中文
相关论文

相关论文: Existence of Minimizers for Fractional Variational…

200 篇论文

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…

最优化与控制 · 数学 2011-11-11 Tatiana Odzijewicz , Agnieszka B. Malinowska , Delfim F. M. Torres

We review some recent results of the fractional variational calculus. Necessary optimality conditions of Euler-Lagrange type for functionals with a Lagrangian containing left and right Caputo derivatives are given. Several problems are…

最优化与控制 · 数学 2011-11-29 Ricardo Almeida , Agnieszka B. Malinowska , Delfim F. M. Torres

We prove optimality conditions for different variational functionals containing left and right Caputo fractional derivatives. A sufficient condition of minimization under an appropriate convexity assumption is given. An Euler-Lagrange…

最优化与控制 · 数学 2010-10-06 Ricardo Almeida , Delfim F. M. Torres

Main results and techniques of the fractional calculus of variations are surveyed. We consider variational problems containing Caputo derivatives and study them using both indirect and direct methods. In particular, we provide necessary…

最优化与控制 · 数学 2018-11-12 Ricardo Almeida , Delfim F. M. Torres

We prove Euler-Lagrange fractional equations and sufficient optimality conditions for problems of the calculus of variations with functionals containing both fractional derivatives and fractional integrals in the sense of Riemann-Liouville.

最优化与控制 · 数学 2009-10-02 Ricardo Almeida , Delfim F. M. Torres

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 study the fundamental problem of the calculus of variations with variable order fractional operators. Fractional integrals are considered in the sense of Riemann-Liouville while derivatives are of Caputo type.

最优化与控制 · 数学 2013-02-07 Tatiana Odzijewicz , Agnieszka B. Malinowska , Delfim F. M. Torres

We obtain necessary optimality conditions for variational problems with a Lagrangian depending on a Caputo fractional derivative, a fractional and an indefinite integral. Main results give fractional Euler-Lagrange type equations and…

最优化与控制 · 数学 2011-11-11 Ricardo Almeida , Shakoor Pooseh , Delfim F. M. Torres

We study dynamic minimization problems of the calculus of variations with generalized Lagrangian functionals that depend on a general linear operator $K$ and defined on bounded-time intervals. Under assumptions of regularity, convexity and…

最优化与控制 · 数学 2014-05-08 Loïc Bourdin , Tatiana Odzijewicz , Delfim F. M. Torres

We give a proper fractional extension of the classical calculus of variations. Necessary optimality conditions of Euler-Lagrange type for variational problems containing both classical and fractional derivatives are proved. The fundamental…

最优化与控制 · 数学 2012-02-28 Tatiana Odzijewicz , Delfim F. M. Torres

The aim of this paper is to study certain problems of calculus of variations, that are dependent upon a Lagrange function on a Caputo-type fractional derivative. This type of fractional operator is a generalization of the Caputo and the…

最优化与控制 · 数学 2016-02-24 Ricardo Almeida

This paper presents necessary and sufficient optimality conditions for problems of the fractional calculus of variations with a Lagrangian depending on the free end-points. The fractional derivatives are defined in the sense of Caputo.

最优化与控制 · 数学 2010-04-20 Agnieszka B. Malinowska , Delfim F. M. Torres

The study of fractional variational problems in terms of a combined fractional Caputo derivative is introduced. Necessary optimality conditions of Euler-Lagrange type for the basic, isoperimetric, and Lagrange variational problems are…

最优化与控制 · 数学 2011-12-16 Agnieszka B. Malinowska , Delfim F. M. Torres

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

We prove necessary optimality conditions, in the class of continuous functions, for variational problems defined with Jumarie's modified Riemann-Liouville derivative. The fractional basic problem of the calculus of variations with free…

最优化与控制 · 数学 2011-05-10 Ricardo Almeida , Delfim F. M. Torres

We establish necessary optimality conditions for variational problems with a Lagrangian depending on a combined Caputo derivative of variable fractional order. The endpoint of the integral is free, and thus transversality conditions are…

最优化与控制 · 数学 2015-03-30 Dina Tavares , Ricardo Almeida , Delfim F. M. Torres

In order to solve fractional variational problems, there exist two theorems of necessary conditions: an Euler-Lagrange equation which involves Caputo and Riemann-Liouville fractional derivatives, and other Euler-Lagrange equation that…

最优化与控制 · 数学 2021-04-12 Melani Barrios , Gabriela Reyero , Mabel Tidball

Derivatives and integrals of non-integer order were introduced more than three centuries ago, but only recently gained more attention due to their application on nonlocal phenomena. In this context, the Caputo derivatives are the most…

最优化与控制 · 数学 2013-02-15 Matheus J. Lazo , 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

In this paper, we investigate the existence and uniqueness of solutions for a fractional boundary value problem supplemented with nonlocal Riemann-Liouville fractional integral and Caputo fractional derivative boundary conditions. Our…

经典分析与常微分方程 · 数学 2018-05-17 Faouzi Haddouchi
‹ 上一页 1 2 3 10 下一页 ›