Results 221 to 230 of about 19,826 (256)

Lagrangian fractional mechanics — a noncommutative approach

Czechoslovak Journal of Physics, 2005
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Lagrangian approach for dark solitons

Optics Communications, 1995
We propose a variational formalism for dark solitons based on a nontrivial modification of the standard Lagrangian of the nonlinear Schrodinger equation. Our approach allows to consider a variety of asymptotically nonvanishing localised solutions for applying a variational technique together with the correct definition of momentum and energy.
Yuri S. Kivshar, Wiesław Królikowski
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Lagrangian approach to the dual gluodynamics

Nuclear Physics B - Proceedings Supplements, 2001
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Chernodub, M. N., Gubarev, F. V., Polikarpov, M. I., Zakharov, V. I.   +3 more
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Logicoalgebraic approach to Lagrangian systems

International Journal of Theoretical Physics, 1983
A logicoalgebraic approach to the geometry of Lagrangian systems is pursued by starting axiomatically with a classical mechanical system whose logic is a separable and atomic Boolean σ algebra.
Barone, F., Grassini, R.
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The Lagrangian Approach To Hydrodynamics

1996
Let Θ be a bounded domain in Rn with a smooth boundary. Consider the space L2 (Θ) of square integrable scalar functions. To define the Sobolev space Hs(Θ) for all s ∈ Z we first set H°(Θ) = L2(Θ).
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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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The stability of arches in the Lagrangian approach

International Journal of Solids and Structures, 1985
This article concerns the bridge arch whose axis is the funicular curve of its own weight. All the hypotheses can be quite general, the structures may even be unsymmetrical, the ends may have an angular flexibility; the loads may be of any kind and the moment of inertia may vary according to a generic law. The arch is reduced to a set of rigid bars and
Raithel, A., Franciosi, C.
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An alternative Lagrangian approach

American Journal of Physics
In this note, I present alternative expressions for the standard Lagrangian and action, and I discuss the corresponding Hamiltonian and canonical transformation. The new expressions are equivalent to the traditional versions, but written in a way that reveals a useful first-order differential equation for the motion of the system.
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Lagrangian approach to reconnection and topology change

Physical Review E
We employ well-known concepts from statistical physics, quantum field theories, and general topology to study magnetic reconnection and topology change and their connection in incompressible flows in the context of an effective field theory without appealing to magnetic field lines.
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The templex approach in Lagrangian Analysis

2023
Lagrangian analysis is central to understanding how fluid particles are organized in their time evolution. Of particular interest in geophysics are rotating fluids in the presence of a radial temperature gradient, similar to those that control the dynamics of the atmosphere and oceans on a planetary scale. The phenomenon can be studied with the help of
Charó, Gisela, Letellier, Christophe, Sciamarella, Denisse   +2 more
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