularity properties and bounds characterizing the Caputo-Fabrizio derivative operator.
D. Lau-Alfonso, L.   +3 more
core   +1 more source

On Caputo Fractional Derivatives via Convexity [PDF]

open access: yesKragujevac Journal of Mathematics, 2020
Summary: In this paper some estimations of Caputo fractional derivatives via convexity have been presented. By using convexity of any positive integer order differentiable function some novel results are given.
openaire   +2 more sources

A Note on Caputo’s Derivative Operator Interpretation in Economy [PDF]

open access: yesJournal of Applied Mathematics, 2018
We propound the economic idea in terms of fractional derivatives, which involves the modified Caputo’s fractional derivative operator. The suggested economic interpretation is based on a generalization of average count and marginal value of economic indicators.
Hameed Ur Rehman   +2 more
openaire   +4 more sources

Fractional hamilton formalism within caputo’s derivative [PDF]

open access: yesCzechoslovak Journal of Physics, 2006
In this paper we develop a fractional Hamiltonian formulation for dynamic systems defined in terms of fractional Caputo derivatives. Expressions for fractional canonical momenta and fractional canonical Hamiltonian are given, and a set of fractional Hamiltonian equations are obtained.
Baleanu, Dumitru, Agrawal, Om. P.
openaire   +2 more sources

Fractional variational problems depending on indefinite integrals [PDF]

open access: yes, 2012
We obtain necessary optimality conditions for variational problems with a Lagrangian depending on a Caputo fractional derivative, a fractional and an indefinite integral.
Pooseh, Shakoor   +8 more
core   +1 more source

Computational analysis of time-fractional models in energy infrastructure applications

open access: yesAlexandria Engineering Journal, 2023
In this paper, we propose an effective numerical method to solve the one- and two-dimensional time-fractional convection-diffusion equations based on the Caputo derivative.
Imtiaz Ahmad   +5 more
doaj   +1 more source

Caputo Fractional Derivative and Quantum-Like Coherence [PDF]

open access: yesEntropy, 2021
We study two forms of anomalous diffusion, one equivalent to replacing the ordinary time derivative of the standard diffusion equation with the Caputo fractional derivative, and the other equivalent to replacing the time independent diffusion coefficient of the standard diffusion equation with a monotonic time dependence.
Garland Culbreth   +3 more
openaire   +5 more sources

A new Definition of Fractional Derivative and Fractional Integral [PDF]

open access: yesKirkuk Journal of Science, 2018
In this paper, we introduce three different definitions of fractional derivatives, namely Riemann-Liouville derivative, Caputo derivative and the new formula Caputo expansion formula, and some basics properties of these derivatives are discussed.
Ahmed M. Kareem
doaj   +1 more source

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