Abstract:
The Cauchy problem for quasilinear parabolic equations with KPZ-nonlinearities is considered. It is proved that the behavior of the solution as
t→∞ can change substantially as compared with the homogeneous case if the equation involves zero-order terms. More specifically, the solution decays at infinity irrespective of the behavior of the initial function and the rate and character of this decay depend on the conditions imposed on the lower order coefficients of the equation.
This work was supported by the Russian Foundation for Basic Research (project no. 20-01-00288 A) (Theorems 1, 2) and by the RUDN program “5-100” (Theorems 3, 4).
This publication is cited in the following 5 articles:
N. N. Nefedov, A. O. Orlov, “Existence and stability of stationary solutions with boundary layers in a system of fast and slow reaction–diffusion–advection equations with KPZ nonlinearities”, Theoret. and Math. Phys., 220:1 (2024), 1178–1192
E.I. Nikulin, N.N. Nefedov, A.O. Orlov, “Existence and Asymptotic Stability of Solutions for Periodic Parabolic Problems in Tikhonov-Type Reaction–Diffusion–Advection Systems with KPZ Nonlinearities”, Russ. J. Math. Phys., 31:3 (2024), 504
N. N Nefedov, A. O Orlov, “Existence and Stability of Solutions with Internal Transition Layer for the Reaction–Diffusion–Advection Equation with a KPZ-Nonlinearity”, Differentsialnye uravneniya, 59:8 (2023), 1007
N. N. Nefedov, A. O. Orlov, “Existence and Stability of Solutions with Internal Transition Layer for the Reaction–Diffusion–Advection Equation with a KPZ-Nonlinearity”, Diff Equat, 59:8 (2023), 1009
Andrey B. Muravnik, “Qualitative Properties of Solutions of Equations and Inequalities with KPZ-Type Nonlinearities”, Mathematics, 11:4 (2023), 990