Results 31 to 40 of about 74,438 (274)

Existence of a Unique Weak Solution to a Nonlinear Non-Autonomous Time-Fractional Wave Equation (of Distributed-Order)

open access: yesMathematics, 2020
We study an initial-boundary value problem for a fractional wave equation of time distributed-order with a nonlinear source term. The coefficients of the second order differential operator are dependent on the spatial and time variables.
Karel Van Bockstal
doaj   +1 more source

Analysis of a Hidden-Memory Variably Distributed-Order Time-Fractional Diffusion Equation

open access: yesFractal and Fractional, 2022
We analyze the well-posedness and regularity of a variably distributed-order time-fractional diffusion equation (tFDE) with a hidden-memory fractional derivative, which provide a competitive means to describe the anomalously diffusive transport of ...
Jinhong Jia
doaj   +1 more source

p-Moment Mittag–Leffler Stability of Riemann–Liouville Fractional Differential Equations with Random Impulses

open access: yesMathematics, 2020
Fractional differential equations with impulses arise in modeling real world phenomena where the state changes instantaneously at some moments. Often, these instantaneous changes occur at random moments.
Ravi Agarwal   +3 more
doaj   +1 more source

Space-time fractional reaction-diffusion equations associated with a generalized Riemann-Liouville fractional derivative [PDF]

open access: yes, 2014
This paper deals with the investigation of the computational solutions of an unified fractional reaction-diffusion equation, which is obtained from the standard diffusion equation by replacing the time derivative of first order by the generalized Riemann-
Haubold, H. J.   +2 more
core   +3 more sources

Modeling and Initialization of Nonlinear and Chaotic Fractional Order Systems Based on the Infinite State Representation

open access: yesFractal and Fractional, 2023
Based on the infinite state representation, any linear or nonlinear fractional order differential system can be modelized by a finite-dimension set of integer order differential equations.
Jean-Claude Trigeassou, Nezha Maamri
doaj   +1 more source

Error Estimates for Approximations of Distributed Order Time Fractional Diffusion with Nonsmooth Data [PDF]

open access: yes, 2015
In this work, we consider the numerical solution of an initial boundary value problem for the distributed order time fractional diffusion equation. The model arises in the mathematical modeling of ultra-slow diffusion processes observed in some physical ...
Jin, Bangti   +3 more
core   +2 more sources

Fractional diffusion equation with the distributed order Caputo derivative

open access: yes, 2017
We consider fractional diffusion equation with the distributed order Caputo derivative. We prove existence of a weak and regular solution for general uniformly elliptic operator under the assumption that the weight function is only integrable.
Kubica, Adam, Ryszewska, Katarzyna
openaire   +2 more sources

MHD blood flow effects of Casson fluid with Caputo-Fabrizio fractional derivatives through an inclined blood vessels with thermal radiation

open access: yesHeliyon, 2023
This study investigates a fractional-order time derivative model of non-Newtonian magnetic blood flow in the presence of thermal radiation and body acceleration through an inclined artery.
Dzuliana Fatin Jamil   +5 more
doaj   +1 more source

NEW OPERATIONAL MATRIX OF RIEMANN-LIOUVILLE FRACTIONAL DERIVATIVE OF ORTHONORMAL BERNOULLI POLYNOMIALS FOR THE NUMERICAL SOLUTION OF SOME DISTRIBUTED-ORDER TIME-FRACTIONAL PARTIAL DIFFERENTIAL EQUATIONS

open access: yesJournal of Applied Analysis & Computation, 2023
Summary: In this article, the orthonormal Bernoulli polynomials (OBPs) and their properties are applied for concluding a general technique for forming a new operational matrix of the distributed-order (DO) fractional derivative. Then, we apply tau approach and obtained operational matrix to solve some DO time-fractional partial differential equations ...
Pourbabaee, M., Saadatmandi, A.
openaire   +2 more sources

Existence and Globally Asymptotic Stability of Equilibrium Solution for Fractional-Order Hybrid BAM Neural Networks with Distributed Delays and Impulses

open access: yesComplexity, 2017
This paper investigates the existence and globally asymptotic stability of equilibrium solution for Riemann-Liouville fractional-order hybrid BAM neural networks with distributed delays and impulses.
Hai Zhang   +3 more
doaj   +1 more source

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