Results 91 to 100 of about 16,705 (192)

The Reduced Euler-Lagrange Equations [PDF]

open access: yes, 1993
Marsden and Scheurle [1993] studied Lagrangian reduction in the context of momentum map constraints—here meaning the reduction of the standard Euler-Lagrange system restricted to a level set of a momentum map.
Marsden, Jerrold E., Scheurle, Jürgen
core  

RIEMANNIAN OBSERVERS FOR EULER-LAGRANGE SYSTEMS [PDF]

open access: yes, 2005
In this paper, a geometrically intrinsic observer for Euler-Lagrange systems is defined and analysed. This observer is an generalization of the observer recently proposed by Aghannan and Rouchon.
David A. Anisi   +3 more
core   +1 more source

A Variational Method for Multivalued Boundary Value Problems

open access: yesAbstract and Applied Analysis, 2020
In this paper, we investigate the existence of solution for differential systems involving a ϕ−Laplacian operator which incorporates as a special case the well-known p−Laplacian operator.
Droh Arsène Béhi, Assohoun Adjé
doaj   +1 more source

Adaptive Sliding Mode Control Design for Interval Type‐2 T–S Fuzzy Systems With Time Delay: An Event‐Triggered Approach

open access: yesInternational Journal of Robust and Nonlinear Control, Volume 36, Issue 12, Page 6047-6067, August 2026.
ABSTRACT In this work, a new event‐triggered adaptive first‐order sliding mode control method is proposed for nonlinear systems with constant time delays, modeled by interval type‐2 Takagi–Sugeno (T–S) fuzzy systems. To handle matched disturbances with unknown upper bounds, a non‐overestimating adaptation strategy for the control coefficient is ...
Rodrigo Possidonio Noronha   +1 more
wiley   +1 more source

Distributed optimal formation control of heterogeneous Euler–Lagrange multi-agent systems

open access: yesJournal of Automation and Intelligence
In this paper, the distributed optimal formation control problem of heterogeneous Euler–Lagrange multi-agent systems with generic formation constraints and inequality constraints is investigated. Based on the primal–dual dynamics and the adaptive control
Mengmeng Duan   +4 more
doaj   +1 more source

Weak Solutions for a Class of Nonlocal Singular Problems Over the Nehari Manifold

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 11, Page 12360-12378, 30 July 2026.
ABSTRACT In this paper, we consider a nonlocal model of dilatant non‐Newtonian fluid with a Dirichlet boundary condition. By using the Nehari manifold and fibering map methods, we obtain the existence of at least two weak solutions, with sign information.
Zhenfeng Zhang   +2 more
wiley   +1 more source

Does the Orientation of an Euler Diagram Affect User Comprehension? [PDF]

open access: yes, 2012
Euler diagrams, which form the basis of numerous visual languages, can be an effective representation of information when they are both well-matched and well-formed. However, being well-matched and well-formed alone does not imply effectiveness.
Howse, John   +5 more
core  

A Hybrid‐High Order Method for Fracture Modelling

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 13, 15 July 2026.
ABSTRACT In this work we introduce a new Hybrid High‐Order method for the numerical simulation of fracture propagation based on phase‐field models. The proposed method: supports general meshes made of polygonal/polyhedral elements, which provides great flexibility in mesh design and adaptation; can accommodate large variations of both the displacement ...
Alessandra Crippa   +4 more
wiley   +1 more source

Centralized Control in Networks of Underactuated Nonidentical Euler–Lagrange Systems Using a Generalised Multicoordinates Transformation [PDF]

open access: yes, 2022
Controlling the network of underactuated Euler–Lagrange (EL) systems is challenging because of their coupled inertia matrices and time-variant control input matrices.
Salamat, Babak, Elsbacher, Gerhard
core  

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