Results 21 to 30 of about 76,666 (170)

Model of System Microgrid in radial Topology using Euler-Lagrange Equation [PDF]

open access: yesE3S Web of Conferences, 2022
The need of power and equipment that can serve to distribute the electric energy becomes primordial things this period that almost of domains’ specialists work in, and one of this equipment is microgrid system that gain more and more places in not just ...
Nahir Abir, Abelilah Jalid
doaj   +1 more source

An efficient design for solving discrete optimal control problem with time-varying multi-delays [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2022
The focus of this article is on the study of discrete optimal control problems (DOCPs) governed by time-varying systems, including time-varying delays in control and state variables.
S.M. Abdolkhaleghzade   +2 more
doaj   +1 more source

Fractional-Order Euler-Lagrange Equation for Fractional-Order Variational Method: A Necessary Condition for Fractional-Order Fixed Boundary Optimization Problems in Signal Processing and Image Processing

open access: yesIEEE Access, 2016
This paper discusses a novel conceptual formulation of the fractional-order Euler-Lagrange equation for the fractional-order variational method, which is based on the fractional-order extremum method. In particular, the reverse incremental optimal search
Yi-Fei Pu
doaj   +1 more source

New conservation laws of the Boussinesq and generalized Kadomtsev–Petviashvili equations via homotopy operator

open access: yesResults in Physics, 2023
According to the tools of linear algebra and calculus of variations, the conservation laws of Boussinesq and generalized Kadomtsev–Petviashvili (gKP) equations are investigated using multipliers and scaling methods. Using the Euler–Lagrange operator, the
Mehdi Jafari   +3 more
doaj   +1 more source

Connecting Euler and Lagrange systems as nonlocally related systems of dynamical nonlinear elasticity

open access: yesArchives of Mechanics, 2011
Nonlocally related systems for the Euler and Lagrange systems of two-dimensional dynamical nonlinear elasticity are constructed. Using the continuity equation, i.e., conservation of mass of the Euler system to represent the density and Eulerian velocity ...
G. Bluman, J.F. Ganghoffer
doaj   +1 more source

Weighted Generalized Fractional Integration by Parts and the Euler–Lagrange Equation

open access: yesAxioms, 2022
Integration by parts plays a crucial role in mathematical analysis, e.g., during the proof of necessary optimality conditions in the calculus of variations and optimal control.
Houssine Zine   +3 more
doaj   +1 more source

Optimal Dynamical Decoherence Control of a Qubit [PDF]

open access: yes, 2008
A theory of dynamical control by modulation for optimal decoherence reduction is developed. It is based on the non-Markovian Euler-Lagrange equation for the energy-constrained field that minimizes the average dephasing rate of a qubit for any given ...
Daniel A. Lidar   +5 more
core   +1 more source

On the variational interpretation of the discrete KP equation [PDF]

open access: yes, 2015
We study the variational structure of the discrete Kadomtsev-Petviashvili (dKP) equation by means of its pluri-Lagrangian formulation. We consider the dKP equation and its variational formulation on the cubic lattice ${\mathbb Z}^{N}$ as well as on the ...
A Doliwa   +6 more
core   +3 more sources

Numerical solution of fractional Sturm-Liouville equation in integral form [PDF]

open access: yes, 2014
In this paper a fractional differential equation of the Euler-Lagrange / Sturm-Liouville type is considered. The fractional equation with derivatives of order $\alpha \in \left( 0,1 \right]$ in the finite time interval is transformed to the integral form.
Blaszczyk, Tomasz, Ciesielski, Mariusz
core   +1 more source

RETRACTED: On the Nature of Some Euler’s Double Equations Equivalent to Fermat’s Last Theorem

open access: yesMathematics, 2022
In this work, I provide a new rephrasing of Fermat’s Last Theorem, based on an earlier work by Euler on the ternary quadratic forms. Effectively, Fermat’s Last Theorem can be derived from an appropriate use of the concordant forms of Euler and from an ...
Andrea Ossicini
doaj   +1 more source

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