Results 71 to 80 of about 5,496 (165)

Transport theory within a generalized Boltzmann equation for multiband wave packets

open access: yesPhysical Review Research, 2020
A generalized theory for transport under applied electrochemical potential and temperature gradients that includes multiband effects is presented.
T. Stedman, L. M. Woods
doaj   +1 more source

Phonons with orbital angular momentum in ultrarelativistic dense plasmas

open access: yesAIP Advances
Studying phonon modes with orbital angular momentum (OAM) in ultra-relativistic dense plasmas provides new insights into wave dynamics under extreme conditions.
Imtiaz Hussain   +5 more
doaj   +1 more source

Linear stabilization for a degenerate wave equation in non divergence form with drift

open access: yesBulletin of Mathematical Sciences
We consider a degenerate wave equation in one dimension, with drift and in presence of a leading operator which is not in divergence form. We impose a homogeneous Dirichlet boundary condition where the degeneracy occurs and a boundary damping at the ...
Genni Fragnelli, Dimitri Mugnai
doaj   +1 more source

Wave Propagation in Anisotropic Magnetically Quantized Ion Plasma with Trapped Electron and Positron

open access: yesEast European Journal of Physics
This study examines the effects of magnetically quantized degenerate trapped electrons and positrons on small-amplitude ion acoustic shock waves (IAShWs) in a pair ion plasma using the Zakharov-Kuznetsov Burger (ZKB) equation.
Balaram Pradhan   +2 more
doaj   +1 more source

The Degenerate Vacuum and the Infinite Component Wave Equation [PDF]

open access: yesProgress of Theoretical Physics, 1967
In the field theoretical viewpoint, an infinite component wave equation, which is of first order in p '"' is derived for the one-particle wave function. The mass formulas are as follows : m=JJ.o(J +~) for the simplified Heisenberg nwdel, m= ±JJ.o(J +D for the original Heisenberg model, where J denotes the intrinsic spin of one-particle states. For this
openaire   +1 more source

Mathematical Formulation of Causal Propagation in Relativistic Ideal Fluids

open access: yesAxioms
We establish a rigorous kinetic-theoretical framework to analyze causal propagation in thermal transport phenomena within relativistic ideal fluids, building a more rigorous framework based on the kinetic theory of gases.
Dominique Brun-Battistini   +2 more
doaj   +1 more source

On exact solutions of a degenerate quasilinear wave equation with source term

open access: yesElectronic Journal of Differential Equations, 2006
In this paper, we construct exact solutions of the Cauchy problem of degenerate quasilinear wave equation of Kirchhoff type, and study the effect of the nonlinear terms on the existence of solutions.
Nour-Eddine Amroun, Abbes Benaissa
doaj  

Exponential Stability for a Degenerate/Singular Beam-Type Equation in Non-Divergence Form

open access: yesAxioms
The paper deals with the stability of a degenerate/singular beam equation in non-divergence form. In particular, we assume that the degeneracy and the singularity are at the same boundary point and we impose clamped conditions where the degeneracy occurs
Mohammad Akil   +2 more
doaj   +1 more source

Ion-acoustic waves with orbital angular momentum in a partially degenerate plasma

open access: yesAIP Advances
In this paper, we investigate the properties of ion-acoustic waves (IAWs) with finite orbital angular momentum (OAM) modes in a collisionless, unmagnetized, and homogeneous non-relativistic plasma comprised of degenerate electron species and inertial ...
B. M. Alotaibi   +7 more
doaj   +1 more source

Dynamical behavior of fractional nonlinear dispersive equation in Murnaghan’s rod materials

open access: yesResults in Physics
The primary objective of this study aims to carry out a more thorough investigation into a fractional nonlinear double dispersive equation that is used to represent wave propagation in an elastic, inhomogeneous Murnaghan’s rod.
Riaz Ur Rahman   +6 more
doaj   +1 more source

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