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Fractional operators are widely used in mathematical models describing abnormal and nonlocal phenomena. Although there are extensive numerical methods for solving the corresponding model problems, theoretical analysis such as the regularity…

数值分析 · 数学 2020-06-30 Lijing Zhao , Weihua Deng , Jan S Hesthaven

A Daniell-Stone type characterization theorem for Aumann integrals of set-valued measurable functions will be proven. It is assumed that the values of these functions are closed convex upper sets, a structure that has been used in some…

泛函分析 · 数学 2017-01-27 Çağın Ararat , Birgit Rudloff

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

In this paper, we study problems of minimization of a functional depending on the fractional Caputo derivative of order $0<\alpha \leq 1$ and the fractional Riemann- Liouville integral of order $\beta > 0$ at fixed endpoints. A fractional…

最优化与控制 · 数学 2025-06-11 Shakir Sh. Yusubov , Shikhi Sh. Yusubov , Elimhan N. Mahmudov

We introduce the concept of fractional derivative of Riemann-Liouville on time scales. Fundamental properties of the new operator are proved, as well as an existence and uniqueness result for a fractional initial value problem on an…

经典分析与常微分方程 · 数学 2015-12-24 Nadia Benkhettou , Ahmed Hammoudi , Delfim F. M. Torres

The most general change of variables theorem for the Riemann integral of functions of a single variable has been published in 1961 (by Kestelman). In this theorem, the substitution is made by an `indefinite integral', that is, by a function…

经典分析与常微分方程 · 数学 2008-04-16 Zoltán Molnár , Ilona Nagy , Tivadar Szilágyi

We apply both the theory of boundary triples and perturbation theory to the setting of semi-bounded Sturm-Liouville operators with two limit-circle endpoints. For general boundary conditions we obtain refined and new results about their…

谱理论 · 数学 2023-06-16 Dale Frymark , Constanze Liaw

Summary]{In this paper, we study problems of minimization of a functional depending on the fractional Caputo derivative of order $0<\alpha \leq 1$ and the fractional Riemann- Liouville integral of order $\beta > 0$ at fixed endpoints. A…

最优化与控制 · 数学 2025-06-17 Shakir Sh. Yusubov , Shikhi Sh. Yusubov , Elimhan N. Mahmudov

This paper combines probability theory and fractional calculus to derive a novel integral representation of the three-parameter Mittag-Leffler function or Prabhakar function, where the three parameters are combinations of four base…

概率论 · 数学 2023-04-21 Nomvelo Karabo Sibisi

We establish a new natural extension of Mittag-Leffler function with three variables which is so called "trivariate Mittag-Leffler function". The trivariate Mittag-Leffler function can be expressed via complex integral representation by…

经典分析与常微分方程 · 数学 2020-11-10 Ismail T. Huseynov , Arzu Ahmadovay , Gbenga O. Ojo , Nazim I. Mahmudov

This paper builds on the notion of the so-called orthogonal derivative, where an n-th order derivative is approximated by an integral involving an orthogonal polynomial of degree n. This notion was reviewed in great detail in a paper in J.…

经典分析与常微分方程 · 数学 2014-07-08 E. Diekema

The paper surveys the basic properties of generalized Stieltjes functions including some new ones. We introduce the notion of the exact Stieltjes order and give a criterion of exactness, simple sufficient conditions and some prototypical…

经典分析与常微分方程 · 数学 2012-02-14 Dmitry Karp , Elena Prilepkina

Product-to-sum identities for trigonometric functions play a fundamental role in function theory and numerous applications. In this spirit, we present convolution-to-sum identities for Mittag-Leffler type functions. Using a Laplace domain…

偏微分方程分析 · 数学 2026-05-05 William Cvetko , Elena Cherkaev

In this paper, some Ostrowski type inequalities via Riemann-Liouville fractional integrals for h-convex functions, which are super-multiplicative or super-additive, are given. These results not only generalize those of Set (2012) and Tunc…

泛函分析 · 数学 2012-11-21 Wenjun Liu

We consider a Sturm-Liouville operator on a finite interval as well as a scattering problem on the real line both with transfer conditions at the origin. On a finite interval we show that the the Titchmarsh-Weyl $m$-function can be uniquely…

谱理论 · 数学 2018-04-20 Sonja Currie , Marlena Nowaczyk , Bruce A. Watson

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

We define the domain of a linear fractional transformation in a space of operators and show that both the affine automorphisms and the compositions of symmetries act transitively on these domains. Further, we show that Liouville's theorem…

复变函数 · 数学 2009-09-25 Lawrence A. Harris

We systematically develop Weyl-Titchmarsh theory for singular differential operators on arbitrary intervals $(a,b) \subseteq \mathbb{R}$ associated with rather general differential expressions of the type \[ \tau f = \frac{1}{r} (-…

谱理论 · 数学 2013-04-30 Jonathan Eckhardt , Fritz Gesztesy , Roger Nichols , Gerald Teschl

The paper presents a new formula for the fractional integration, which generalizes the Riemann-Liouville and Hadamard fractional integrals into a single form, which when a parameter fixed at different values, produces the above integrals as…

经典分析与常微分方程 · 数学 2014-10-23 Udita N. Katugampola

In [1], an operator was introduced which acts parallel to the Riemann-Liouville differintegral on a transformation of the space of real analytic functions and commutes with itself. This paper aims to extend the technique - and its defining…

经典分析与常微分方程 · 数学 2012-07-31 Matthew Parker