Results 281 to 290 of about 14,134,355 (324)

Limiting Lagrangians: A primal approach

Journal of Optimization Theory and Applications, 1986
We consider a convex program with either a finite or an infinite number of constraints and its formal Lagrangian dual. We show that either the primal program satisfies a general condition which implies there is no duality gap or that there is a nonzero vector d with the following properties: First, whenever \(\epsilon\) d is added to the objective ...
Karney, D. F., Morley, T. D.
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Real-Time Optimal Power Flow: A Lagrangian Based Deep Reinforcement Learning Approach

IEEE Transactions on Power Systems, 2020
High-level penetration of intermittent renewable energy sources has introduced significant uncertainties and variabilities into modern power systems. In order to rapidly and economically respond to the changes in power system operating state, this letter
Ziming Yan, Yan Xu
semanticscholar   +1 more source

Lagrangian regularization approach to constrained optimization problems

Nonlinear Analysis: Theory, Methods & Applications, 2004
This paper proposes a new regularization approach, referred to as the Lagrangian regularization approach, which aims to circumvent the nondifferentiability of a positively homogeneous function \(\delta(\cdot|\mathbb{R}^M_-\) in a conceptual unconstrained reformulation for constrained optimization problems.
Pan, Shaohua, Li, Xingsi
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A Partitioned Lagrangian-Lagrangian Approach for Fluid-Solid Interaction Problems

Volume 6: 13th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, 2017
We present a Lagrangian-Lagrangian method for solving Fluid-Solid Interaction (FSI) problems in which the solid phase is deformable/compliant. The fluid phase is modeled using Smoothed Particles Hydrodynamics (SPH); the deformable bodies are modeled with the Absolute Nodal Coordinate Formulation (ANCF).
Milad Rakhsha, Arman Pazouki, Radu Serban, Dan Negrut   +3 more
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Learn the Lagrangian: A Vector-Valued RKHS Approach to Identifying Lagrangian Systems

IEEE Transactions on Cybernetics, 2016
We study the modeling of Lagrangian systems with multiple degrees of freedom. Based on system dynamics, canonical parametric models require ad hoc derivations and sometimes simplification for a computable solution; on the other hand, due to the lack of prior knowledge in the system's structure, modern nonparametric models in machine learning face the ...
Ching-An, Cheng, Han-Pang, Huang
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A Lagrangian approach to bungee jumping

Physics Education, 2020
The fact that a bungee jumper can reach an acceleration greater than the acceleration of gravity is, also from a physics point of view, intriguing. Taking only gravity into account, it can be explained by applying conservation of energy or by deriving carefully the equation of motion in a Newtonian approach.
Heck, A., Uylings, P.
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Geometrodynamics regained: A Lagrangian approach

Journal of Mathematical Physics, 1974
The closing relation between two super-Hamiltonians is cast into a condition on the super-Lagrangian by a functional Legendre transformation. It is shown that the ADM super-Lagrangian provides the unique representation of the ``group'' of deformations of a spacelike hypersurface embedded in a Riemannian space-time when the intrinsic geometry gij of the
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Vector-borne disease models with Lagrangian approach

Journal of Mathematical Biology
We develop a multi-group and multi-patch model to study the effects of population dispersal on the spatial spread of vector-borne diseases across a heterogeneous environment. The movement of host and/or vector is described by Lagrangian approach in which the origin or identity of each individual stays unchanged regardless of movement.
Daozhou Gao, Linlin Cao
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An Approach to the Eulerian-Lagrangian Problem

Journal of Mathematical Physics, 1962
The generalization is developed, for n functions of n variables, of the Kac-Rice theorem on the occurrence of zeros of a random function, and is applied to a particular kind of vector integral equation in a single independent variable (time) by discretizing the time axis.
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Pseudo-Rigid Bodies: A Geometric Lagrangian Approach

Acta Applicandae Mathematica, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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