نتایج جستجو برای: bi nonlocal equation

تعداد نتایج: 285275  

Journal: :Proyecciones 2021

This paper is aiming at obtaining weak solution for a bi-nonlocal fourth order elliptic problem with Navier boundary condition. Our approach based on variational methods and critical point theory.

Journal: :Communications in Mathematical Physics 2023

Abstract We provide a rigorous mathematical framework to establish the hydrodynamic limit of Vlasov model introduced in Takata and Noguchi (J. Stat. Phys. 172:880-903, 2018) by order describe phase transition fluids kinetic equations. prove that, when scale parameter tends 0, this converges nonlocal Cahn-Hilliard equation with degenerate mobility. For our analysis, we introduce apropriate forms...

Journal: :Multiscale Modeling & Simulation 2015
Moongyu Park John H. Cushman

The interrelations between weight-function upscaling (measurement) and the definition of various nonlocal operators is explored. Let < f > = f∗g where f∗g is the convolution product which represents the effect of upscaling via an instrument (defined by g) on a field variable f and its localized counterpart. Nonlocal field variables are defined and employed for upscaling. In this talk it will be...

2011
G. A. El M. V. Pavlov

We investigate the structure of the nonlocal closure relation in the kinetic equation for a soliton gas. This kinetic equation represents an integro-differential nonlinear system which has been recently shown to possess a number of remarkable properties and seems to be a representative of an entirely new class of integrable systems. In this paper, we identify the nonlocal kinetic closure relati...

2017
Alka Chadha Dwijendra N Pandey

Abstract: This paper studies the existence of the mild solution for the neutral fractional integro-differential equation with nonlocal initial conditions in a Banach space. We obtain the sufficient condition for the existence results via fixed point theorem and approximate technique without assuming noncompactness or Lipschitz continuity of the nonlocal functions. We give an example for explain...

2006
P. P. ROUCHON

In this paper we prove the existence of a universal, i.e. independent of the initial data, bound for global positive solutions of a diffusion equation with a mixed local-nonlocal reaction term. Such results are already known in some cases of local or nonlocal reaction terms.

2006
Antonio Moro Boris Konopelchenko

High frequency integrable regimes in nonlocal nonlinear optics. Abstract We consider an integrable model which describes light beams propagating in nonlocal nonlinear media of Cole-Cole type. The model is derived as high frequency limit of both Maxwell equations and the nonlocal nonlinear Schrödinger equation. We demonstrate that for a general form of nonlinearity there exist selfguided light b...

2010
Yiping Ma Edward A Spiegel

In this report, we review an elegant technique, known as the Bogoliubov method, for deriving amplitude equations in pattern forming systems, through detailed solution to the classical problem of Rayleigh-Bénard convection, with both free and rigid upper and lower boundaries. The computation is facilitated by the use of a newly proposed diagrammatic technique. The resulting equation is a nonloca...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2006
Shigen Ouyang Qi Guo Wei Hu

In analogy to a perturbed harmonic oscillator, we calculate the fundamental and some other higher order soliton solutions of the nonlocal nonlinear Schödinger equation (NNLSE) in the second approximation in the generally nonlocal case. Comparing with numerical simulations we show that soliton solutions in the second approximation can describe the generally nonlocal soliton states of the NNLSE m...

2009
Andrea L. Bertozzi Dejan Slepčev Igor Kukavica ANDREA L. BERTOZZI

We present an energy-methods-based proof of the existence and uniqueness of solutions of a nonlocal aggregation equation with degenerate diffusion. The equation we study is relevant to models of biological aggregation.

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