Results 11 to 20 of about 553,706 (265)
This study investigates via Lie symmetry analysis the Hunter–Saxton equation, an equation relevant to the theoretical analysis of nematic liquid crystals.
Molahlehi Charles Kakuli +2 more
doaj +1 more source
New asymptotic conservation laws for electromagnetism
We obtain the subleading tail to the memory term in the late time electromagnetic radiative field generated due to a generic scattering of charged bodies. We show that there exists a new asymptotic conservation law which is related to the subleading tail
Sayali Atul Bhatkar
doaj +1 more source
The conservation laws of several 2+1 dimensional semi-discrete equations
In this paper, we further develop and enrich the results on conservation laws obtained in Zhu (2003) and present two forms of conservation laws in different directions.
Chun-Xia Li +4 more
doaj +1 more source
Dym equation: group analysis and conservation laws [PDF]
In this paper group-invariant properties of the Dym equation are studied. Lie symmetries are given and some group-invariant solutions are found with the use of similarity variables obtained from these operators.
S. Reza Hejazi, Azadeh Naderifard
doaj +1 more source
Conservation laws for a viscoelastic medium
In this paper we consider a first order quasilinear non homogenoeus hyperbolic system describing viscoelastic processes. A full classification of first order local conservation laws admitted by such a rate-type model has been given.
Natale Manganaro
doaj +2 more sources
On the structure of conservation laws of (3+1)-dimensional wave equation
In this paper, a (3+1)-dimensional wave equation is studied from the point of view of Lie’s theory in partial differential equations including conservation laws.
S. Reza Hejazi, Elham Lashkarian
doaj +1 more source
Coherence cost for violating conservation laws
In isolated quantum systems that have conserved quantities, such as energy and total magnetization, the conserved quantities cannot vary their values with their own dynamics.
Hiroyasu Tajima +2 more
doaj +1 more source
Lagrangian-Eulerian approximation methods for balance laws and hyperbolic conservation laws
A new finite control volume in a Lagrangian-Eulerian framework is presented (see papers [1, 28]), in which a local space-time domain is studied, in order to design a locally conservative scheme.
Eduardo Abreu, Jhon Perez, Arthur Santo
doaj +1 more source
Symmetries of conservation laws [PDF]
We apply techniques of symmetry group analysis in solving two systems of conservation laws: a model of two strictly hyperbolic conservation laws and a zero pressure gas dynamics model, which both have no global solution, but whose solution consists of singular shock waves.
openaire +3 more sources
An Analysis of the invariance and conservation laws of some classes of nonlinear ostrovsky equations and related systems [PDF]
A large class of partial differential equations in the modelling of ocean waves are due to Ostrovsky. We determine the invariance properties (through the Lie point symmetry generators) and construct classes of conservation laws for some of the models. In
Fakhar, Kamran, Kara, Abdul Hamid
core +1 more source

