Zobrazeno 1 - 10
of 50 770
pro vyhledávání: '"Time periodic"'
Autor:
Farwig, Reinhard, Tsuda, Kazuyuki
The paper considers the time periodic problem of the Navier-Stokes system in an exterior domain under time periodic external forces. Existence of periodic mild solutions is obtained in the critical scale invariant space $C(\mathbb{R};L^n)$ if the ext
Externí odkaz:
http://arxiv.org/abs/2409.17590
A rigid body $\mathcal{B}$ moves in an otherwise quiescent viscous liquid filling the whole space outside $\mathcal{B}$, under the action of a time-periodic force $\boldsymbol{\mathsf{f}}$ of period $T$ applied to a given point of $\mathcal{B}$ and o
Externí odkaz:
http://arxiv.org/abs/2410.07448
Autor:
Dabiri, S. Sajad, Asgari, Reza
We present a comprehensive formalism for calculating the linear and nonlinear optical response of time-periodic (Floquet) quantum systems. Our approach, based on density matrix evolution in the Floquet basis, employs the length gauge and incorporates
Externí odkaz:
http://arxiv.org/abs/2409.13157
In this work, we consider a general time-periodic linear transport equation with integral source term. We prove the existence of a Floquet principal eigenvalue, namely a real number such that the equation rescaled by this number admits nonnegative pe
Externí odkaz:
http://arxiv.org/abs/2409.01868
This paper investigates acoustic wave scattering from materials with periodic time-modulated material parameters. We consider the basic case of a single connected domain where absorbing or Neumann boundary conditions are enforced. Energy estimates li
Externí odkaz:
http://arxiv.org/abs/2410.10297
Autor:
Kaltenbacher, Barbara
Motivated by applications of nonlinear ultrasonics under continuous wave excitation, we study the Jordan-Moore-Gibson-Thompson (JMGT) equation -- a third order in time quasilinear PDE -- under time periodicity conditions. Here the coefficient of the
Externí odkaz:
http://arxiv.org/abs/2409.05355
We examine the Euler equations within a simply-connected bounded domain. The dynamics of a single point vortex are governed by a Hamiltonian system, with most of its energy levels corresponding to time-periodic motion. We show that for the single poi
Externí odkaz:
http://arxiv.org/abs/2408.16671
Autor:
Kagei, Yoshiyuki, Takeda, Hiroshi
Existence and stability of time periodic solutions for nonlinear elastic wave equations with viscoelastic terms are established. The existence of the time periodic solution is proved using the spectral decomposition of the linear principal part and t
Externí odkaz:
http://arxiv.org/abs/2408.16962
This work examines the global dynamics of classical solutions of a two-stage (juvenile-adult) reaction-diffusion population model in time-periodic and spatially heterogeneous environments. It is shown that the sign of the principal eigenvalue $\lambd
Externí odkaz:
http://arxiv.org/abs/2407.18669
We provide the first and rigorous confirmations of the hypotheses by Ludwig Boltzmann in his seminal paper \cite{Boltzmann} within the context of the Landau equation in the presence of a harmonic potential. We prove that (i) Each {\it entropy-invaria
Externí odkaz:
http://arxiv.org/abs/2407.07659