A Generalization of a Fractional Variational Problem with Dependence on the Boundaries and a Real Parameter

In this paper, we present a new fractional variational problem where the Lagrangian depends not only on the independent variable, an unknown function and its left- and right-sided Caputo fractional derivatives with respect to another function, but also on the endpoint conditions and a free parameter...

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Main Authors: Ricardo Almeida, Natália Martins
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Fractal and Fractional
Subjects:
Online Access:https://www.mdpi.com/2504-3110/5/1/24
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author Ricardo Almeida
Natália Martins
author_facet Ricardo Almeida
Natália Martins
author_sort Ricardo Almeida
collection DOAJ
description In this paper, we present a new fractional variational problem where the Lagrangian depends not only on the independent variable, an unknown function and its left- and right-sided Caputo fractional derivatives with respect to another function, but also on the endpoint conditions and a free parameter. The main results of this paper are necessary and sufficient optimality conditions for variational problems with or without isoperimetric and holonomic restrictions. Our results not only provide a generalization to previous results but also give new contributions in fractional variational calculus. Finally, we present some examples to illustrate our results.
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spelling doaj.art-6e2a47e3ac1c43939f7d2883325e19fa2023-11-21T11:05:13ZengMDPI AGFractal and Fractional2504-31102021-03-01512410.3390/fractalfract5010024A Generalization of a Fractional Variational Problem with Dependence on the Boundaries and a Real ParameterRicardo Almeida0Natália Martins1Center for Research and Development in Mathematics and Applications (CIDMA), Department of Mathematics, University of Aveiro, 3810-193 Aveiro, PortugalCenter for Research and Development in Mathematics and Applications (CIDMA), Department of Mathematics, University of Aveiro, 3810-193 Aveiro, PortugalIn this paper, we present a new fractional variational problem where the Lagrangian depends not only on the independent variable, an unknown function and its left- and right-sided Caputo fractional derivatives with respect to another function, but also on the endpoint conditions and a free parameter. The main results of this paper are necessary and sufficient optimality conditions for variational problems with or without isoperimetric and holonomic restrictions. Our results not only provide a generalization to previous results but also give new contributions in fractional variational calculus. Finally, we present some examples to illustrate our results.https://www.mdpi.com/2504-3110/5/1/24fractional calculusEuler–Lagrange equationnatural boundary conditionsisoperimetric problemsholonomic-constrained problems
spellingShingle Ricardo Almeida
Natália Martins
A Generalization of a Fractional Variational Problem with Dependence on the Boundaries and a Real Parameter
Fractal and Fractional
fractional calculus
Euler–Lagrange equation
natural boundary conditions
isoperimetric problems
holonomic-constrained problems
title A Generalization of a Fractional Variational Problem with Dependence on the Boundaries and a Real Parameter
title_full A Generalization of a Fractional Variational Problem with Dependence on the Boundaries and a Real Parameter
title_fullStr A Generalization of a Fractional Variational Problem with Dependence on the Boundaries and a Real Parameter
title_full_unstemmed A Generalization of a Fractional Variational Problem with Dependence on the Boundaries and a Real Parameter
title_short A Generalization of a Fractional Variational Problem with Dependence on the Boundaries and a Real Parameter
title_sort generalization of a fractional variational problem with dependence on the boundaries and a real parameter
topic fractional calculus
Euler–Lagrange equation
natural boundary conditions
isoperimetric problems
holonomic-constrained problems
url https://www.mdpi.com/2504-3110/5/1/24
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