Breathers and the dynamics of solutions in KdV type equations

C Muñoz, G Ponce - Communications in Mathematical Physics, 2019 - Springer
In this paper our first aim is to identify a large class of non-linear functions f (·) for which the
IVP for the generalized Korteweg–de Vries equation does not have breathers or “small” …

Asymptotic stability of the fourth-order kink for general perturbations in the energy space

C Maulén, C Muñoz - Annales de l'Institut Henri Poincaré C, 2024 - ems.press
The fourth-order 4 model extends the classical 4 model of quantum field theory to the fourth-
order case, but sharing the same kink solution. It is also the dispersive counterpart of the …

[HTML][HTML] The scattering problem for Hamiltonian ABCD Boussinesq systems in the energy space

C Kwak, C Muñoz, F Poblete, JC Pozo - Journal de Mathématiques Pures …, 2019 - Elsevier
The Boussinesq abcd system is a 4-parameter set of equations posed in R t× R x, originally
derived by Bona, Chen and Saut [11],[12] as first order 2-wave approximations of the …

Almost sharp nonlinear scattering in one-dimensional Born-Infeld equations arising in nonlinear electrodynamics

M Alejo, C Muñoz - Proceedings of the American Mathematical Society, 2018 - ams.org
We study decay of small solutions of the Born-Infeld equation in 1+ 1 dimensions, a
quasilinear scalar field equation modeling nonlinear electromagnetism, as well as branes in …

Asymptotic dynamics for the small data weakly dispersive one-dimensional Hamiltonian ABCD system

C Kwak, C Muñoz - Transactions of the American Mathematical Society, 2020 - ams.org
Consider the Hamiltonian $ abcd $ system in one dimension, with data posed in the energy
space $ H^ 1\times H^ 1$. This model, introduced by Bona, Chen, and Saut, is a well-known …

Existence theory for the Boussinesq equation in modulation spaces

C Banquet, ÉJ Villamizar-Roa - Bulletin of the Brazilian Mathematical …, 2020 - Springer
In this paper we study the Cauchy problem for the generalized Boussinesq equation with
initial data in modulation spaces M^ s _ p^ ′, q (R^ n), M p′, qs (R n), n ≥ 1. n≥ 1. After a …

Almost automorphic delayed differential equations and Lasota-Wazewska model

A Coronel, C Maulén, M Pinto, D Sepúlveda - arXiv preprint arXiv …, 2014 - arxiv.org
Existence of almost automorphic solutions for abstract delayed differential equations is
established. Using ergodicity, exponential dichotomy and Bi-almost automorphicity on the …

Well-Posedness and Scattering for the Generalized Boussinesq Equation

J Chen, B Guo, J Shao - SIAM Journal on Mathematical Analysis, 2023 - SIAM
In this paper, we show the local well-posedness of the generalized Boussinesq equation
(gBQ) in and obtain the global well-posedness, finite-time blowup and small initial data …

Extended decay properties for generalized BBM equation

C Kwak, C Muñoz - Nonlinear dispersive partial differential equations and …, 2019 - Springer
In this note we show that all small solutions of the BBM equation must decay to zero as
t→+∞ in large portions of the physical space, extending previous known results, and only …

On the dynamics of zero-speed solutions for Camassa–Holm-type equations

MA Alejo, MF Cortez, C Kwak… - International Mathematics …, 2021 - academic.oup.com
In this paper, we consider globally defined solutions of Camassa–Holm (CH)-type equations
outside the well-known nonzero-speed, peakon region. These equations include the …