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We have investigated the nonlinear amplitude vector equation governing the evolution of optical pulses in optical and UV region. We are normalizing this equation for the cases of different and equal transverse and longitudinal size of…

斑图形成与孤子 · 物理学 2015-06-26 L. M. Kovachev , L. M. Ivanov , D. Y. Dakova , L. I. Pavlov , K. L. Kovachev

We study the propagation of ultra-short short solitons in a cubic nonlinear medium modeled by nonlinear Maxwell's equations with stochastic variations of media. We consider three cases: variations of (a) the dispersion, (b) the phase…

斑图形成与孤子 · 物理学 2015-06-12 Levent Kurt , Tobias Schaefer

The Stokes equation with the varying viscosity is considered in a thin tube structure, i.e. in a connected union of thin rectangles with heights of order $\varepsilon<<1 $ and with bases of order 1 with smoothened boundary. An asymptotic…

偏微分方程分析 · 数学 2014-03-25 G. Cardone , R. Fares , G. P. Panasenko

The dynamics of two-component solitons is studied, analytically and numerically, in the framework of a system of coupled extended nonlinear Schr\"odinger equations, which incorporate the cross-phase modulation,…

斑图形成与孤子 · 物理学 2017-05-19 E. M. Gromov , B. A. Malomed , V. V. Tyutin

The self-consistent description of Langmuir wave and ion-sound wave turbulence in the presence of an electron beam is presented for inhomogeneous non-isothermal plasmas. Full numerical solutions of the complete set of kinetic equations for…

等离子体物理 · 物理学 2019-03-21 E. P. Kontar , H. L. Pecseli

It is noted that the Jones-matrix formalism for polarization optics is a six-parameter two-by-two representation of the Lorentz group. It is shown that the four independent Stokes parameters form a Minkowskian four-vector, just like the…

光学 · 物理学 2009-10-30 D. Han , Y. S. Kim , Marilyn E. Noz

This paper is devoted to the well-posedness analysis of a nonstationary Stokes hemivariational inequality for an incompressible fluid flow described by the Stokes equations subject to a nonsmooth boundary condition of friction type…

数值分析 · 数学 2026-03-31 Weimin Han , Shengda Zeng

Solutions to the Stokes equations written in terms of a small number of hydrodynamic image singularities have been a useful tool in theoretical and numerical computations for nearly fifty years. In this article, we extend the catalogue of…

流体动力学 · 物理学 2020-07-07 Alexander Chamolly , Eric Lauga

Stokes wave is a finite amplitude periodic gravity wave propagating with constant velocity in inviscid fluid. Complex analytical structure of Stokes wave is analyzed using a conformal mapping of a free fluid surface of Stokes wave into the…

斑图形成与孤子 · 物理学 2016-06-30 Pavel M. Lushnikov

Our work deals with the systematic study of the coupling between the nonlocal Stokes system and the Vlasov equation. The coupling is due to a drag force generated by the fluid-particles interaction. We establish the existence of global weak…

偏微分方程分析 · 数学 2014-07-30 Gabriel Nguetseng , Celestin Wafo Soh , Jean Louis Woukeng

The nonlinear evolution of an ion ring instability in a low-beta magnetospheric plasma is considered. The evolution of the two-dimensional ring distribution is essentially quasilinear. Ignoring nonlinear processes the time-scale for the…

等离子体物理 · 物理学 2015-05-27 M. Mithaiwala , L. Rudakov1 , G. Ganguli , C. Crabtree

This work is devoted to the study of the limiting behaviour of the Stokes type fluid flows in porous media. The boundary conditions here are of the Fourier-Neumann's type on the boundary of the holes. Under the periodic hypothesis on the…

偏微分方程分析 · 数学 2024-12-25 Lazarus Signing

In this paper the theory and simulation results are presented for 3D vector cylindrical rotationally symmetric electromagnetic wave propagation in an isotropic nonlinear medium using a modified finite-difference time-domain general vector…

斑图形成与孤子 · 物理学 2025-09-10 Caleb J. Grimms , Robert D. Nevels

We discuss diffusion of particles in a spatially inhomogeneous medium. From the microscopic viewpoint we consider independent particles randomly evolving on a lattice. We show that the reversibility condition has a discrete geometric…

统计力学 · 物理学 2018-11-14 Daniele Andreucci , Emilio N. M. Cirillo , Matteo Colangeli , Davide Gabrielli

The Stokes formalism of polarization physics has astounding structural parallels with the formalism used for relativity theory in Minkowski spacetime. The structure and symmetry properties of the Mueller matrices are the same as those for…

太阳与恒星天体物理 · 物理学 2020-04-15 Jan Stenflo

This is the first of a series of papers devoted to the development of the invariant imbedding theory of mode conversion in inhomogeneous plasmas. A new version of the invariant imbedding theory of wave propagation in inhomogeneous media…

等离子体物理 · 物理学 2009-11-11 Kihong Kim , Dong-Hun Lee

The well-known Stokes waves refer to periodic traveling waves under the gravity at the free surface of a two dimensional full water wave system. In this paper, we prove that small-amplitude Stokes waves with infinite depth are nonlinearly…

偏微分方程分析 · 数学 2021-01-01 Gong Chen , Qingtang Su

When studying fluid-body interactions in the low-Froude limit, traditional asymptotic theory predicts a waveless free-surface at every order. This is due to the fact that the waves are in fact exponentially small---that is, beyond all…

流体动力学 · 物理学 2024-11-20 Yyanis Johnson-Llambias , John Fitzgerald , Philippe H. Trinh

In a recent work [20], we predicted and experimentally validated a new physical mechanism for altering the propagation path of a monochromatic beam. Specifically, we showed that by properly tailoring the spatial distribution of the linear…

光学 · 物理学 2023-05-24 J. M. Nichols , D. V. Nickel , G. K. Rohde , F. Bucholtz

For the system of Maxwell equations of electromagnetism in an $l$-periodic composite medium of overall size $L$ ($0<l<L<\infty$), in the low-frequency quasistatic approximation, we develop an electromagnetic version of strain-gradient…

数学物理 · 物理学 2015-11-19 Kirill D. Cherednichenko , James A. Evans