Results 11 to 20 of about 37,202 (296)

The conservation laws of several 2+1 dimensional semi-discrete equations

open access: yesPartial Differential Equations in Applied Mathematics, 2022
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

Stochastic conservation laws? [PDF]

open access: yesChaos, Solitons & Fractals, 2000
We examine conservation laws, typically the conservation of linear momentum, in the light of a recent successful formulation of fermions as Kerr-Newman type Black Holes, which are created fluctuationally from a background Zero Point Field. We conclude that these conservation laws are to be taken in the spirit of thermodynamic laws.
openaire   +2 more sources

New asymptotic conservation laws for electromagnetism

open access: yesJournal of High Energy Physics, 2021
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

Conservation Laws and Symmetry Reductions of the Hunter–Saxton Equation via the Double Reduction Method

open access: yesMathematical and Computational Applications, 2023
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

Conservation laws with discontinuous flux

open access: yesNetworks and Heterogeneous Media, 2006
We consider a hyperbolic conservation law with discontinuous flux. Such a partial differential equation arises in different applications, in particular we are motivated by a model of traffic flow. We provide a new formulation in terms of Riemann Solvers.
Mauro Garavello   +3 more
doaj   +1 more source

Conservation laws for a viscoelastic medium

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2019
We show that some properties of rank 2 reflexive sheaves true on P^3 can be extended to a wide class of smooth projective threefolds. In particular, we establish some cohomological conditions in order that a rank 2 reflexive sheaf is locally free or a ...
Mario Valenzano
doaj   +2 more sources

Coherence cost for violating conservation laws

open access: yesPhysical Review Research, 2020
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

Dym equation: group analysis and conservation laws [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2022
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

On the structure of conservation laws of (3+1)-dimensional wave equation

open access: yesArab Journal of Mathematical Sciences, 2018
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

SYMMETRY AND CONSERVATION LAWS [PDF]

open access: yesProceedings of the National Academy of Sciences, 1964
Symmetry and invariance considerations, and even conservation laws, played undoubtedly an important role in the thinking of the early physicists, such as Galileo and Newton, and probably even before then. However, these considerations were not thought to be particularly important and were articulated only rarely.
openaire   +2 more sources

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