Results 21 to 30 of about 536,909 (305)

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

Asymptotic conservation laws in field theory [PDF]

open access: yes, 1996
A new, general, field theoretic approach to the derivation of asymptotic conservation laws is presented. In this approach asymptotic conservation laws are constructed directly from the field equations according to a universal prescription which does not ...
Charles G. Torre   +15 more
core   +6 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

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   +4 more sources

Lagrangian-Eulerian approximation methods for balance laws and hyperbolic conservation laws

open access: yesRevista UIS Ingenierías, 2018
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]

open access: yesPublications de l'Institut Mathematique, 2005
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   +4 more sources

“Irregularization” of systems of conservation laws

open access: yesMaterials Theory, 2018
We explore new ways of regulating defect behavior in systems of conservation laws. Contrary to usual regularization schemes (such as a vanishing viscosity limit), which attempt to control defects by making them smoother, our schemes result in defects ...
Hunter Swan   +5 more
doaj   +1 more source

Conservation laws for incompressible fluids

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1989
By means of a direct approach, a complete set of conservation laws for incompressible fluids is determined. The problem is solved in the material (Lagrangian) description and the results are eventually rewritten in the spatial (Eulerian) formulation.
G. Caviglia, A. Morro
doaj   +1 more source

Fluctuations and Conservation Laws [PDF]

open access: yesActa Physica Polonica B Proceedings Supplement, 2021
Author(s): Koch, V; Vovchenko, V; Poberezhnyuk, RV | Abstract: We report on recent progress concerning effects of global conservation laws on cumulants of conserved quantities. Specifically, we will relate for an arbitrary equation of state cumulants of a conserved charge measured in a subvolume of a thermal system with the corresponding grandcanonical
Koch, V, Vovchenko, V, Poberezhnyuk, RV
openaire   +3 more sources

Integrable viscous conservation laws [PDF]

open access: yes, 2014
We propose an extension of the Dubrovin-Zhang perturbative approach to the study of normal forms for non-Hamiltonian integrable scalar conservation laws. The explicit computation of the first few corrections leads to the conjecture that such normal forms
Arsie, Alessandro   +2 more
core   +2 more sources

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