Results 11 to 20 of about 477,243 (287)

Variational problem, Lagrangian and $\mu$-conservation law of the generalized Rosenau-type equation [PDF]

open access: yesAUT Journal of Mathematics and Computing
The goal of this article is to compute conservation law, Lagrangian and $\mu$-conservation law of the generalized Rosenau-type equation using the homotopy operator, the $\mu$-symmetry method and the variational problem method.
Khodayar Goodarzi
doaj   +1 more source

Chiral Lagrangian with confinement from the QCD Lagrangian [PDF]

open access: yes, 2002
An effective Lagrangian for the light quark in the field of a static source is derived systematically using the exact field correlator expansion. The lowest Gaussian term is bosonized using nonlocal colorless bosonic fields and a general structure of ...
A. Dhar   +48 more
core   +2 more sources

Duality relation among the Hamiltonian structures of a parametric coupled Korteweg-de Vries system

open access: yesOpen Physics, 2016
We obtain the full Hamiltonian structure for a parametric coupled KdV system. The coupled system arises from four different real basic lagrangians. The associated Hamiltonian functionals and the corresponding Poisson structures follow from the geometry ...
Restuccia Alvaro, Sotomayor Adrián
doaj   +1 more source

The oscillator's model with broken symmetry

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2015
The equations of the oscillator motion are considered. The exact solutions are given in the form of exponents with an additional parameter that characterizes the asymmetry of the oscillations.
Dmitry B Volov
doaj   +1 more source

FloodSim: Flood Simulation and Visualization Framework Using Position-Based Fluids

open access: yesISPRS International Journal of Geo-Information, 2020
Flood modeling and analysis has been a vital research area to reduce damages caused by flooding and to make urban environments resilient against such occurrences.
I. Alihan Hadimlioglu   +2 more
doaj   +1 more source

Equation on the basis of one-dimensional chaotic dynamics

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
Modified Klein–Gordon–Fock equations were obtained on the basis of one-dimensional chaotic dynamics and the original Lagrangians were found. The concepts of $m$-exponential map and groups with broken symmetry are introduced.
Dmitry Borisovich Volov
doaj   +1 more source

Emergence of a neopelagic community through the establishment of coastal species on the high seas

open access: yesNature Communications, 2021
Discoveries of persistent coastal species in the open ocean shift our understanding of biogeographic barriers. Floating plastic debris from pollution now supports a novel sea surface community composed of coastal and oceanic species at sea that might ...
Linsey E. Haram   +10 more
doaj   +1 more source

DYNAMICAL MODE OF CASE STUDY ON MASS-SPRING SYSTEM ON A MASSLESS CART: COMPARED ANALYTICAL AND NUMERICAL SOLUTIONS [PDF]

open access: yesJournal of Mechanics of Continua and Mathematical Sciences
In this research, we study the dynamical behaviors of a mass-spring system on a massless moving cart. The Lagrangian of the system was first constructed, which resulted in obtaining the Euler-Lagrange equation (ELE) of the system.
Rabab Jarrar   +4 more
doaj   +1 more source

A dataset of hourly sea surface temperature from drifting buoys

open access: yesScientific Data, 2022
Measurement(s) temperature of sea surface Technology Type(s) Thermistor Device Factor Type(s) Latitude • Longitude • Time Sample Characteristic - Environment Ocean Sample Characteristic - Location ...
Shane Elipot   +4 more
doaj   +1 more source

Transient Euler-Lagrange/DEM simulation of stent thrombosis

open access: yesCurrent Directions in Biomedical Engineering, 2016
Stent implantation is the treatment of choice for cardiovascular diseases. By introduction of biodegradable thick strut stents investigations of thrombosis formation is one focus of research.
Stiehm Michael   +3 more
doaj   +1 more source

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