Results 1 to 10 of about 14,134,355 (324)
Lagrangian approach in spin-oscillations problem [PDF]
Condensed Matter Physics, 2014 Lagrangian of electronic liquid in magneto-inhomogeneous micro-conductor has been constructed. A corresponding Euler-Lagrange equation has been solved. It was shown that the described system has eigenmodes of spin polarization and total electric current ...
P.V. Pyshkin +2 more
doaj +7 more sources
Hamiltonian Approach to Lagrangian Gauge Symmetries [PDF]
Physics Letters B, 1999 We reconsider the problem of finding all local symmetries of a Lagrangian. Our approach is completely Hamiltonian without any reference to the associated action.
Cabo +8 more
core +6 more sources
Nonconservative Lagrangian Mechanics: A generalized function approach [PDF]
Journal of Physics A: Mathematical and General, 2003 We reexamine the problem of having nonconservative equations of motion arise from the use of a variational principle. In particular, a formalism is developed that allows the inclusion of fractional derivatives.
Dreisigmeyer, David W., Young, Peter M.
core +3 more sources
Lagrangian Approach to Dispersionless KdV Hierarchy [PDF]
Symmetry, Integrability and Geometry: Methods and Applications, 2007 We derive a Lagrangian based approach to study the compatible Hamiltonian structure of the dispersionless KdV and supersymmetric KdV hierarchies and claim that our treatment of the problem serves as a very useful supplement of the so-called r-matrix ...
Amitava Choudhuri, B. Talukdar, U. Das
doaj +4 more sources
A Lagrangian approach for investigating anomalies in the moisture transport during drought episodes
Cuadernos de Investigación Geográfica, 2016 The present work proposes a Lagrangian diagnostic scheme to investigate the anomalous moisture transport before, during, and after the occurrence of drought episodes.
A. Drumond, R. Nieto, L. Gimeno
doaj +2 more sources
Ecological modeling and Lagrangian approach
Open Mathematics, 2013 Abstract A mathematical model is proposed for a quantitative estimation of the damage to biological resources resulting from a pollutant discharge into an aqueous environment. On the basis of the Lagrangian description of fluid motion a set of hydrophysical parameters is introduced with help of which hydrobiologists can estimate the ...
Arkhipov Boris +3 more
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On the supersymmetry invariance of flat supergravity with boundary [PDF]
Journal of High Energy Physics, 2019 The supersymmetry invariance of flat supergravity (i.e., supergravity in the absence of any internal scale in the Lagrangian) in four dimensions on a manifold with non-trivial boundary is explored.
Patrick Concha +2 more
doaj +4 more sources
Nonpolynomial Lagrangian approach to regular black holes [PDF]
International Journal of Modern Physics D, 2017 We present a review on Lagrangian models admitting spherically symmetric regular black holes (RBHs), and cosmological bounce solutions. Nonlinear electrodynamics, nonpolynomial gravity, and fluid approaches are explained in details.
Aimeric Coll'eaux +2 more
semanticscholar +5 more sources
Modelling of evaporation of cough droplets in inhomogeneous humidity fields using the multi-component Eulerian-Lagrangian approach. [PDF]
Build Environ, 2018 Li X, Shang Y, Yan Y, Yang L, Tu J.
europepmc +2 more sources
Effective Lagrangian Approach to the Fermion Mass Problem [PDF]
Physical Review D, 1993 An effective theory is proposed, combining the standard gauge group $SU(3)_{C}\otimes SU(2)_{L}\otimes U(1)_{Y}$ with a horizontal discrete symmetry. By assigning appropriate charges under this discrete symmetry to the various fermion fields and to (at ...
A. Davidson +30 more
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