11,145 research outputs found
A new truncated -fractional derivative type unifying some fractional derivative types with classical properties
We introduce a truncated -fractional derivative type for
-differentiable functions that generalizes four other fractional
derivatives types recently introduced by Khalil et al., Katugampola and Sousa
et al., the so-called conformable fractional derivative, alternative fractional
derivative, generalized alternative fractional derivative and -fractional
derivative, respectively. We denote this new differential operator by
, where the parameter , associated
with the order of the derivative is such that and is the notation to designate that the function to be derived involves the
truncated Mittag-Leffler function with one parameter.
The definition of this truncated -fractional derivative type satisfies the
properties of the integer-order calculus. We also present, the respective
fractional integral from which emerges, as a natural consequence, the result,
which can be interpreted as an inverse property. Finally, we obtain the
analytical solution of the -fractional heat equation and present a graphical
analysis.Comment: 16 pages, 3 figure
Extended Riemann-Liouville fractional derivative operator and its applications
Many authors have introduced and investigated certain extended fractional derivative operators. The main object of this paper is to give an extension of the Riemann-Liouville fractional derivative operator with the extended Beta function given by Srivastava et al. [22] and investigate its various (potentially) useful and (presumably) new properties and formulas, for example, integral representations, Mellin transforms, generating functions, and the extended fractional derivative formulas for some familiar functions
A fractional spline collocation method for the fractional order logistic equation
We construct a collocation method based on the fractional B-splines to solve a nonlinear differential problem that involves fractional derivative, i.e. the fractional order logistic equation. The use of the fractional B-splines allows us to express the fractional derivative of the approximating function in an analytic form. Thus, the fractional collocation method is easy to implement, accurate and efficient. Several numerical tests illustrate the efficiency of the proposed collocation method.We construct a collocation method based on the fractional B-splines to solve a nonlinear differential problem that involves fractional derivative, i.e. the fractional order logistic equation. The use of the fractional B-splines allows us to express the fractional derivative of the approximating function in an analytic form. Thus, the fractional collocation method is easy to implement, accurate and efficient. Several numerical tests illustrate the efficiency of the proposed collocation method
Distributed-order fractional Cauchy problems on bounded domains
In a fractional Cauchy problem, the usual first order time derivative is
replaced by a fractional derivative. The fractional derivative models time
delays in a diffusion process. The order of the fractional derivative can be
distributed over the unit interval, to model a mixture of delay sources. In
this paper, we provide explicit strong solutions and stochastic analogues for
distributed-order fractional Cauchy problems on bounded domains with Dirichlet
boundary conditions. Stochastic solutions are constructed using a non-Markovian
time change of a killed Markov process generated by a uniformly elliptic second
order space derivative operator.Comment: 29 page
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