The Euler-Lagrange and Legendre Necessary Conditions for Fractional Calculus of Variations

Fuente: arXiv
Saved in:
Bibliographic Details
Main Authors: Yusubov, Shikhi Sh., Yusubov, Shakir Sh., Mahmudov, Elimhan N.
Format: Preprint
Published: 2025
Subjects:
Online Access:
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1866918049752285184
author Yusubov, Shikhi Sh.
Yusubov, Shakir Sh.
Mahmudov, Elimhan N.
author_facet Yusubov, Shikhi Sh.
Yusubov, Shakir Sh.
Mahmudov, Elimhan N.
contents In this paper, we study the problems of minimizing a functional depending on the Caputo fractional derivative of order $0< α\leq 1$ and the Riemann- Liouville fractional integral of order $β>0$ under certain constraints. A fractional analogue of the Du Bois-Reymond lemma is proved. Using this lemma for various weak local minimum problems, the Euler-Lagrange equation is derived in integral form. Some serious works in the literature claim that the standard proof of the Legendre condition in the classical case $α=1$ cannot be adapted to the fractional case $0<α<1$ with final constraints. In spite of this, we prove the Legendre conditions using the standard classical method. The obtained necessary conditions are illustrated by appropriate examples.
format Preprint
id arxiv_https___arxiv_org_abs_2506_06736
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Euler-Lagrange and Legendre Necessary Conditions for Fractional Calculus of Variations
Yusubov, Shikhi Sh.
Yusubov, Shakir Sh.
Mahmudov, Elimhan N.
Optimization and Control
26A33, 49K99, 49K05
In this paper, we study the problems of minimizing a functional depending on the Caputo fractional derivative of order $0< α\leq 1$ and the Riemann- Liouville fractional integral of order $β>0$ under certain constraints. A fractional analogue of the Du Bois-Reymond lemma is proved. Using this lemma for various weak local minimum problems, the Euler-Lagrange equation is derived in integral form. Some serious works in the literature claim that the standard proof of the Legendre condition in the classical case $α=1$ cannot be adapted to the fractional case $0<α<1$ with final constraints. In spite of this, we prove the Legendre conditions using the standard classical method. The obtained necessary conditions are illustrated by appropriate examples.
title The Euler-Lagrange and Legendre Necessary Conditions for Fractional Calculus of Variations
topic Optimization and Control
26A33, 49K99, 49K05
url https://arxiv.org/abs/2506.06736