Spreading speeds and transition fronts of lattice KPP equations in time heterogeneous media
Spreading speeds and transition fronts of lattice KPP equations in time heterogeneous media
The current paper is devoted to the study of spreading speeds and transition fronts of lattice KPP equations in time heterogeneous media. We first prove the existence, uniqueness, and stability of spatially homogeneous entire positive solutions. Next, we establish lower and upper bounds of the (generalized) spreading speed intervals. Then, …