Results 1 to 10 of about 61,379 (266)

Long-Time Asymptotics for the Camassa-Holm Equation [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2009
We apply the method of nonlinear steepest descent to compute the long-time asymptotics of the Camassa-Holm equation for decaying initial data, completing previous results by A. Boutet de Monvel and D.
Aleksey Kostenko   +5 more
core   +5 more sources

Long-time asymptotics for polymerization models [PDF]

open access: yesCommunications in Mathematical Physics, 2018
This study is devoted to the long-term behavior of nucleation, growth and fragmentation equations, modeling the spontaneous formation and kinetics of large polymers in a spatially homogeneous and closed environment.
Calvo, Juan   +2 more
core   +8 more sources

Long time asymptotics for optimal investment [PDF]

open access: yes, 2014
This survey reviews portfolio selection problem for long-term horizon. We consider two objectives: (i) maximize the probability for outperforming a target growth rate of wealth process (ii) minimize the probability of falling below a target growth rate ...
Pham, Huyen
core   +8 more sources

Nonlinear Aggregation-Diffusion Equations: Radial Symmetry and Long Time Asymptotics [PDF]

open access: yesInventiones mathematicae, 2019
We analyze under which conditions equilibration between two competing effects, repulsion modeled by nonlinear diffusion and attraction modeled by nonlocal interaction, occurs.
Carrillo, J. A.   +3 more
core   +7 more sources

The “good” Boussinesq equation : long-time asymptotics

open access: yesAnalysis & PDE, 2023
We consider the initial-value problem for the ``good'' Boussinesq equation on the line. Using inverse scattering techniques, the solution can be expressed in terms of the solution of a $3 \times 3$-matrix Riemann-Hilbert problem. We establish formulas for the long-time asymptotics of the solution by performing a Deift-Zhou steepest descent analysis of ...
Charlier, Christophe   +2 more
openaire   +4 more sources

Refined long-time asymptotics for Fisher–KPP fronts [PDF]

open access: yesCommunications in Contemporary Mathematics, 2019
We study the one-dimensional Fisher–KPP equation, with an initial condition [Formula: see text] that coincides with the step function except on a compact set. A well-known result of Bramson in [Maximal displacement of branching Brownian motion, Comm. Pure Appl. Math.
Nolen, James   +2 more
openaire   +5 more sources

Long-Time Asymptotics for the Nonlocal MKdV Equation* [PDF]

open access: yesCommunications in Theoretical Physics, 2019
Abstract In this paper, we study the Cauchy problem with decaying initial data for the nonlocal modified Korteweg-de Vries equation (nonlocal mKdV) qt(x, t) + qxxx(x,t) −6q(x, t)q(−x, −t)qx (x, t) = 0, which can be viewed as a generalization of the local classical mKdV equation.
He, Feng-Jing, Fan, En-Gui, Xu, Jian
openaire   +3 more sources

The asymptotics of stochastically perturbed reaction-diffusion equations and front propagation

open access: yesComptes Rendus. Mathématique, 2020
We study the asymptotics of Allen–Cahn-type bistable reaction-diffusion equations which are additively perturbed by a stochastic forcing (time white noise).
Lions, Pierre-Louis   +1 more
doaj   +1 more source

THE ASYMPTOTICS OF A SOLUTION OF THE MULTIDIMENSIONAL HEAT EQUATION WITH UNBOUNDED INITIAL DATA

open access: yesUral Mathematical Journal, 2021
For the multidimensional heat equation, the long-time asymptotic approximation of the solution of the Cauchy problem is obtained in the case when the initial function grows at infinity and contains logarithms in its asymptotics.
Sergey V. Zakharov
doaj   +1 more source

Long-term filtration of particles in a porous medium [PDF]

open access: yesE3S Web of Conferences
The formation of grout sediment in the pores of loose rock increases the water resistance of the soil and strengthens the foundation. A one-dimensional model of filtration in a porous medium considers the particles transport by the flow of a carrier ...
Kuzmina Liudmila, Osipov Yuri
doaj   +3 more sources

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