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The theory of fractional calculus in the complex plane was not built with a specific application in mind. The main obstacle to application was the difficulty with obtaining analytic continuations of fractional derivatives and integrals. It…

Classical Analysis and ODEs · Mathematics 2015-10-01 V. P. Gurarii

In this paper, we delve into the fascinating realm of fractal calculus applied to fractal sets and fractal curves. Our study includes an exploration of the method analogues of the separable method and the integrating factor technique for…

General Mathematics · Mathematics 2023-10-26 Alireza Khalili Golmankhaneh , Donatella Bongiorno

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…

Classical Analysis and ODEs · Mathematics 2021-06-17 Roberto Garrappa , Andrea Giusti , Francesco Mainardi

One of the motivations for using fractional calculus in physical systems is due to fact that many times, in the space and time variables we are dealing which exhibit coarse-grained phenomena, meaning that infinitesimal quantities cannot be…

General Physics · Physics 2018-10-31 Joydip Banerjee , Uttam Ghosh , Susmita Sarkar , Shantanu Das

Fractional dynamics is a field of study in physics and mechanics investigating the behavior of objects and systems that are characterized by power-law non-locality, power-law long-term memory or fractal properties by using integrations and…

General Physics · Physics 2015-03-12 Vasily E. Tarasov

Fractional diffusion and Fokker-Planck equations are widely used tools to describe anomalous diffusion in a large variety of complex systems. The equivalent formulations in terms of Caputo or Riemann-Liouville fractional derivatives can be…

Statistical Mechanics · Physics 2023-08-17 Qing Wei , Wei Wang , Hongwei Zhou , Ralf Metzler , Aleksei Chechkin

While the definition of a fractional integral may be codified by Riemann and Liouville, an agreed-upon fractional derivative has eluded discovery for many years. This is likely a result of integral definitions including numerous constants…

Classical Analysis and ODEs · Mathematics 2018-10-10 Evan Camrud

Many physical, biological, and engineered systems exhibit memory effects that challenge Markovian models. Fractional calculus provides nonlocal operators to capture hereditary dynamics. This survey connects modeling, analysis, and…

Optimization and Control · Mathematics 2025-12-16 Navid Mojahed , Hooman Fatoorehchi , Shima Nazari

This paper, that will appear in the Notices of the AMS, begins with a brief historical account of the beginnings of fractional calculus and the crucial roles played by Leibniz and Fourier. Fourier's definition of fractional derivative is…

Analysis of PDEs · Mathematics 2022-12-06 P. R. Stinga

We consider dynamical systems that are described by fractional power of coordinates and momenta. The fractional powers can be considered as a convenient way to describe systems in the fractional dimension space. For the usual space the…

Statistical Mechanics · Physics 2009-11-11 Vasily E. Tarasov

The theory of derivative of noninteger order goes back to Leibniz, Liouville and Riemann. Derivatives of fractional order have found many applications in recent studies in mechanics, physics, economics. In this paper we define the…

Differential Geometry · Mathematics 2007-09-18 Gheorghe Ivan , Mihai Ivan , Dumitru Opris

We give a proper fractional extension of the classical calculus of variations by considering variational functionals with a Lagrangian depending on a combined Caputo fractional derivative and the classical derivative. Euler-Lagrange…

Optimization and Control · Mathematics 2011-11-11 Tatiana Odzijewicz , Agnieszka B. Malinowska , Delfim F. M. Torres

In this work, we consider a generalization of the nonlinear Langevin equation of fractional orders with boundary value conditions. The existence and uniqueness of solutions are studied by using results of the fixed point theory. Moreover,…

Analysis of PDEs · Mathematics 2020-04-08 Saeed Kosari , Milad Yadollahzadeh , Zehui Shao , Yongsheng Rao

We review some applications of fractional calculus developed by the author (partly in collaboration with others) to treat some basic problems in continuum and statistical mechanics. The problems in continuum mechanics concern mathematical…

Statistical Mechanics · Physics 2012-01-05 Francesco Mainardi

In this article we study the basic theoretical properties of Mellin-type fractional integrals, known as generalizations of the Hadamard-type fractional integrals. We give a new approach and version, specifying their semigroup property,…

Functional Analysis · Mathematics 2016-11-25 Paul Leo Butzer , Carlo Bardaro , Ilaria Mantellini

The Liouville and first Bogoliubov hierarchy equations with derivatives of noninteger order are derived. The fractional Liouville equation is obtained from the conservation of probability to find a system in a fractional volume element.…

Statistical Mechanics · Physics 2015-03-12 Vasily E. Tarasov

We introduce a notion of fractional (noninteger order) derivative on an arbitrary nonempty closed subset of the real numbers (on a time scale). Main properties of the new operator are proved and several illustrative examples given.

Classical Analysis and ODEs · Mathematics 2016-09-06 Benaoumeur Bayour , Delfim F. M. Torres

The basic concepts of exterior calculus for space-time multivectors are presented: interior and exterior products, interior and exterior derivatives, oriented integrals over hypersurfaces, circulation and flux of multivector fields. Two…

Mathematical Physics · Physics 2020-03-02 Ivano Colombaro , Josep Font-Segura , Alfonso Martinez

We consider fractional differential equations of order $\alpha \in (0,1)$ for functions of one independent variable $t\in (0,\infty)$ with the Riemann-Liouville and Caputo-Dzhrbashyan fractional derivatives. A precise estimate for the order…

Classical Analysis and ODEs · Mathematics 2008-11-22 Anatoly N. Kochubei

In this paper approximations of three classes of fractional derivatives (FD) using modified Gauss integration (MGI) and Gauss-Laguerre integration (GLI) are considered. The main solutions of these fractional derivatives depend on inverse of…

Numerical Analysis · Mathematics 2015-03-14 H. Fallahgoul , S. M. Hashemiparast
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