Results 1 to 10 of about 242 (60)

General Fractional Integrals and Derivatives with the Sonine Kernels

open access: yesMathematics, 2021
In this paper, we address the general fractional integrals and derivatives with the Sonine kernels on the spaces of functions with an integrable singularity at the point zero.
Yuri Luchko
doaj   +4 more sources

Stability of Delay Hopfield Neural Networks with Generalized Riemann-Liouville Type Fractional Derivative. [PDF]

open access: yesEntropy (Basel), 2023
The general delay Hopfield neural network is studied. We consider the case of time-varying delay, continuously distributed delays, time-varying coefficients, and a special type of a Riemann–Liouville fractional derivative (GRLFD) with an exponential ...
Agarwal RP, Hristova S.
europepmc   +2 more sources

On generalized fractional differential equation with Sonine kernel on a function space

open access: yesPartial Differential Equations in Applied Mathematics
Sonine kernel is a special type of the general kernels, satisfying some integrability and monotonicity conditions and properties. Sonine kernels generate some convolution polynomials (power functions) used in the construction of the general fractional ...
McSylvester Ejighikeme Omaba
doaj   +2 more sources

A Rigorous Analysis of Integro-Differential Operators with Non-Singular Kernels

open access: yesFractal and Fractional, 2023
Integro-differential operators with non-singular kernels have been much discussed among fractional calculus researchers. We present a mathematical study to clearly establish the rigorous foundations of this topic.
Arran Fernandez, Mohammed Al-Refai
doaj   +1 more source

Nonexistence of Finite-Time Stable Equilibria in a Class of Nonlinear Integral Equations

open access: yesFractal and Fractional, 2023
This brief report studies conditions to ensure the nonexistence of finite-time stable equilibria in a class of systems that are described by means of nonlinear integral equations, whose kernels are part of some Sonine kernel pairs.
Aldo Jonathan Muñoz-Vázquez   +2 more
doaj   +1 more source

Special Functions of Fractional Calculus in the Form of Convolution Series and Their Applications

open access: yesMathematics, 2021
In this paper, we first discuss the convolution series that are generated by Sonine kernels from a class of functions continuous on a real positive semi-axis that have an integrable singularity of power function type at point zero.
Yuri Luchko
doaj   +1 more source

The General Fractional Derivative and Related Fractional Differential Equations

open access: yesMathematics, 2020
In this survey paper, we start with a discussion of the general fractional derivative (GFD) introduced by A. Kochubei in his recent publications. In particular, a connection of this derivative to the corresponding fractional integral and the Sonine ...
Yuri Luchko, Masahiro Yamamoto
doaj   +1 more source

Inversion of the Dual Dunkl-Sonine Transform on R Using Dunkl Wavelets [PDF]

open access: yes, 2009
We prove a Calder\'on reproducing formula for the Dunkl continuous wavelet transform on $\mathbb{R}$.
Mourou, Mohamed Ali
core   +5 more sources

Variable-order fractional calculus: A change of perspective [PDF]

open access: yes, 2021
Several approaches to the formulation of a fractional theory of calculus of “variable order” have appeared in the literature over the years. Unfortunately, most of these proposals lack a rigorous mathematical framework. We consider an alternative view on
Garrappa R., Giusti A., Mainardi F.
core   +1 more source

Trends, directions for further research, and some open problems of fractional calculus [PDF]

open access: yes, 2021
The area of fractional calculus (FC) has been fast developing and is presently being applied in all scientific fields. Therefore, it is of key relevance to assess the present state of development and to foresee, if possible, the future evolution, or, at ...
Diethelm, Kai   +4 more
core   +3 more sources

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