Results 51 to 60 of about 880,471 (154)

On Newton's Third Law and its Symmetry-Breaking Effects

open access: yes, 2011
The law of action-reaction, considered by Ernst Mach the cornerstone of physics, is thoroughly used to derive the conservation laws of linear and angular momentum.
Pinheiro, Mario J.
core   +1 more source

Time-Varying Metasurfaces and Lorentz Non-Reciprocity

open access: yes, 2015
A cornerstone equation of optics, Snell's law, relates the angles of incidence and refraction for light passing through an interface between two media.
Kildishev, Alexander   +2 more
core   +1 more source

A coupled system of mKdV-KdV equations with damping

open access: yesApplied Mathematics in Science and Engineering
In this paper, we study the influence of a damping term on the dynamics of a coupled Korteweg–de Vries type system, namely the mKdV–KdV system, posed on the real line.
Aissa Boukarou   +3 more
doaj   +1 more source

Functionals with values in the non‐Archimedean field of Laurent series and their applications to the equations of elasticity theory

open access: yesMathematical Modelling and Analysis, 2003
Functionals with values in Non‐Archimedean field of Laurent series applied to the definition of generalized solution (in the form of shock wave) of the Hopf equation and equations of elasticity theory.
M. Radyna
doaj   +1 more source

The Optical Chirality Flux as a Useful Far-Field Probe of Chiral Near Fields

open access: yes, 2016
To optimize the interaction between chiral matter and highly twisted light, quantities that can help characterize chiral electromagnetic fields near nanostructures are needed.
Burger, Sven   +6 more
core   +1 more source

Weak compactness of biharmonic maps

open access: yesElectronic Journal of Differential Equations, 2012
This article shows that if a sequence of weak solutions of a perturbed biharmonic map satisfies $Phi_ko 0$ in $(W^{2,2})^*$ and $u_kightharpoonup u$ weakly in $W^{2,2}$, then $u$ is a biharmonic map. In particular, we show that the space of biharmonic
Shenzhou Zheng
doaj  

On the Generation of Infinitely Many Conservation Laws of the Black-Scholes Equation

open access: yesComputation, 2020
Construction of conservation laws of differential equations is an essential part of the mathematical study of differential equations. In this paper we derive, using two approaches, general formulas for finding conservation laws of the Black-Scholes ...
Winter Sinkala
doaj   +1 more source

Pseudo-Hermiticity protects the energy-difference conservation in the scattering

open access: yesPhysical Review Research, 2023
Symmetry plays a fundamentally important role in physics. In this work, we find a conservation law, S^{†}(H_{c}^{†})S(H_{c})=I, which is valid for any non-Hermitian scattering center H_{c}.
H. S. Xu, L. Jin
doaj   +1 more source

Mathematical Modeling of Cell Growth via Inverse Problem and Computational Approach

open access: yesComputation
A simple cell population growth model is proposed, where cells are assumed to have a physiological structure (e.g., a model describing cancer cell maturation, where cells are structured by maturation stage, size, or mass). The main question is whether we
Ivanna Andrusyak   +3 more
doaj   +1 more source

Normal scaling in globally conserved interface-controlled coarsening of fractal clusters

open access: yes, 2000
Globally conserved interface-controlled coarsening of fractal clusters exhibits dynamic scale invariance and normal scaling. This is demonstrated by a numerical solution of the Ginzburg-Landau equation with a global conservation law.
A. D. Rutenberg   +41 more
core   +1 more source

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