TITLE:
A Singular Limit in a Non-Local Reaction-Diffusion Equation in Periodic Media
AUTHORS:
Yu Wei
KEYWORDS:
Nonlocal Fractional Operator, Exponential Speed of Propagation, Asymptotics
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.12 No.12,
December
9,
2024
ABSTRACT: In this paper, we provide an asymptotic analysis of a nonlocal reaction-diffusion equation and with a non-local stable operator of order
α∈(
0,1
)
. Firstly, we prove the existence and uniqueness of positive and bounded solutions for the stationary equation. Finally, we perform a long time-long range scaling in order to prove that the stable state invades the unstable state with a speed which is exponential in time.