Qualitative analysis and Hopf bifurcation of a generalized Lengyel–Epstein model

M Chen, T Wang - Journal of Mathematical Chemistry, 2023 - Springer
In this present paper, we deal with a generalized Lengyel–Epstein model with the zero-flux
boundary conditions. Firstly, we give an attraction region and the boundedness estimates of …

The stationary Gierer–Meinhardt system in the upper half-space: existence, nonexistence and asymptotics

M Ghergu - Mathematische Annalen, 2024 - Springer
We study the existence, nonexistence and asymptotics of positive solutions to the Gierer–
Meinhardt system-Δ u+ λ u= upvq+ ρ (x), u> 0 in R+ N:= RN-1×(0,∞),-Δ v+ λ v= umvs, v> 0 in …

Diffusion-induced blowup solutions for the shadow limit model of a singular Gierer–Meinhardt system

GK Duong, NI Kavallaris, H Zaag - Mathematical Models and …, 2021 - World Scientific
In this paper, we provide a thorough investigation of the blowing up behavior induced via
diffusion of the solution of the following non-local problem:∂ tu= Δ u− u+ up∫ Ω urdr γ in …

Impacts of noise on quenching of some models arising in MEMS technology

O Drosinou, NI Kavallaris… - European Journal of …, 2023 - cambridge.org
In the current work, we study a stochastic parabolic problem. The presented problem is
motivated by the study of an idealised electrically actuated MEMS (Micro-Electro-Mechanical …

Blowup solutions for the nonlocal shadow limit model of a singular Gierer-Meinhardt system with critical parameters

GK Duong, TE Ghoul, NI Kavallaris, H Zaag - Journal of Differential …, 2022 - Elsevier
We consider a nonlocal parabolic PDE, which may be regarded as the standard semilinear
heat equation with power nonlinearity, where the nonlinear term is divided by some Sobolev …

On the effects of advection and network structure in spiky patterns for the Gierer-Meinhardt model

Y Ishii - Journal of Differential Equations, 2025 - Elsevier
In this paper, we consider the existence of spike stationary solutions for the Gierer-Meinhardt
model with advection term on the Y-shaped metric graph. By using Liapunov-Schmidt …

[PDF][PDF] Dynamical behavior of the fecal-oral transmission diseases model on a T-periodic evolution domain

Y Zhou, B Zhang, Z Ling - Journal of Applied Analysis & …, 2024 - jaac-online.com
We study the transmission dynamics of a fecal-oral diseases model on a T-periodic
evolution domain. We introduce the basic reproduction number R0 (ρ) as a threshold by …

Spiky patterns for the Schnakenberg model with advection term on Y-shaped metric graph

Y Ishii - Journal of Mathematical Analysis and Applications, 2024 - Elsevier
In this paper, we study the existence of spiky stationary solutions for reaction-diffusion-
advection systems on the Y-shaped metric graph. Considering the Schnakenberg chemical …

Steady-states of the Gierer-Meinhardt system in exterior domains

M Ghergu, J McNicholl - arXiv preprint arXiv:2403.13603, 2024 - arxiv.org
We discuss the existence and nonexistence of solutions to the steady-state Gierer-Meinhardt
system $$\begin {cases}\displaystyle-\Delta u=\frac {u^ p}{v^ q}+\lambda\rho (x)\,, u> 0 …

Diffusion-Driven Blow-Up for a Nonlocal Fisher-KPP Type Model

NI Kavallaris, E Latos, T Suzuki - SIAM Journal on Mathematical Analysis, 2023 - SIAM
The purpose of the current paper is to unveil the key mechanism which is responsible for the
occurrence of Turing-type instability for a nonlocal Fisher-KPP model. In particular, we prove …