Results 31 to 40 of about 2,343,705 (241)

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

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

Conservation laws of nonlinear PDEs arising in elasticity and acoustics in Cartesian, cylindrical, and spherical geometries [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics
Conservation laws are computed for various nonlinear partial differential equations that arise in elasticity and acoustics. Using a scaling homogeneity approach, conservation laws are established for two models describing shear wave propagation in a ...
Willy Hereman, Rehana Naz
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

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

“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

Dispersive optical solitons and conservation laws of Radhakrishnan–Kundu–Lakshmanan equation with dual–power law nonlinearity

open access: yesHeliyon, 2023
The current paper implements three elegant approaches to recover a complete spectrum of optical solitons to the Radhakrishnan–Kundu–Lakshmanan equation with dual–power law of nonlinear refractive index.
Ahmed H. Arnous   +7 more
doaj   +1 more source

Multi-Gear Bandits, Partial Conservation Laws, and Indexability

open access: yesMathematics, 2022
This paper considers what we propose to call multi-gear bandits, which are Markov decision processes modeling a generic dynamic and stochastic project fueled by a single resource and which admit multiple actions representing gears of operation naturally ...
José Niño-Mora
doaj   +1 more source

Self-Adjointness, Symmetries, and Conservation Laws for a Class of Wave Equations Incorporating Dissipation

open access: yesAbstract and Applied Analysis, 2013
In this work, we study the nonlinear self-adjointness and conservation laws for a class of wave equations with a dissipative source. We show that the equations are nonlinear self-adjoint.
Yang Wang, Long Wei
doaj   +1 more source

Growth Equation with a Conservation Law [PDF]

open access: yesMRS Proceedings, 1995
ABSTRACTWe investigate an interface growth equation with a conservation law. The interaction is characterized by an integral kernel. The equation contains the Kardar-Parisi-Zhang, Sun-Guo-Grant, and Molecular-Beam Epitaxy growth equations as special cases and allows for a unified investigation of growth equations.
openaire   +2 more sources

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