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Diffusive representations of fractional differential and integral operators can provide a convenient means to construct efficient numerical algorithms for their approximate evaluation. In the current literature, many different variants of…

数值分析 · 数学 2024-07-15 Kai Diethelm

In this paper we find fractional Riemann-Liouville derivatives for the Takagi-Landsberg functions. Moreover, we introduce their generalizations called weighted Takagi-Landsberg functions which have arbitrary bounded coefficients in the…

经典分析与常微分方程 · 数学 2020-03-31 Vitalii Makogin , Yuliya Mishura

The Riemann-Liouville formula for fractional derivatives and integrals (differintegration) is used to derive formulae for matrix order derivatives and integrals. That is, the parameter for integration and differentiation is allowed to…

数学物理 · 物理学 2007-05-23 Mark Naber

A theory of time and space with fractional dimensions (FD) of time and space ($d_{\alpha}, \alpha=t,{\bf r})$ defined on multifractal sets is proposed. The FD is determined (using principle of minimum the functionals of FD) by the energy…

空间物理 · 物理学 2007-05-23 Leonid Ya. Kobelev

In this paper, we address the one-parameter families of the fractional integrals and derivatives defined on a finite interval. First we remind the reader of the known fact that under some reasonable conditions, there exists precisely one…

经典分析与常微分方程 · 数学 2020-09-28 Yuri Luchko

In this paper, we introduce a new method for calculating fractional integrals and differentials. The method involves an equation that we have obtained from infinite applied integration by parts. The equation works for special class of…

综合数学 · 数学 2023-09-08 Oleg Yaremko , Andrey Yachmenev

We study operators that are generalizations of the classical Riemann-Liouville fractional integral, and of the Riemann-Liouville and Caputo fractional derivatives. A useful formula relating the generalized fractional derivatives is proved,…

经典分析与常微分方程 · 数学 2012-10-29 Tatiana Odzijewicz , Agnieszka B. Malinowska , Delfim F. M. Torres

Stieltjes integral theorem is more commonly known by the phrase 'integration by parts' and enables rearrangement of an otherwise intractable integral to a more amenable form; often permitting completion of an integral in closed form.…

数学物理 · 物理学 2015-03-19 Luisiana Xavier Cundin , Norman Barsalou

We prove multidimensional integration by parts formulas for generalized fractional derivatives and integrals. The new results allow us to obtain optimality conditions for multidimensional fractional variational problems with Lagrangians…

数学物理 · 物理学 2013-10-14 Tatiana Odzijewicz , Agnieszka B. Malinowska , Delfim F. M. Torres

Finite-part integration is a recently introduced method of evaluating convergent integrals by means of the finite part of divergent integrals [E.A. Galapon, {\it Proc. R. Soc. A 473, 20160567} (2017)]. Current application of the method…

经典分析与常微分方程 · 数学 2021-08-04 Lloyd Villanueva , Eric A. Galapon

Motivated by the ${\rm \Psi}$-Riemann-Liouville $({\rm \Psi-RL})$ fractional derivative and by the ${\rm \Psi}$-Hilfer $({\rm \Psi-H})$ fractional derivative, we introduced a new fractional operator the so-called $\rm\Psi-$fractional…

经典分析与常微分方程 · 数学 2018-11-06 J. Vanterler da C. Sousa , E. Capelas de Oliveira

In this paper, we aim to present new extensions of incomplete gamma, beta, Gauss hypergeometric, confluent hypergeometric function and Appell-Lauricella hypergeometric functions, by using the extended Bessel function due to Boudjelkha [4].…

经典分析与常微分方程 · 数学 2019-12-10 Abbas Hafida , Azzouz Abdelhalim , Zahaf Mohammed Brahim , Belmekki Mohamed

We study fractional variational problems in terms of a generalized fractional integral with Lagrangians depending on classical derivatives, generalized fractional integrals and derivatives. We obtain necessary optimality conditions for the…

最优化与控制 · 数学 2012-05-15 Tatiana Odzijewicz , Agnieszka B. Malinowska , Delfim F. M. Torres

Using both fractional derivatives, defined in the Riemann-Liouville and Caputo senses, and classical derivatives of the integer order we examine different numerical approaches to ordinary differential equations. Generally we formulate some…

数值分析 · 数学 2007-12-04 Jacek S. Leszczynski , Tomasz Blaszczyk

This paper presents the Euler-Lagrange equations for fractional variational problems with multiple integrals. The fractional Noether-type theorem for conservative and nonconservative generalized physical systems is proved. Our approach uses…

最优化与控制 · 数学 2012-10-09 Agnieszka B. Malinowska

Based on the Liouville-Weyl definition of the fractional derivative, a new direct fractional generalization of higher order derivatives is presented. It is shown, that the Riesz and Feller derivatives are special cases of this approach.

综合数学 · 数学 2009-06-12 Richard Herrmann

We study the fractional gravity for spacetimes with non-integer dimensions. Our constructions are based on a geometric formalism with the fractional Caputo derivative and integral calculus adapted to nonolonomic distributions. This allows…

数学物理 · 物理学 2012-04-20 Sergiu I. Vacaru

A fractional power interpretation of the Laguerre derivative $(DxD)^\alpha,\ D\equiv {d\over dx} $ is discussed. The corresponding fractional integrals are introduced. Mapping and semigroup properties, integral representations and Mellin…

经典分析与常微分方程 · 数学 2020-07-13 Semyon Yakubovich

Two approximations, derived from continuous expansions of Riemann-Liouville fractional derivatives into series involving integer order derivatives, are studied. Using those series, one can formally transform any problem that contains…

最优化与控制 · 数学 2013-05-10 Shakoor Pooseh , Ricardo Almeida , Delfim F. M. Torres

Fractional calculus has been used to describe physical systems with complexity. Here, we show that a fractional calculus approach can restore or include complexity in any physical systems that can be described by partial differential…

介观与纳米尺度物理 · 物理学 2024-08-06 Kyle Rockwell , Ezio Iacocca